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19-2288; Rev 1; 7/02
2.5GHz 45dB RF-Detecting Controllers
General Description
The MAX4000/MAX4001/MAX4002 low-cost, low-power logarithmic amplifiers are designed to control RF power amplifiers (PA) operating in the 0.1GHz to 2.5GHz frequency range. A typical dynamic range of 45dB makes this family of log amps useful in a variety of wireless applications including cellular handset PA control, transmitter power measurement, and RSSI for terminal devices. Logarithmic amplifiers provide much wider measurement range and superior accuracy to controllers based on diode detectors. Excellent temperature stability is achieved over the full operating range of -40C to +85C. The choice of three different input voltage ranges eliminates the need for external attenuators, thus simplifying PA control-loop design. The logarithmic amplifier is a voltage-measuring device with a typical signal range of -58dBV to -13dBV for the MAX4000, -48dBV to -3dBV for the MAX4001, and -43dBV to +2dBV for the MAX4002. The input signal for the MAX4000 is internally AC-coupled using an on-chip 5pF capacitor in series with a 2k input resistance. This highpass coupling, with a corner at 16MHz, sets the lowest operating frequency and allows the input signal source to be DC grounded. The MAX4001/MAX4002 require an external coupling capacitor in series with the RF input port. These PA controllers feature a power-on delay when coming out of shutdown, holding OUT low for approximately 5s to ensure glitchfree controller output. The MAX4000/MAX4001/MAX4002 family is available in an 8-pin MAX package and an 8-bump chip-scale package (UCSPTM). The device consumes 5.9mA with a 5.5V supply, and when powered down the typical shutdown current is 13A. o Variety of Input Ranges MAX4000: -58dBV to -13dBV (-45dBm to 0dBm in 50) MAX4001: -48dBV to -3dBV (-35dBm to +10dBm in 50) MAX4002: -43dBV to +2dBV (-30dBm to +15dBm in 50) o Frequency Range from 100MHz to 2.5GHz o Temperature Stable Linear-in-dB Response o Fast Response: 70ns 10dB Step o 10mA Output Sourcing Capability o Low Power: 17mW at 3V (typ) o Shutdown Current 30A (max) o Available in an 8-Bump UCSP and a Small 8-Pin MAX Package
Features
o Complete RF-Detecting PA Controllers
MAX4000/MAX4001/MAX4002
Ordering Information
PART MAX4000EBL-T MAX4000EUA MAX4001EBL-T MAX4001EUA MAX4002EBL-T MAX4002EUA TEMP RANGE -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C PINPACKAGE 8 UCSP-8 8 MAX 8 UCSP-8 8 MAX 8 UCSP-8 8 MAX TOP MARK ABF -- ABE -- ABD --
Applications
Transmitter Power Measurement and Control TSSI for Wireless Terminal Devices Cellular Handsets (TDMA, CDMA, GPRS, GSM) RSSI for Fiber Modules
Pin Configurations appear at end of data sheet.
Functional Diagram
SHDN VCC OUTPUT ENABLE DELAY + gm X1 OUT
DET RFIN 10dB
DET
DET
DET
DET
CLPF 10dB 10dB 10dB V-I OFFSET COMP LOWNOISE BANDGAP SET
MAX4000
UCSP is a registered trademark of Maxim Integrated Products, Inc.
GND (PADDLE)
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
2.5GHz 45dB RF-Detecting Controllers MAX4000/MAX4001/MAX4002
ABSOLUTE MAXIMUM RATINGS
(Voltages Referenced to GND) VCC ...........................................................................-0.3V to +6V OUT, SET, SHDN, CLPF .............................-0.3V to (VCC + 0.3V) RFIN MAX4000 ......................................................................+6dBm MAX4001 ....................................................................+16dBm MAX4002 ....................................................................+19dBm Equivalent Voltage MAX4000 ..................................................................0.45VRMS MAX4001 ....................................................................1.4VRMS MAX4002 ....................................................................2.0VRMS OUT Short Circuit to GND ..........................................Continuous Continuous Power Dissipation (TA = +70C) 8-Bump UCSP (derate 4.7mW/C above +70C).........379mW 8-Pin MAX (derate 4.5mW/C above +70C) .............362mW Operating Temperature Range ...........................-40C to +85C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering , 10s) ................................+300C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VCC = 3V, SHDN = 1.8V, TA = -40C to +85C, unless otherwise noted. Typical values are at TA = +25C.) (Note 1)
PARAMETER Supply Voltage Supply Current Shutdown Supply Current Shutdown Output Voltage Logic-High Threshold Logic-Low Threshold SHDN Input Current SET-POINT INPUT Voltage Range (Note 2) Input Resistance Slew Rate (Note 3) MAIN OUTPUT Voltage Range Output-Referred Noise Small-Signal Bandwidth Slew Rate BW VOUT High, ISOURCE = 10mA Low, ISINK = 350A From CLPF From CLPF VOUT = 0.2V to 2.6V 2.65 2.75 0.15 8 20 8 V nV/Hz MHz V/s VSET RIN Corresponding to central 40dB 0.35 30 16 1.45 V M V/s SYMBOL VCC ICC ICC VOUT VH VL ISHDN SHDN = 3V SHDN = 0 -0.8 5 -0.01 VCC = 5.5V SHDN = 0.8V, VCC = 5.5V SHDN = 0.8V 1.8 0.8 20 CONDITIONS MIN 2.7 5.9 13 100 TYP MAX 5.5 9.3 30 UNITS V mA A mV V V A
2
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2.5GHz 45dB RF-Detecting Controllers
ELECTRICAL CHARACTERISTICS
(VCC = 3V, SHDN = 1.8V, fRF = 100MHz to 2.5GHz, TA = -40C to +85C, unless otherwise noted. Typical values are at TA = +25C.) (Note 1)
PARAMETER RF Input Frequency RF Input Voltage Range (Note 4) SYMBOL fRF MAX4000 VRF MAX4001 MAX4002 MAX4000 Equivalent Power Range (50 Terminated) (Note 4) PRF MAX4001 MAX4002 fRF = 100MHz Logarithmic Slope VS fRF = 900MHz fRF = 1900MHz MAX4000 fRF = 100MHz MAX4001 MAX4002 MAX4000 Logarithmic Intercept PX fRF = 900MHz MAX4001 MAX4002 MAX4000 fRF = 1900MHz RF INPUT INTERFACE DC Resistance Inband Resistance Inband Capacitance RDC RIB CIB MAX4000, internally AC-coupled (Note 6) MAX4001/MAX4002, connected to VCC (Note 5) 2 2 0.5 k k pF MAX4001 MAX4002 -62 -52 -47 CONDITIONS MIN 100 -58 -48 -43 -45 -35 -30 22.5 25.5 25 29 -55 -45 -40 -57 -48 -43 -56 -45 -41 dBm -49 -39 -34 TYP MAX 2500 -13 -3 +2 0 +10 +15 28.5 mV/dB dBm dBV UNITS MHz
MAX4000/MAX4001/MAX4002
Note 1: All devices are 100% production tested at TA = +25C and are guaranteed by design for TA = -40C to +85C as specified. All production AC testing is done at 100MHz. Note 2: Typical value only, set-point input voltage range determined by logarithmic slope and logarithmic intercept. Note 3: Set-point slew rate is the rate at which the reference level voltage, applied to the inverting input of the gm stage, responds to a voltage step at the SET pin (see Figure 1). Note 4: Typical min/max range for detector. Note 5: MAX4000 internally AC-coupled. Note 6: MAX4001/MAX4002 are internally resistive-coupled to VCC.
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3
2.5GHz 45dB RF-Detecting Controllers MAX4000/MAX4001/MAX4002
Typical Operating Characteristics
(VCC = 3V, SHDN = VCC, TA = +25C, unless otherwise specified.)
MAX4000 SET vs. INPUT POWER (MAX)
MAX4000 toc01
MAX4001 SET vs. INPUT POWER (MAX)
MAX4000 toc02
MAX4002 SET vs. INPUT POWER (MAX)
1.6 1.4 1.2 SET (V) 1.9GHz 2.5GHz
MAX4000 toc03
1.8 1.6 1.4 1.2 SET (V) 1.0 0.8 0.6 0.4 0.2 -60 -50 -40 -30 -20 -10 0
0.1GHz
1.8 1.6 1.4 1.2 SET (V) 1.0 0.8 0.6 0.4 0.2 0.9GHz
0.1GHz
1.8
1.9GHz 2.5GHz
1.9GHz 2.5GHz
0.9GHz
0.1GHz
1.0 0.8 0.6 0.4 0.2
0.9GHz
10
-50
-40
-30
-20
-10
0
10
20
-40
-30
-20
-10
0
10
20
30
INPUT POWER (dBm)
INPUT POWER (dBm)
INPUT POWER (dBm)
MAX4000 SET vs. INPUT POWER (UCSP)
MAX4000 toc04
MAX4001 SET vs. INPUT POWER (UCSP)
MAX4000 toc05
MAX4002 SET vs. INPUT POWER (UCSP)
1.6 1.4 1.2 SET (V) 1.9GHz 1.0 0.8 0.6 0.4 0.2 0 0.1GHz 0.9GHz 2.5GHz
MAX4000 toc06
1.8 1.6 1.4 1.2 SET (V) 1.0 0.8 0.6 0.4 0.2 0 -60 -50 -40 -30 -20 -10 0 0.9GHz 2.5GHz 1.9GHz
1.8 1.6 1.4 1.2 SET (V) 1.9GHz 1.0 0.8 0.6 0.4 0.2 0 2.5GHz 0.1GHz
1.8
0.1GHz
0.9GHz
10
-50
-40
-30
-20
-10
0
10
20
-40
-30
-20
-10
0
10
20
30
INPUT POWER (dBm)
INPUT POWER (dBm)
INPUT POWER (dBm)
MAX4000 LOG CONFORMANCE vs. INPUT POWER (MAX)
MAX4000 toc07
MAX4001 LOG CONFORMANCE vs. INPUT POWER (MAX)
MAX4000 toc08
MAX4002 LOG CONFORMANCE vs. INPUT POWER (MAX)
3 2 ERROR (dB) 2.5GHz
0.1GHz
MAX4000 toc09
4 3 2 1.9GHz ERROR (dB) 1 0 -1 0.9GHz -2 -3 -4 -50 -40 -30 -20 -10 0
0.1GHz
4 2.5GHz 3 2 ERROR (dB) 1 0 0.9GHz -1 -2 -3 -4 -40 -30 -20 -10 0 10 1.9GHz
0.1GHz
4
2.5GHz
1 0 -1 1.9GHz -2 -3 -4 0.9GHz
10
20
-35
-25
-15
-5
5
15
25
INPUT POWER (dBm)
INPUT POWER (dBm)
INPUT POWER (dBm)
4
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2.5GHz 45dB RF-Detecting Controllers
Typical Operating Characteristics (continued)
(VCC = 3V, SHDN = VCC, TA = +25C, unless otherwise specified.)
MAX4000 LOG CONFORMANCE vs. INPUT POWER (UCSP)
MAX4000 toc10
MAX4000/MAX4001/MAX4002
MAX4001 LOG CONFORMANCE vs. INPUT POWER (UCSP)
MAX4000 toc11
MAX4002 LOG CONFORMANCE vs. INPUT POWER (UCSP)
3 2.5GHz 2 ERROR (dB) 1 0 -1 -2 1.9GHz -3 -4 -35 -25 -15 -5 5 15 25 0.9GHz 0.1GHz
MAX4000 toc12
MAX4000 toc15
4 3 2 ERROR (dB) 1 0 -1 -2 -3 -4 -50 -40 -30 -20 -10 0 1.9GHz 0.1GHz 0.9GHz 2.5GHz
4 3 2 ERROR (dB) 1 0 -1 -2 -3 -4 -40 -30 -20 -10 0 10 1.9GHz 2.5GHz 0.1GHz 0.9GHz
4
10
20
INPUT POWER (dBm)
INPUT POWER (dBm)
INPUT POWER (dBm)
MAX4000 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.1GHz (MAX)
1.8 1.6 1.4 1.2 SET (V) 1.0 0.8 0.6 0.4 0.2 -50 -40 -30 -20 -10 0 INPUT POWER (dBm) TA = +85C TA = +25C TA = -40C
MAX4000 toc13
MAX4001 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.1GHz (MAX)
4 3 2 1 0 -1 -2 -3 ERROR (dB) SET (V) 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 -40 -30 -20 -10 0 10 INPUT POWER (dBm) TA = +85C TA = +25C TA = -40C -2 -3 -4 20
MAX4000 toc14
MAX4002 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.1GHz (MAX)
4 3 2 ERROR (dB) SET (V) 1 0 -1 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 -35 -25 -15 -5 5 15 INPUT POWER (dBm) TA = +85C TA = +25C TA = -40C -2 -3 -4 25 4 3 2 ERROR (dB) ERROR (dB) 1 0 -1
-4 10
MAX4000 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.1GHz (UCSP)
1.8 1.6 1.4 1.2 SET (V) 1.0 0.8 0.6 0.4 0.2 -50 -40 -30 -20 -10 0 INPUT POWER (dBm) TA = +85C TA = +25C TA = -40C
MAX4000 toc16
MAX4001 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.1GHz (UCSP)
4 3 2 SET (V) 1 0 -1 -2 -3 ERROR (dB) 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 -40 -30 -20 -10 0 10 INPUT POWER (dBm) TA = +85C TA = +25C TA = -40C -2 -3 -4 20
MAX4000 toc17
MAX4002 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.1GHz (UCSP)
4 3 2 1 0 -1 ERROR (dB) SET (V) 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 -35 -25 -15 -5 5 15 INPUT POWER (dBm) TA = +85C TA = +25C TA = -40C
MAX4000 toc18
4 3 2 1 0 -1 -2 -3
-4 10
-4 25
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5
2.5GHz 45dB RF-Detecting Controllers MAX4000/MAX4001/MAX4002
Typical Operating Characteristics (continued)
(VCC = 3V, SHDN = VCC, TA = +25C, unless otherwise specified.)
MAX4000 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.9GHz (MAX)
1.8 1.6 1.4 1.2 SET (V) 1.0 0.8 0.6 TA = -40C 0.4 0.2 -50 -40 -30 -20 -10 0 INPUT POWER (dBm) -3 -4 10 0.4 0.2 -40 -30 -20 -10 0 10 INPUT POWER (dBm) TA = +85C TA = +25C -2 0.6 TA = -40C -3 -4 20 0.4 0.2 -35 -25 -15 -5 5 15 INPUT POWER (dBm)
MAX4000 toc19
MAX4001 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.9GHz (MAX)
4 3 2 ERROR (dB) 1 0 -1 SET (V) 1.8 1.6 1.4 1.2 1.0 0.8 TA = +25C -2 0.6 TA = +85C
MAX4000 toc20
MAX4002 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.9GHz (MAX)
4 3 2 ERROR (dB) SET (V) 1 0 -1 1.8 1.6 1.4 1.2 1.0 0.8 TA = +25C -2 TA = -40C -3 -4 25 TA = +85C
MAX4000 toc21
4 3 2 ERROR (dB) ERROR (dB) ERROR (dB) 1 0 -1
MAX4000 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.9GHz (UCSP)
1.8 1.6 1.4 1.2 SET (V) 1.0 0.8 0.6 0.4 0.2 -50 -40 -30 -20 -10 0 INPUT POWER (dBm) TA = +85C TA = -40C TA = +25C
MAX4000 toc22
MAX4001 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.9GHz (UCSP)
4 3 2 ERROR (dB) 1 0 -1 -2 -3 SET (V) 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 -40 -30 -20 -10 0 10 INPUT POWER (dBm) TA = +85C TA = +25C TA = -40C
MAX4000 toc23
MAX4002 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.9GHz (UCSP)
4 3 2 ERROR (dB) 1 0 -1 -2 -3 SET (V) 1.8 1.6 1.4 1.2 TA = +85C 1.0 0.8 0.6 0.4 0.2 -35 -25 -15 -5 5 15 INPUT POWER (dBm) TA = +25C TA = -40C 0 -1 -2 -3 -4 25
MAX4000 toc24
4 3 2 1
-4 10
-4 20
MAX4000 SET AND LOG CONFORMANCE vs. INPUT POWER AT 1.9GHz (MAX)
1.8 1.6 1.4 1.2 SET (V) 1.0 0.8 0.6 TA = -40C 0.4 0.2 -50 -40 -30 -20 -10 0 INPUT POWER (dBm) -3 -4 10 0.4 0.2 TA = +85C TA = +25C -2 0.6 TA = +85C TA = +25C TA = -40C 2 ERROR (dB) 1 0 -1 SET (V)
MAX4000 toc25
MAX4001 SET AND LOG CONFORMANCE vs. INPUT POWER AT 1.9GHz (MAX)
4 3 1.8 1.6 1.4 1.2 1.0 0.8 TA = +85C TA = +25C -2 TA = -40C -3 -40 -30 -20 -10 0 10 -4 20 0.6 0.4 0.2 TA = +85C TA = +25C TA = -40C 2 ERROR (dB) 1 0 -1 SET (V)
MAX4000 toc26
MAX4002 SET AND LOG CONFORMANCE vs. INPUT POWER AT 1.9GHz (MAX)
4 3 1.8 1.6 1.4 1.2 1.0 0.8 TA = +85C TA = +25C -2 TA = -40C -3 15 -4 25 TA = +85C TA = +25C TA = -40C 2 1 0 -1
MAX4000 toc27
4 3
-35
-25
-15
-5
5
INPUT POWER (dBm)
INPUT POWER (dBm)
6
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2.5GHz 45dB RF-Detecting Controllers
Typical Operating Characteristics (continued)
(VCC = 3V, SHDN = VCC, TA = +25C, unless otherwise specified.)
MAX4000 SET AND LOG CONFORMANCE vs. INPUT POWER AT 1.9GHz (UCSP)
1.8 1.6 1.4 1.2 SET (V) 1.0 0.8 0.6 TA = -40C 0.4 0.2 -50 -40 -30 -20 -10 0 INPUT POWER (dBm) -3 -4 10 0.4 0.2 -40 -30 -20 -10 0 10 INPUT POWER (dBm) TA = +85C TA = +25C -2 0.6 TA = -40C -3 -4 20 0.4 0.2 -35 -25 -15 -5 5 15 INPUT POWER (dBm) TA = +85C TA = +25C TA = -40C
MAX4000 toc28
MAX4000/MAX4001/MAX4002
MAX4001 SET AND LOG CONFORMANCE vs. INPUT POWER AT 1.9GHz (UCSP)
4 3 2 ERROR (dB) 1 0 -1 SET (V) 1.8 1.6 1.4 1.2 1.0 0.8 TA = +85C TA = +25C -2 0.6 TA = +85C TA = +25C TA = -40C
MAX4000 toc29
MAX4002 SET AND LOG CONFORMANCE vs. INPUT POWER AT 1.9GHz (UCSP)
4 3 2 ERROR (dB) 1 0 -1 SET (V) 1.8 TA = +85C 1.6 1.4 1.2 1.0 0.8 TA = -40C TA = -40C TA = +25C 3 2 ERROR (dB) ERROR (dB) ERROR (dB) 1 0 -1 -2 -3 -4 25
MAX4000 toc30
4
MAX4000 SET AND LOG CONFORMANCE vs. INPUT POWER AT 2.5GHz (MAX)
1.8 1.6 1.4 1.2 SET (V) 1.0 0.8 0.6 0.4 0.2 -50 -40 -30 -20 -10 0 INPUT POWER (dBm) TA = +85C TA = +25C TA = -40C TA = -40C TA = +85C TA = +25C 2 ERROR (dB) SET (V) 1 0 -1 -2 -3 -4 10
MAX4000 toc31
MAX4001 SET AND LOG CONFORMANCE vs. INPUT POWER AT 2.5GHz (MAX)
4 3 1.8 TA = +85C 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 -40 -30 -20 -10 0 10 INPUT POWER (dBm) TA = +85C TA = +25C TA = -40C -3 -4 20 0.4 0.2 TA = +25C TA = -40C 3 2 ERROR (dB) SET (V) 1 0 -1 -2 1.6 1.4 1.2 1.0 0.8 0.6
MAX4000 toc32
MAX4002 SET AND LOG CONFORMANCE vs. INPUT POWER AT 2.5GHz (MAX)
4 1.8 TA = +85C TA = +25C TA = -40C
MAX4000 toc33
4 3 2 1 0 -1
TA = +85C TA = +25C TA = -40C -35 -25 -15 -5 5 15
-2 -3 -4 25
INPUT POWER (dBm)
MAX4000 SET AND LOG CONFORMANCE vs. INPUT POWER AT 2.5GHz (UCSP)
1.8 1.6 1.4 1.2 SET (V) 1.0 0.8 0.6 TA = +25C 0.4 0.2 -50 -40 -30 -20 -10 0 INPUT POWER (dBm) TA = -40C -3 -4 10 0.4 0.2 TA = +85C TA = -40C TA = +85C TA = +25C 2 ERROR (dB) 1 0 -1 -2 SET (V) 1.4 1.2 1.0 0.8 0.6
MAX4000 toc34
MAX4001 SET AND LOG CONFORMANCE vs. INPUT POWER AT 2.5GHz (UCSP)
4 3 1.8 1.6 TA = +85C TA = +25C TA = -40C
MAX4000 toc35
MAX4002 SET AND LOG CONFORMANCE vs. INPUT POWER AT 2.5GHz (UCSP)
4 3 2 ERROR (dB) SET (V) 1 0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 -35 -25 -15 -5 5 15 INPUT POWER (dBm) TA = +85C TA = -40C TA = +25C
MAX4000 toc36
4 3 2 1 0 -1 -2 -3
TA = +85C TA = +25C TA = -40C -40 -30 -20 -10 0 10
-1 -2 -3 -4 20
-4 25
INPUT POWER (dBm)
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2.5GHz 45dB RF-Detecting Controllers MAX4000/MAX4001/MAX4002
Typical Operating Characteristics (continued)
(VCC = 3V, SHDN = VCC, TA = +25C, unless otherwise specified.)
MAX4001 LOG SLOPE vs. FREQUENCY (MAX)
MAX4000 toc37 MAX4000 toc38
MAX4000 LOG SLOPE vs. FREQUENCY (MAX)
31 30 TA = +85C LOG SLOPE (mV/dB) 29 TA = +25C 28 27 26 25 25 24 0 0.5 1.0 1.5 2.0 2.5 FREQUENCY (GHz) 24 23 0 TA = -40C 32 31 30 LOG SLOPE (mV/dB) 29 28 27 26
MAX4002 LOG SLOPE vs. FREQUENCY (MAX)
32 31 LOG SLOPE (mV/dB) 30 29 28 27 26 25 24 TA = -40C TA = +25C TA = +85C
MAX4000 toc39
33
TA = +85C
TA = +25C
TA = -40C
0.5
1.0
1.5
2.0
2.5
0
0.5
1.0
1.5
2.0
2.5
FREQUENCY (GHz)
FREQUENCY (GHz)
MAX4000 LOG SLOPE vs. FREQUENCY (UCSP)
MAX4000 toc40
MAX4001 LOG SLOPE vs. FREQUENCY (UCSP)
MAX4000 toc41
MAX4002 LOG SLOPE vs. FREQUENCY (UCSP)
31 TA = +85C LOG SLOPE (mV/dB) 30 TA = +25C 29 TA = -40C 28 27 26 25 24
MAX4000 toc42
31 30 LOG SLOPE (mV/dB) 29 TA = +85C 28 27 26 25 TA = -40C 24 0 0.5 1.0 1.5 2.0 TA = +25C
32 31 30 LOG SLOPE (mV/dB) 29 28 27 26 25 24 23 TA = +85C TA = +25C TA = -40C
32
2.5
0
0.5
1.0
1.5
2.0
2.5
0
0.5
1.0
1.5
2.0
2.5
FREQUENCY (GHz)
FREQUENCY (GHz)
FREQUENCY (GHz)
MAX4000 LOG SLOPE vs. VCC (MAX)
MAX4000 toc43
MAX4001 LOG SLOPE vs. VCC (MAX)
MAX4000 toc44
MAX4002 LOG SLOPE vs. VCC (MAX)
33 32 LOG SLOPE (mV/dB) 31 30 29 28 27 26
0.1GHz
2.5GHz 31 LOG SLOPE (mV/dB) 30 29 28 27 26 25 0.1GHz 24 2.5 3.0 3.5 4.0 VCC (V) 4.5 5.0 0.9GHz 1.9GHz
31 LOG SLOPE (mV/dB) 30 29 28 27 26 25 24 2.5 3.0
2.5GHz
2.5GHz 1.9GHz
1.9GHz
0.9GHz
0.1GHz
25 24 5.0 5.5 2.5 3.0 3.5 4.0 VCC (V) 4.5
0.9GHz 5.0 5.5
5.5
3.5
4.0 VCC (V)
4.5
8
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MAX4000 toc45
32
32
34
2.5GHz 45dB RF-Detecting Controllers
Typical Operating Characteristics (continued)
(VCC = 3V, SHDN = VCC, TA = +25C, unless otherwise specified.)
MAX4000 LOG SLOPE vs. VCC (UCSP)
MAX4000 toc46
MAX4000/MAX4001/MAX4002
MAX4001 LOG SLOPE vs. VCC (UCSP)
MAX4000 toc47
MAX4002 LOG SLOPE vs. VCC (UCSP)
2.5GHz 31 LOG SLOPE (mV/dB)
MAX4000 toc48
32 31 LOG SLOPE (mV/dB) 30 29 28 27 26 25 24 2.5 3.0 3.5 4.0 VCC (V) 4.5 5.0 0.9GHz 1.9GHz 0.1GHz 2.5GHz
33 2.5GHz 31 LOG SLOPE (mV/dB)
33
29 1.9GHz 27 0.1GHz
29 1.9GHz 27 0.1GHz
25 0.9GHz 23 5.5 2.5 3.0 3.5 4.0 VCC (V) 4.5 5.0 5.5
25 0.9GHz 23 2.5 3.0 3.5 4.0 VCC (V) 4.5 5.0 5.5
MAX4000 LOG INTERCEPT vs. FREQUENCY (MAX)
MAX4000 toc49
MAX4001 LOG INTERCEPT vs. FREQUENCY (MAX)
MAX4000 toc50
MAX4002 LOG INTERCEPT vs. FREQUENCY (MAX)
MAX4000 toc51
-50 -51 -52 LOG INTERCEPT (dBm) -53 -54 -55 -56 -57 -58 -59 0 0.5 1.0 1.5 2.0 TA = -40C TA = +85C TA = +25C
-39 -40 -41 LOG INTERCEPT (dBm) -42 -43 -44 -45 -46 -47 -48 -49 TA = -40C TA = +85C TA = +25C
-32 -34 LOG INTERCEPT (dBm) TA = +85C -36 -38 -40 -42 -44 -46 TA = -40C TA = +25C
2.5
0
0.5
1.0
1.5
2.0
2.5
0
0.5
1.0
1.5
2.0
2.5
FREQUENCY (GHz)
FREQUENCY (GHz)
FREQUENCY (GHz)
MAX4000 LOG INTERCEPT vs. FREQUENCY (UCSP)
MAX4000 toc52
MAX4001 LOG INTERCEPT vs. FREQUENCY (UCSP)
MAX4000 toc53
MAX4002 LOG INTERCEPT vs. FREQUENCY (UCSP)
MAX4000 toc54
-55 -56 LOG INTERCEPT (dBm) -57 -58 TA = +25C -59 TA = +85C -60 TA = -40C -61 0 0.5 1.0 1.5 2.0
-40 -42 LOG INTERCEPT (dBm) -44 -46 -48 -50 TA = +85C -52 TA = -40C 1.0 1.5 2.0 TA = +25C
-32 -34 LOG INTERCEPT (dB) -36 -38 -40 -42 -44 TA = +85C -46 TA = -40C 1.5 2.0 TA = +25C
2.5
0
0.5
2.5
0
0.5
1.0
2.5
FREQUENCY (GHz)
FREQUENCY (GHz)
FREQUENCY (GHz)
_______________________________________________________________________________________
9
2.5GHz 45dB RF-Detecting Controllers MAX4000/MAX4001/MAX4002
Typical Operating Characteristics (continued)
(VCC = 3V, SHDN = VCC, TA = +25C, unless otherwise specified.)
MAX4002 LOG INTERCEPT vs. VCC (MAX)
MAX4000 toc56
MAX4000 LOG INTERCEPT vs. VCC (MAX)
-50 -51 LOG INTERCEPT (dBm) -52 -53 -54 -55 -56 -57 -58 -59 -60 2.5 3.0 3.5 4.0 VCC (V) 4.5 5.0 5.5 0.9GHz -50 2.5
0.1GHz
MAX4000 toc55
MAX4001 LOG INTERCEPT vs. VCC (MAX)
-36 -38 2.5GHz LOG INTERCEPT (dBm) -40 -42 -44 -46
0.1GHz
-35 LOG INTERCEPT (dBm) -37 -39
0.1GHz
2.5GHz
2.5GHz
1.9GHz
-41 -43 -45 1.9GHz
1.9GHz
-48 0.9GHz
0.9GHz -47 3.5 4.0 VCC (V) 4.5 5.0 5.5 2.5 3.0 3.5 4.0 VCC (V) 4.5 5.0 5.5
3.0
MAX4000 LOG INTERCEPT vs. VCC (UCSP)
MAX4000 toc58
MAX4001 LOG INTERCEPT vs. VCC (UCSP)
MAX4000 toc59
MAX4002 LOG INTERCEPT vs. VCC (UCSP)
MAX4000 toc60
-55 -56 LOG INTERCEPT (dBm) -57 -58 -59 -60 -61 2.5 3.0 3.5 4.0 VCC (V) 4.5 5.0 0.1GHz 0.9GHz 2.5GHz
-40 -42 LOG INTERCEPT (dBm) -44 -46 1.9GHz -48 0.1GHz -50 0.9GHz -52 2.5GHz
-34 -36 LOG INTERCEPT (dBm) 2.5GHz -38 -40 0.1GHz -42 1.9GHz -44 0.9GHz -46
1.9GHz
5.5
2.5
3.0
3.5
4.0 VCC (V)
4.5
5.0
5.5
2.5
3.0
3.5
4.0 VCC (V)
4.5
5.0
5.5
MAX4000 INPUT IMPEDANCE vs. FREQUENCY (MAX)
2500 X 2000 RESISTANCE () FREQUENCY (GHz) R JX 0.1 2100 -794 0.9 500 -91 1.9 52 -35 2.5 27 -366
MAX4000 toc61
MAX4001 INPUT IMPEDANCE vs. FREQUENCY (MAX)
0 -100 -200 RESISTANCE () REACTANCE () -300 -400 -500 -600 2000 FREQUENCY (GHz) R JX 0.1 2144 -1205 0.9 959 -121 1.9 104 -36 2.5 47 -29 2500 X
MAX4000 toc62
MAX4002 INPUT IMPEDANCE vs. FREQUENCY (MAX)
0 -100 2000 -200 RESISTANCE () REACTANCE () -300 -400 -500 -600 1500 FREQUENCY (GHz) R JX 0.1 2309 -1137 0.9 943 -120 1.9 129 -36 2.5 30 -26 2500 X
MAX4000 toc63
MAX4000 toc58
-49
-33
0 -100 -200 -300 -400 -500 -600 REACTANCE ()
1500
1500
1000
1000
1000
500 R 0 0 0.5 1.0 1.5 2.0 2.5 FREQUENCY (GHz) -700 -800
500
R
500
-700 -800 0 0 0.5 1.0
R
-700 -800 1.5 2.0 2.5
0 0 0.5 1.0 1.5 2.0 2.5 FREQUENCY (GHz)
FREQUENCY (GHz)
10
______________________________________________________________________________________
2.5GHz 45dB RF-Detecting Controllers
Typical Operating Characteristics (continued)
(VCC = 3V, SHDN = VCC, TA = +25C, unless otherwise specified.)
MAX4000 INPUT IMPEDANCE vs. FREQUENCY (UCSP)
2500 X 2000 RESISTANCE () FREQUENCY (GHz) R JX 0.1 1916 -839 0.9 909 -125 1.9 228 -48 2.5 102 -29
MAX4000 toc64
MAX4000/MAX4001/MAX4002
MAX4001 INPUT IMPEDANCE vs. FREQUENCY (UCSP)
0 -100 -200 RESISTANCE () -300 -400 -500 REACTANCE () 2000 FREQUENCY (GHz) R JX 0.1 1942 -927 0.9 1009 -136 1.9 314 -57 2.5 139 -37 2500 X
MAX4000 toc65
0 -100 -200 REACTANCE () -300 -400 -500 -600 -700
1500
1500
1000 R
1000 R
-600 -700
500
500
-800 -900
0 0 0.5 1.0 1.5 2.0 2.5 FREQUENCY (GHz)
-800
0 0 0.5 1.0 1.5 2.0 2.5 FREQUENCY (GHz)
-1000
MAX4002 INPUT IMPEDANCE vs. FREQUENCY (UCSP)
2500 X 2000 RESISTANCE () FREQUENCY (GHz) R JX 0.1 1961 -1137 0.9 1130 -120 1.9 315 -36 2.5 163 -26
MAX4000 toc66
SUPPLY CURRENT vs. SHDN VOLTAGE
-100 -200 REACTANCE () -300 -400 -500 -600 -700 SUPPLY CURRENT (mA) 5 4 3 2 1 1.2V 0 -1 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 SHDN (V) VCC = 5.5V 6
MAX4000 toc67
0
7
1500
1000
500
R
-800 -900
0 0 0.5 1.0 1.5 2.0 FREQUENCY (GHz)
-1000 2.5
SHDN POWER-ON DELAY RESPONSE TIME
MAX4000 toc68
SHDN RESPONSE TIME
MAX4000 toc69
SHDN 5s
1.5V/div
SHDN
1.5V/div
OUT
500mV/div
OUT
500mV/div
2s/div
2s/div
______________________________________________________________________________________
11
2.5GHz 45dB RF-Detecting Controllers MAX4000/MAX4001/MAX4002
Typical Operating Characteristics (continued)
(VCC = 3V, SHDN = VCC, TA = +25C, unless otherwise specified.)
MAXIMUM OUT VOLTAGE vs. VCC BY LOAD CURRENT
5.0 0 OUT VOLTAGE (V) 4.5 4.0 10mA 3.5 3.0 2.5 1 100 1k 10k 100k 1M 10M FREQUENCY (Hz) 2.0 2.5 3.0 3.5 4.0 VCC (V) 4.5 5.0 5.5 5mA
MAX4000 toc71
MAIN OUTPUT NOISE SPECTRAL DENSITY
NOISE SPECTRAL DENSITY (nV/HZ) 10 9 8 7 6 5 4 3 2
MAX4000 toc70
5.5
Pin Description
PIN MAX 1 2 3 4 5 6 7 8 UCSP A1 A2 A3 B3 C3 -- C2 B1, C1 NAME RFIN SHDN SET CLPF GND N.C. OUT VCC RF Input Shutdown. Connect to VCC for normal operation. Set-Point Input for Controller Mode Operation Lowpass Filter Connection. Connect external capacitor between CLPF and GND to set control-loop bandwidth. Ground No Connection. Not internally connected. Output to PA Gain-Control Pin Supply Voltage. VCC = 2.7V to 5.5V. FUNCTION
12
______________________________________________________________________________________
2.5GHz 45dB RF-Detecting Controllers MAX4000/MAX4001/MAX4002
ANTENNA
SHDN VCC OUTPUT ENABLE DELAY + gm X1 OUT
POWER AMPLIFIER XX RF INPUT
DET RFIN 10dB
DET
DET
DET
DET
50
CLPF
RFIN VCC DAC SHDN SET CLPF CF
MAX4000
VCC OUT N.C. GND
VCC 0.1F
10dB
10dB
10dB V-I SET LOWNOISE BANDGAP
OFFSET COMP GND (PADDLE)
MAX4000
Figure 1. Functional Diagram
Figure 2. Controller Mode Application Circuit Block
Detailed Description
The MAX4000/MAX4001/MAX4002 family of logarithmic amplifiers (log amps) is comprised of four main amplifier/limiter stages each with a small-signal gain of 10dB. The output stage of each amplifier is applied to a fullwave rectifier (detector). A detector stage also precedes the first gain stage. In total, five detectors each separated by 10dB, comprise the log amp strip. Figure 1 shows the functional diagram of the log amps. A portion of the PA output power is coupled to RFIN of the log amp controller, and is applied to the log amp strip. Each detector cell outputs a rectified current and all cell currents are summed and form a logarithmic output. The detected output is applied to a high-gain gm stage, which is buffered and then applied to OUT. OUT is applied to the gain-control pin of the PA to close the control loop. The voltage applied to SET determines the output power of the PA in the control loop. The voltage applied to SET relates to an input power level determined by the log amp detector characteristics. Extrapolating a straight-line fit of the graph of SET vs. RFIN provides the logarithmic intercept. Logarithmic slope, the amount SET changes for each dB change of RF input, is generally independent of waveform or termination impedance. The MAX4000/MAX4001/ MAX4002 slope at low frequencies is about 25mV/dB. Variance in temperature and supply voltage does not alter the slope significantly as shown in the Typical Operating Characteristics. The MAX4000/MAX4001/MAX4002 are specifically designed for use in PA control applications. In a control loop, the output starts at approximately 2.9V (with supply voltage of 3V) for the minimum input signal and falls to a value close to ground at the maximum input. With a portion of the PA output power coupled to RFIN, apply a voltage to SET and connect OUT to the gain-control pin of the PA to control its output power. An external
capacitor from the CLPF pin to ground sets the bandwidth of the PA control loop.
Transfer Function
Logarithmic slope and intercept determine the transfer function of the MAX4000/MAX4001/MAX4002 family of log amps. The change in SET voltage per dB change in RF input defines the logarithmic slope. Therefore, a 10dB change in RF input results in a 250mV change at SET. The Log-Conformance plots (see Typical Operating Characteristics) show the dynamic range of the log amp family. Dynamic range is the range for which the error remains within a band of 1dB. The intercept is defined as the point where the linear response, when extrapolated, intersects the y-axis of the Log-Conformance plot. Using these parameters, the input power can be calculated at any SET voltage level within the specified input range with the following equation: SET RFIN = + IP SLOPE where SET is the set-point voltage, SLOPE is the logarithmic slope (V/dB), RFIN is in either dBm or dBV and IP is the logarithmic intercept point utilizing the same units as RFIN.
Applications Information
Controller Mode
Figure 2 provides a circuit example of the MAX4000/ MAX4001/MAX4002 configured as a controller. The MAX4000/MAX4001/MAX4002 require a 2.7V to 5.5V supply voltage. Place a 0.1F low-ESR, surface-mount ceramic capacitor close to VCC to decouple the supply. Electrically isolate the RF input from other pins (especially SET) to maximize performance at high frequencies (especially at the high-power levels of the MAX4002). The MAX4000 has an internal input-coupling capacitor
13
______________________________________________________________________________________
2.5GHz 45dB RF-Detecting Controllers MAX4000/MAX4001/MAX4002
and does not require external AC-coupling. Achieve 50 input matching by connecting a 50 resistor between RFIN and ground. See the Typical Operating Characteristics section for a plot of Input Impedance vs. Frequency. See the Additional Input Coupling section for other coupling methods. The MAX4000/MAX4001/MAX4002 log amps function as both the detector and controller in power-control loops. Use a directional coupler to couple a portion of the PA's output power to the log amp's RF input. In applications requiring dual-mode operation where there are two PAs and two directional couplers, passively combine the outputs of the directional couplers before applying to the log amp. Apply a set-point voltage to SET from a controlling source (usually a DAC). OUT, which drives the automatic gain-control pin of the PA, corrects any inequality between the RF input level and the corresponding set-point level. This is valid assuming the gain control of the variable gain element is positive, such that increasing OUT voltage increases gain. OUT voltage can range from 150mV to within 250mV of the supply rail while sourcing 10mA. Use a suitable load resistor between OUT and GND for PA control inputs that source current. The Typical Operating Characteristics section has a plot of the sourcing capabilities and output swing of OUT.
GAIN (dB)
GAIN AND PHASE vs. FREQUENCY
80 60 40 20 0 -20 -40 -60 -80 -100 10 100 1k 10k 100k 1M FREQUENCY (Hz) CF = 2000pF CF = 200pF CF = 200pF GAIN CF = 2000pF
MAX4000 fig03
180 135 90 45 0 -45 -90 -135 PHASE (DEGREES)
PHASE
-180
-225 10M 100M
Figure 3. Gain and Phase vs. Frequency Graph
Filter Capacitor and Transient Response
In general, the choice of filter capacitor only partially determines the time-domain response of a PA control loop. However, some simple conventions can be applied to affect transient response. A large filter capacitor, CF, dominates time-domain response, but the loop bandwidth remains a factor of the PA gaincontrol range. The bandwidth is maximized at power outputs near the center of the PA's range, and minimized at the low and high power levels, where the slope of the gain-control curve is lowest. A smaller valued CF results in an increased loop bandwidth inversely proportional to the capacitor value. Inherent phase lag in the PA's control path, usually caused by parasitics at the OUT pin, ultimately results in the addition of complex poles in the AC loop equation. To avoid this secondary effect, experimentally determine the lowest usable CF for the power amplifier of interest. This requires full consideration to the intricacies of the PA control function. The worst-case condition, where the PA output is smallest (gain function is steepest), should be used because the PA control function is typically nonlinear. An additional zero can be added to improve loop dynamics by placing a resistor in series with CF. See Figure 3 for the gain and phase response for different CF values.
SHDN and Power-On
The MAX4000/MAX4001/MAX4002 can be placed in shutdown by pulling SHDN to ground. SHDN reduces supply current to typically 13A. A graph of SHDN Response is included in the Typical Operating Characteristics section. Connect SHDN and V CC together for continuous on-operation.
Power Convention
Expressing power in dBm, decibels above 1mW, is the most common convention in RF systems. Log amp input levels specified in terms of power are a result of following common convention. Note that input power does not refer to power, but rather to input voltage relative to a 50 impedance. Use of dBV, decibels with respect to a 1VRMS sine wave, yields a less ambiguous result. The dBV convention has its own pitfalls in that log amp response is also dependent on waveform. A complex input such as CDMA does not have the exact same output response as the sinusoidal signal. The MAX4000/MAX4001/MAX4002 performance specifications are in both dBV and dBm, with equivalent dBm levels for a 50 environment. To convert dBV values into dBm in a 50 network, add 13dB.
Additional Input Coupling
There are three common methods for input coupling: broadband resistive, narrowband reactive, and series attenuation. A broadband resistive match is implemented by connecting a resistor to ground at RFIN as shown in Figure 4a. A 50 resistor (use other values for different input impedances) in this configuration in parallel with the input impedance of the MAX4000 presents an input
14
______________________________________________________________________________________
2.5GHz 45dB RF-Detecting Controllers
impedance of approximately 50. See the Typical Operating Characteristics for the input impedance plot to determine the required external termination at the frequency of interest. The MAX4001/MAX4002 require an additional external coupling capacitor in series with the RF input. As the operating frequency increases over 2GHz, input impedance is reduced, resulting in the need for a larger-valued shunt resistor. Use a Smith Chart for calculating the ideal shunt resistor value. For high frequencies, use narrowband reactive coupling. This implementation is shown in Figure 4b. The matching components are drawn as reactances since these can be either capacitors or inductors depending on the input impedance at the desired frequency and available standard value components. A Smith Chart is used to obtain the input impedance at the desired frequency and then matching reactive components are chosen. Table 1 provides standard component values at some common frequencies for the MAX4001. Note that these inductors must have a high SRF (self-resonant frequency), much higher than the intended frequency of operation to implement this matching scheme. Device sensitivity is increased by the use of a reactive matching network, because a voltage gain occurs before being applied to RFIN. The associated gain is calculated with the following equation: Voltage GaindB = 20 log10 R2 R1
MAX4000/MAX4001/MAX4002
50 SOURCE 50 CC** RFIN RS 50 CC*
MAX4000 MAX4001 MAX4002
CIN
RIN
VCC *MAX4000 ONLY INTERNALLY COUPLED **MAX4001/MAX4002 REQUIRE EXTERNAL COUPLING
Figure 4a. Broadband Resistive Matching
50 SOURCE 50 jX1 CC** RFIN CC*
MAX4000 MAX4001 MAX4002
jX2
CIN
RIN
where R1 is the source impedance to which the device is being matched, and R2 is the input resistance of the device. The gain is the best-case scenario for a perfect match. However, component tolerance and standard value choice often result in a reduced gain. Figure 4c demonstrates series attenuation coupling. This method is intended for use in applications where the RF input signal is greater than the input range of the device. The input signal is thus resistively divided by the use of a series resistor connected to the RF source. Since the MAX4000/MAX4001/MAX4002 log amps offer a wide selection of RF input ranges, series attenuation coupling is not needed for typical applications.
VCC *MAX4000 ONLY INTERNALLY COUPLED **MAX4001/MAX4002 REQUIRE EXTERNAL COUPLING
Figure 4b. Narrowband Reactive Matching
MAX4000 MAX4001 MAX4002
STRIPLINE RATTN CC** RFIN CC*
Table 1. Suggested Components for MAX4001 Reactive Matching Network
FREQUENCY (GHz) 0.9 1.9 2.5 jX1 (nH) 38 4.4 -- jX2 (nH) 47 4.7 1.8 VOLTAGE GAIN (dB) 12.8 3.2 -0.3
*MAX4000 ONLY INTERNALLY COUPLED **MAX4001/MAX4002 REQUIRE EXTERNAL COUPLING
CIN
RIN
VCC
Figure 4c. Series Attenuation Network 15
______________________________________________________________________________________
2.5GHz 45dB RF-Detecting Controllers MAX4000/MAX4001/MAX4002
Waveform Considerations
The MAX4000/MAX4001/MAX4002 family of log amps respond to voltage, not power, even though input levels are specified in dBm. It is important to realize that input signals with identical RMS power but unique waveforms results in different log amp outputs. Differing signal waveforms result in either an upward or downward shift in the logarithmic intercept. However, the logarithmic slope remains the same.
TOP VIEW
RFIN SHDN SET CLPF 1 2 3 4 8 VCC OUT N.C. GND
Pin Configurations
MAX4000 MAX4001 MAX4002 MAX
7 6 5
Layout Considerations
As with any RF circuit, the layout of the MAX4000/ MAX4001/MAX4002 circuits affects performance. Use a short 50 line at the input with multiple ground vias along the length of the line. The input capacitor and resistor should both be placed as close to the IC as possible. VCC should be bypassed as close as possible to the IC with multiple vias connecting the capacitor to the ground plane. It is recommended that good RF components be chosen for the desired operating frequency range. Electrically isolate RF input from other pins (especially SET) to maximize performance at high frequencies (especially at the high power levels of the MAX4002).
TOP VIEW (BUMPS ON BOTTOM)
1
2
3
A
RFIN
SHDN
SET
B
VCC
MAX4000 MAX4001 MAX4002
OUT
CLPF
C
VCC
GND
UCSP
UCSP Reliability
The UCSP represents a unique package that greatly reduces board space compared to other packages. UCSP reliability is integrally linked to the user's assembly methods, circuit board material, and usage environment. The user should closely review these areas when considering use of a UCSP. This form factor may not perform equally to a packaged product through traditional mechanical reliability tests. Performance through operating life test and moisture resistance remains uncompromised as it is primarily determined by the wafer fabrication process. Mechanical stress performance is a greater consideration for a UCSP. UCSP solder joint contact integrity must be considered since the package is attached through direct solder contact to the user's PC board. Testing done to characterize the UCSP reliability performance shows that it is capable of performing reliably through environmental stresses. Results of environmental stress tests and additional usage data and recommendations are detailed in the UCSP application note, which can be found on Maxim's website, www.maxim-ic.com.
Chip Information
TRANSISTOR COUNT: 358 PROCESS: Bipolar
16
______________________________________________________________________________________
2.5GHz 45dB RF-Detecting Controllers
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.)
MAX4000/MAX4001/MAX4002
______________________________________________________________________________________
9LUCSP, 3x3.EPS
17
2.5GHz 45dB RF-Detecting Controllers MAX4000/MAX4001/MAX4002
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.)
8
4X S
8
INCHES DIM A A1 A2 b c D e E H MIN 0.002 0.030 MAX 0.043 0.006 0.037
MILLIMETERS MAX MIN 0.05 0.75 1.10 0.15 0.95
y 0.500.1 0.60.1
E
H
1
0.60.1
1
D
L
S
BOTTOM VIEW
0.014 0.010 0.007 0.005 0.120 0.116 0.0256 BSC 0.120 0.116 0.198 0.188 0.026 0.016 6 0 0.0207 BSC
0.25 0.36 0.13 0.18 2.95 3.05 0.65 BSC 2.95 3.05 4.78 5.03 0.41 0.66 0 6 0.5250 BSC
TOP VIEW
A2
A1
A
e
c b L
SIDE VIEW
FRONT VIEW
PROPRIETARY INFORMATION TITLE:
PACKAGE OUTLINE, 8L uMAX/uSOP
APPROVAL DOCUMENT CONTROL NO. REV.
21-0036
J
1 1
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
18 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 2002 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
8LUMAXD EPS

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