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19-1148; Rev 0; 11/96
Quad, Low-Voltage, SPST Analog Switches with Enable
_________________General Description
The MAX4536/MAX4537/MAX4538 are quad, low-voltage, single-pole/single-throw (SPST) analog switches with a common enable pin. They are pin compatible with the industry-standard 74HC4316. The MAX4536 has four normally open (NO) switches, and the MAX4537 has four normally closed (NC) switches. The MAX4538 has two NO switches and two NC switches. These switches operate from a +2V to +12V single supply, or from 2V to 6V dual supplies. On-resistance (200 max) is matched between switches to 4 (max) and is flat (10 max) over the specified signal range. Each switch can handle rail-to-rail analog signals. The off-leakage current is only 1nA at +25C and 10nA at +85C. All digital inputs have 0.8V to 2.4V logic thresholds, ensuring TTL/CMOS-logic compatibility when using a single +5V supply or dual 5V supplies.
______________________________Features
o Pin Compatible with 74HC4316 o 2.0V to 6V Dual Supplies +2.0V to +12V Single Supply o Four Separately Controlled SPST Switches with Common Enable o 100 Signal Paths with Dual 5V Supplies 200 Signal Paths with Single +4.5V Supply o Rail-to-Rail Signal Handling o tON and tOFF = 100ns and 80ns at 4.5V Supply o Less than 1W Power Consumption o >2kV ESD Protection per Method 3015.7 o TTL/CMOS-Compatible Inputs o Small Packages: PDIP, QSOP, Narrow SO
MAX4536/MAX4537/MAX4538
__________________________Applications
Battery-Operated Equipment Low-Voltage Data Acquisition Test Equipment Avionics Portable Equipment Audio-Signal Routing Networking
________________Ordering Information
PART MAX4536CPE MAX4536CSE MAX4536CEE MAX4536C/D MAX4536EPE TEMP. RANGE 0C to +70C 0C to +70C 0C to +70C 0C to +70C -40C to +85C PIN-PACKAGE 16 Plastic DIP 16 Narrow SO 16 QSOP Dice* 16 Plastic DIP
MAX4536ESE -40C to +85C 16 Narrow SO MAX4536EEE -40C to +85C 16 QSOP Ordering Information continued at end of data sheet. *Contact factory for availability.
________________________Pin Configurations/Functional Diagrams/Truth Tables
COM1 1 NO1 2 NO2 3 COM2 4 IN2 5 IN3 6 EN 7 GND 8 16 V+ 15 IN1 14 IN4 13 COM4 12 NO4 11 NO3 10 COM3 9 VCOM1 1 NC1 2 NC2 3 COM2 4 IN2 5 IN3 6 EN 7 GND 8 16 V+ 15 IN1 14 IN4 13 COM4 12 NC4 11 NC3 10 COM3 9 VCOM1 1 NO1 2 NC2 3 COM2 4 IN2 5 IN3 6 EN 7 GND 8 16 V+ 15 IN1 14 IN4 13 COM4 12 NO4 11 NC3 10 COM3 9 V-
MAX4536
DIP/SO/QSOP
MAX4536 EN 0 0 1 IN_ 0 1 X SWITCH_ OFF ON OFF EN 0 0
MAX4537
DIP/SO/QSOP
MAX4537 IN_ 0 1 SWITCH_ ON OFF EN 0 0 1 IN_ 0 1 X
MAX4538
DIP/SO/QSOP
MAX4538 SWITCHES 1, 4 OFF ON OFF SWITCHES 2, 3 ON OFF OFF
1 X OFF SWITCHES SHOWN FOR LOGIC "0" INPUT
________________________________________________________________ Maxim Integrated Products
1
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Quad, Low-Voltage, SPST Analog Switches with Enable MAX4536/MAX4537/MAX4538
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced to GND V+ ........................................................................-0.3V to +13.0V V- .........................................................................-13.0V to +0.3V V+ to V-................................................................-0.3V to +13.0V All Other Pins (Note 1) ..........................(V- - 0.3V) to (V+ + 0.3V) Continuous Current into Any Terminal..............................10mA Peak Current into Any Terminal (pulsed at 1ms,10% duty cycle).....................................20mA ESD per Method 3015.7 ..................................................>2000V Continuous Power Dissipation (TA = +70C) (Note 2) Plastic DIP (derate 10.53mW/C above +70C) ............842mW Narrow SO (derate 8.70mW/C above +70C) ..............696mW QSOP (derate 8.00mW/C above +70C) ......................800mW Operating Temperature Ranges MAX453_C_ E .......................................................0C to +70C MAX453_E_ E ....................................................-40C to +85C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10sec) .............................+300C
Note 1: Signals on NC_, NO_, COM_, EN, or IN_ exceeding V+ or V- are clamped by internal diodes. Limit forward-diode current to maximum current rating. Note 2: All leads are soldered or welded to PC boards.
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--5V Dual Supplies
(V+ = 4.5V to 5.5V, V- = -4.5V to -5.5V, VINH = 2.4V, VINL = 0.8V, V EN = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) PARAMETER ANALOG SWITCH Analog Signal Range COM_ NO_, COM_ NC_ On-Resistance COM_ NO_, COM_ NC_ On-Resistance Match Between Channels (Note 5) COM_ NO_, COM_ NC_ On-Resistance Flatness (Note 6) NO_, NC_ Off-Leakage Current (Note 7) COM_ Off-Leakage Current (Note 7) COM_ On-Leakage Current (Note 7) LOGIC INPUT EN, IN_ Input Logic Threshold High EN, IN_ Input Logic Threshold Low EN, IN_ Input Current Logic High or Low VINH VINL IINH_, IINL_ VIN_ = 0.8V or 2.4V C, E C, E C, E 0.8 -1 1.4 1.4 0.03 1 2.4 V V A VCOM_, VNO_, VNC RON (Note 4) V+ = 4.5V, V- = -4.5V, VCOM_ = 3.5V, ICOM_ = 1mA V+ = 4.5V, V- = -4.5V, VCOM_ = 3.5V, ICOM_ = 1mA C, E +25C C, E +25C C, E 4 -1 -10 -1 -10 -2 -20 0.01 0.01 0.01 1 V55 V+ 100 125 4 6 10 15 1 10 1 10 2 20 nA nA nA V SYMBOL CONDITIONS TA MIN TYP MAX (Note 3) UNITS
RON
RFLAT(ON) INO_(OFF), INC_(OFF) ICOM_(OFF) ICOM_(ON)
+25C V+ = 5.0V, V- = -5.0V, VCOM_ = -3.0V, 0, +3.0V, ICOM_ = 1mA C, E V+ = 5.5V, V- = -5.5V, VCOM_ = 4.5V, VN_ _ = 4.5V V+ = 5.5V, V- = -5.5V, VCOM_ = 4.5V, VN_ _ = 4.5V V+ = 5.5V, V- = -5.5V, VCOM_ = 4.5V, VN_ _ = 4.5V +25C C, E +25C C, E +25C C, E
2
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Quad, Low-Voltage, SPST Analog Switches with Enable
ELECTRICAL CHARACTERISTICS--5V Dual Supplies (continued)
(V+ = 4.5V to 5.5V, V- = -4.5V to -5.5V, VINH = 2.4V, VINL = 0.8V, V EN = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) PARAMETER SYMBOL CONDITIONS TA MIN TYP MAX (Note 3) 35 15 5 5 100 125 50 60 15 1 2 2 6 -65 -75 5 UNITS
MAX4536/MAX4537/MAX4538
SWITCH DYNAMIC CHARACTERISTICS Turn-On Time Turn-Off Time Break-Before-Make Time Delay (MAX4538 Only) Charge Injection (Figure 3) NO_, NC_ Off-Capacitance (Figure 6) COM_ Off-Capacitance (Figure 6) COM_ On-Capacitance (Figure 7) Off-Isolation (Note 8, Figure 4) Channel-to-Channel Crosstalk (Note 9, Figure 5) POWER SUPPLY Power-Supply Range V+ Supply Current V- Supply Current V+, VI+ IV+ = 5.5V, all VIN_ = 0V or V+ V- = -5.5V C, E +25C C, E +25C C, E -6 -1 -10 -1 -10 0.05 0.05 6 1 10 1 10 V A A tON tOFF tBBM Q CN_(OFF) CCOM_(OFF) CCOM_(ON) VISO VCT VCOM_ = 3V, V+ = 4.5V, V- = -4.5V (Figure 1) VCOM_ = 3V, V+ = 4.5V, V- = -4.5V (Figure 1) VCOM_ = 3V, V+ = 5.5V, V- = -5.5V (Figure 2) CL = 1.0nF, VNO_ = 0V, RS = 0 VNO_ = GND, f = 1MHz VCOM_ = GND, f = 1MHz VCOM_ = VNO_ = GND, f = 1MHz RL = 50, CL = 15pF, VN_ = 1VRMS, f = 1MHz RL = 50, CL = 15pF, VN_ = 1VRMS, f = 1MHz +25C C, E +25C C, E +25C +25C +25C +25C +25C +25C +25C ns ns ns pC pF pF pF dB dB
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Quad, Low-Voltage, SPST Analog Switches with Enable MAX4536/MAX4537/MAX4538
ELECTRICAL CHARACTERISTICS--+5V Single Supply
(V+ = 4.5V to 5.5V, V- = 0V, VINH = 2.4V, VINL = 0.8V, V EN = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) PARAMETER ANALOG SWITCH Analog Signal Range COM_ -NO_, COM_ -NC_ On-Resistance COM_ -NO_, COM_ -NC_ On-Resistance Match Between Channels (Note 5) NO_, NC_ Off-Leakage Current (Notes 7, 10) COM_ Off-Leakage Current (Notes 7, 10) COM_ On-Leakage Current (Note 7, 10) LOGIC INPUT EN, IN_ Input Logic Threshold High EN, IN_ Input Logic Threshold Low EN, IN_ Input Current Logic High or Low VINH VINL IINH_, IINL_ VIN_ = 0.8V or 2.4V C, E C, E C, E 0.8 -1 1.4 1.4 0.03 1 2.4 V V A VCOM_, VNO_, VNC RON (Note 4) V+ = 4.5V, VCOM_ = 3.5V, ICOM_ = 1mA V+ = 4.5V, VCOM_ = 3.5V, ICOM_ = 1mA V+ = 5.5V, VCOM_ = 1V, 4.5V, VN_ = +4.5V, 1V V+ = 5.5V, VCOM_ = 1V, 4.5V, VN_ = +4.5V, 1V V+ = 5.5V, VCOM_ = 1V, 4.5V, C, E +25C C, E +25C C, E +25C C, E +25C C, E +25C C, E -1 -10 -1 -10 -2 -20 0.01 0.01 0.01 2 0 90 V+ 200 225 8 10 1 10 1 10 2 20 nA nA nA V SYMBOL CONDITIONS TA MIN TYP MAX (Note 3) UNITS
RON INO_(OFF), INC_(OFF) ICOM_(OFF) ICOM_(ON)
SWITCH DYNAMIC CHARACTERISTICS Turn-On Time Turn-Off Time Break-Before-Make Time Delay Charge Injection (Figure 3) (Note 4) POWER SUPPLY V+ Supply Current I+ V+ = 5.5V, all VIN_ = 0V or V+ +25C C, E -1 -10 0.05 1 10 A tON tOFF tBBM Q VCOM_ = 3V, V+ = 4.5V (Figure 1) VCOM_ = 3V, V+ = 4.5V (Figure 1) MAX4538, VCOM_ = 3V, V+ = 5.5V (Figure 2) CL = 1.0nF, VNO = 0V, RS = 0 +25C C, E +25C C, E +25C +25C +25C 5 25 1 5 50 20 100 125 80 100 ns ns ns pC
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Quad, Low-Voltage, SPST Analog Switches with Enable MAX4536/MAX4537/MAX4538
ELECTRICAL CHARACTERISTICS--+3V Single Supply
(V+ = 2.7V to 3.6V, V- = 0V, VINH = 2.0V, VINL = 0.5V, V EN = 0.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) PARAMETER ANALOG SWITCH Analog Signal Range COM_ -NO_, COM_ -NC_ On-Resistance LOGIC INPUT EN, IN_ Input Logic Threshold High EN, IN_ Input Logic Threshold Low EN, IN_ Input Current Logic High or Low VINH VINL IINH_, IINL_ VIN_ = 0.8V or 2.4V C, E C, E C, E 0.5 -1 0.9 0.9 0.03 1 2.0 V V A VCOM_, VNO_, VNC RON (Note 4) V+ = 2.7V, VCOM_ = 1.5V, ICOM_ = 0.1mA C, E +25C C, E 0 210 V+ 500 600 V SYMBOL CONDITIONS TA MIN TYP MAX (Note 3) UNITS
SWITCH DYNAMIC CHARACTERISTICS (Note 4) Turn-On Time Turn-Off Time Break-Before-Make Time Delay Charge Injection (Figure 3) POWER SUPPLY V+ Supply Current Note 3: Note 4: Note 5: Note 6: I+ V+ = 3.6V, all VIN_ = 0V or V+ +25C C, E -1 -10 0.05 1 10 A tON tOFF tBBM Q VCOM_ = 1.5V, V+ = 2.7V (Figure 1) VCOM_ = 1.5V, V+ = 2.7V (Figure 1) MAX4538, VCOM_ = 1.5V, V+ = 3.6V (Figure 2) CL = 1.0nF, VNO = 0V, RS = 0 +25C C, E +25C C, E +25C +25C +25C 10 40 3 40 80 250 300 100 120 ns ns ns pC
The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column. Guaranteed by design. RON = RON(MAX) - RON(MIN). Resistance flatness is defined as the difference between the maximum and the minimum value of on-resistance as measured over the specified analog-signal range. Note 7: Leakage parameters are 100% tested at maximum rated hot temperature and guaranteed by correlation at TA = +25C. Note 8: Off-isolation = 20log10 [VCOM_ / (VNC_ or VNO_)], VCOM_ = output, VNC_ or VNO_ = input to off switch. Note 9: Between any two switches. Note 10: Leakage testing for single-supply operation is guaranteed by testing with dual supplies.
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Quad, Low-Voltage, SPST Analog Switches with Enable MAX4536/MAX4537/MAX4538
__________________________________________Typical Operating Characteristics
(V+ = +5V, V- = -5V GND = 0V, TA = +25C, unless otherwise noted.)
ON-RESISTANCE vs. VCOM (DUAL SUPPLIES)
MAX4536/7/8 TOC-01
ON-RESISTANCE vs. VCOM AND TEMPERATURE (DUAL SUPPLIES)
75 70 65
MAX4536/37/38 TOC-02
ON-RESISTANCE vs. VCOM (SINGLE SUPPLY)
V+ = 1.5V
MAX4536/7/8 TOC-03
200 180 160 140 RON () V = 3.0V V = 1.5V V = 2.0V V = 2.5V
80 TA = +125C TA = +85C
10,000
1000 RON () V+ = 2.0V V+ = 2.5V 100 V+ = 3.0V V+ = 5.0V
100 80 60 40 20 0
RON ()
120
60 55 50 45 40
TA = +25C
V = 5.0V -5 -4 -3 -2 -1 0 1 2 3 4 5
35 30 -5 -4 -3 -2 -1
TA = -55C 10 0 1 2 3 4 5 0
V+ = 9.0V V- = 0V 1 2 3 4 5 6 7 8 9 10
VCOM (V)
VCOM (V)
VCOM (V)
ON-RESISTANCE vs. VCOM AND TEMPERATURE (SINGLE SUPPLY)
140 130 120 RON () 110 100 90 80 70 60 50 0 1 2 3 4 5 VCOM (V) 0.0001 TA = -55C 0.0010 TA = +25C TA = +125C TA = +85C
MAX4536/37/38 TOC-04
ON/OFF LEAKAGE CURRENT vs. TEMPERATURE
MAX4536/37/38 TOC-05
POWER-SUPPLY CURRENT vs. TEMPERATURE
MAX4536/37/38 TOC-06
150
10
1.0
1.0 LEAKAGE (nA)
0.1 I+, I- (A)
0.1
ON LEAKAGE
0.01 I (V+) 0.001
0.01 OFF LEAKAGE
I (V-) 0.0001
0.00001 -75 -50 -25 0 25 50 75 100 125 150 175 -75 -50 -25 0 25 50 75 100 125 150 TEMPERATURE (C) TEMPERATURE (C)
ON/OFF TIME vs. SUPPLY VOLTAGE (DUAL SUPPLIES)
MAX4536/37/38 TOC-07a
ON/OFF TIME vs. TEMPERATURE
MAX4536/37/38 TOC-08
CHARGE INJECTION vs. VCOM
MAX4536/37/38 TOC-09
100 90 80 tON, tON (ns) 70 60 50 40 30 20 10 2 3 4 SUPPLY VOLTAGE (V) 5 tOFF tON
50
2
40 tON, tOFF (ns)
tON
1 Qj, (pC)
30
DUAL SUPPLIES 0
SINGLE SUPPLY
20 tOFF 10 -1
0 6 -75 -50 -25 0 25 50 75 100 125 150 TEMPERATURE (C)
-2 -5 -4 -3 -2 -1 0 1 2 3 4 5 VCOM (V)
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Quad, Low-Voltage, SPST Analog Switches with Enable
_____________________________Typical Operating Characteristics (continued)
(V+ = +5V, V- = -5V GND = 0V, TA = +25C, unless otherwise noted.)
LOGIC-LEVEL THRESHOLD vs. POSITIVE SUPPLY VOLTAGE
MAX4536/37/38 TOC-11
MAX4536/MAX4537/MAX4538
FREQUENCY RESPONSE
0 -10 -20 -30 LOSS (dB) -40 ON-PHASE -50 -60 -70 -80 -90 -100 0.1 OFF-ISOLATION ON-RESPONSE
MAX4536/7/8 TOC-10
TOTAL HARMONIC DISTORTION vs. FREQUENCY
100
MAX4536/7/8 TOC-12
50 40 30 20 10 0 -10 -20 -30 -40 PHASE (DEGREES) LOGIC-LEVEL THRESHOLD (V)
2.5
2.0 1.5
10 THD (%)
V+ = 5V V- = -5V 5Vp-p SIGNAL 600 IN AND OUT
1
1.0
0.5
0.1
1
10
100
-50 1000
0 0 1 2 3 4 5 6 7 8 9 10 SUPPLY VOLTAGE (V)
0.01 10 100 1k FREQUENCY (Hz) 10k 100k
FREQUENCY (MHz)
______________________________________________________________Pin Description
PIN 1, 4, 10, 13 NAME COM1-COM4 NO1-NO4, or NC1-NC4 IN1-IN4 EN GND VV+ Analog Switch Common* Terminals FUNCTION
2, 3, 11, 12
Analog Switch Normally Open* or Normally Closed* Terminals (see Truth Tables)
5, 6, 14, 15 7 8 9 16
Logic-Control Digital Inputs. Control each switch (see Truth Tables), except when EN is high. Disable Logic Input. Connect logic high to EN to disable (open) all switches. Ground. Connect to digital ground. (Analog signals have no ground reference; they are limited to V+ and V-.) Negative Analog Supply-Voltage Input. Connect V- to GND for single-supply operation. Positive Analog and Digital Supply-Voltage Input. Internally connected to substrate.
*NO_/NC_ and COM_ pins are identical and interchangeable. Either may be considered as an input or an output; signals pass equally well in either direction.
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Quad, Low-Voltage, SPST Analog Switches with Enable MAX4536/MAX4537/MAX4538
__________Applications Information
Power-Supply Considerations
Overview The MAX4536/MAX4537/MAX4538 construction is typical of most CMOS analog switches. These devices have three supply pins: V+, V-, and GND. V+ and V- drive the internal CMOS switches and set the limits of the analog voltage on any switch. Reverse ESD-protection diodes are internally connected between each analog-signal pin, and both V+ and V-. One of these diodes conducts if any analog signal exceeds V+ or V-. These reversebiased ESD diodes leak during normal operation, forming the only current drawn from V+ or V-. Virtually all the analog leakage current is through the ESD diodes. Although the ESD diodes on a given signal pin are identical and therefore fairly well balanced, they are reverse biased differently. Each is biased by either V+ or V- and the analog signal. This means their leakages vary as the signal varies. The difference in the two diode leakages from the signal path to the V+ and V- pins constitutes the analog-signal path leakage current. All analog leakage current flows to the supply terminals, not to the other switch terminal. This explains how both sides of a given switch can show leakage currents of either the same or opposite polarity. There is no connection between the analog-signal paths and GND. The analog-signal paths consist of an N-channel and P-channel MOSFET with their sources and drains paralleled and their gates driven out of phase to V+ and V- by the logic-level translators. V+ and GND power the internal logic and logic-level translators and set the input logic thresholds. The logic-level translators convert the logic levels to switched V+ and V- signals to drive the analog switches' gates. This drive signal is the only connection between the logic supplies and the analog supplies. V+, and V- have ESD-protection diodes to GND. The logic-level inputs have ESD protection to V+ and to V-. Increasing V- has no effect on the logic-level thresholds, but it does increase the drive to the P-channel switches, reducing their on-resistance. V- also sets the negative limit of the analog-signal voltage.
The logic-level thresholds are CMOS/TTL-compatible when V+ is +5V. The threshold increases slightly as V+ is raised. When V+ reaches +12V, the level threshold is about 3.1V, above the TTL output high-level minimum of 2.8V, but still compatible with CMOS outputs.
Bipolar Supplies The MAX4536/MAX4537/MAX4538 operate with bipolar supplies between 2.0V and 6V. The V+ and V- supplies need not be symmetrical, but their sum cannot exceed the absolute maximum rating of 13.0V. Do not connect the MAX4536/MAX4537/MAX4538's V+ to +3V and then connect the logic-level input pins to TTL logic-level signals. TTL logic-level outputs in excess of the absolute maximum ratings can damage the part and/or external circuits.
CAUTION: The absolute maximum V+ to V- differential voltage is 13.0V. Typical 6V or +12V supplies with 10% tolerances can be as high as 13.2V. This voltage can damage the MAX4536/MAX4537/MAX4538. Even 5% tolerance supplies may have overshoot or noise spikes that exceed 13.0V.
Single Supplies The MAX4536/MAX4537/MAX4538 operate from single supplies between +2.0V and +12V when V- is connected to GND. All of the bipolar precautions must be observed.
High-Frequency Performance
In 50 systems, signal response is reasonably flat up to 50MHz (see Typical Operating Characteristics). Above 20MHz, the on-response has several minor peaks that are highly layout dependent. The problem with high-frequency operation is not in turning the switch on, but in turning it off. The off-state switch acts like a capacitor and passes higher frequencies with less attenuation. At 10MHz, off-isolation is about -44dB in 50 systems, becoming worse (approximately 20dB per decade) as frequency increases. Higher circuit impedances also make off-isolation worse. Adjacent channel attenuation is about 3dB above that of a bare IC socket, and is due entirely to capacitive coupling.
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Quad, Low-Voltage, SPST Analog Switches with Enable
______________________________________________Test Circuits/Timing Diagrams
MAX4536 MAX4537 MAX4538
SWITCH INPUT V COM COM V+ V+ NO or NC RL 300 VVSWITCH OUTPUT 0V t ON SWITCH OUTPUT VOUT CL 35pF VOUT LOGIC INPUT +3V 50% 0V t r < 20ns t f < 20ns
MAX4536/MAX4537/MAX4538
IN, EN LOGIC INPUT GND 0V
t OFF
0.9 x V0UT
0.9 x VOUT
CL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL VOUT = VCOM RL + RON
(
)
LOGIC INPUT WAVEFORMS INVERTED FOR EN AND SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE.
Figure 1. Switching Time
V+
MAX4538
VCOM1 = +3V VCOM2 = +3V COM1 COM2 IN LOGIC INPUT GND VVCL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL = 300 CL = 35pF V+ NO1 N02 RL2 VOUT2 CL2 RL1 VOUT1 CL1
LOGIC INPUT
+3V 50% 0V
SWITCH OUTPUT 1 (VOUT1) SWITCH OUTPUT 2 (VOUT2)
0.9 x V0UT1 0V
0.9 x VOUT2 0V tD tD
Figure 2. Break-Before-Make Interval (MAX4538 only)
V+
MAX4536 MAX4537 MAX4538
RGEN COM
VOUT VOUT
V+ NC or NO CL GND IN VVOUT
IN OFF ON OFF
V GEN
VVIN = +3V
IN
OFF
ON Q = (V OUT )(C L )
OFF
IN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
Figure 3. Charge Injection
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Quad, Low-Voltage, SPST Analog Switches with Enable MAX4536/MAX4537/MAX4538
10nF SIGNAL GENERATOR 0dBm V+
MAX4536 MAX4537 MAX4538
SIGNAL GENERATOR 0dBm 0V or 2.4V
10nF
V+
MAX4536 MAX4537 MAX4538
N01 IN2 0V or 2.4V 50
COM
V+
V+ COM1 IN1
IN ANALYZER RL VNC COM or NO GND V-
0V or 2.4V N02 GND RL VCOM2 V10nF
ANALYZER 10nF
NC
Figure 4. Off Isolation
Figure 5. Crosstalk
10nF
V+
MAX4536 MAX4537 MAX4538
10nF
V+
MAX4536 MAX4537 MAX4538
V+ COM CAPACITANCE METER COM
V+
IN CAPACITANCE METER f = 1MHz NC or NO GND V10nF
0V or 2.4V
IN f = 1MHz NC or NO GND V10nF
0V or 2.4V
V-
V-
Figure 6. Channel-Off Capacitance
Figure 7. Channel-On Capacitance
10
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Quad, Low-Voltage, SPST Analog Switches with Enable
__Ordering Information (continued)
PART MAX4537CPE MAX4537CSE MAX4537CEE MAX4537C/D MAX4537EPE MAX4537ESE MAX4537EEE MAX4538CPE MAX4538CSE MAX4538CEE MAX4538C/D MAX4538EPE MAX4538ESE MAX4538EEE TEMP. RANGE 0C to +70C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C 0C to +70C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C PIN-PACKAGE 16 Plastic DIP 16 Narrow SO 16 QSOP Dice* 16 Plastic DIP 16 Narrow SO 16 QSOP 16 Plastic DIP 16 Narrow SO 16 QSOP Dice* 16 Plastic DIP 16 Narrow SO 16 QSOP MAX4536 PIN A B C D NAME NO1 NO2 NO3 NO4
_____________________Chip Topography
A COM1 V+ IN1
MAX4536/MAX4537/MAX4538
IN4 B COM4 COM2 D IN2 C IN3 0.054" (1.37mm)
EN GND V- COM3 0.053" (1.35mm)
*Contact factory for availability.
MAX4537 PIN A B C D NAME NC1 NC2 NC3 NC4
MAX4538 PIN A B C D NAME NO1 NC2 NC3 NO4
TRANSISTOR COUNT: 121 SUBSTRATE IS INTERNALLY CONNECTED TO V+
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11
Quad, Low-Voltage, SPST Analog Switches with Enable MAX4536/MAX4537/MAX4538
________________________________________________________Package Information
DIM INCHES MILLIMETERS MAX MIN MIN MAX 0.068 0.061 1.55 1.73 0.004 0.0098 0.127 0.25 0.061 0.055 1.40 1.55 0.012 0.008 0.20 0.31 0.0075 0.0098 0.19 0.25 SEE VARIATIONS 0.157 0.150 3.81 3.99 0.025 BSC 0.635 BSC 0.244 0.230 5.84 6.20 0.016 0.010 0.25 0.41 0.035 0.016 0.41 0.89 SEE VARIATIONS SEE VARIATIONS 8 0 0 8 DIM PINS D S D S D S D S 16 16 20 20 24 24 28 28 INCHES MILLIMETERS MIN MAX MIN MAX 0.189 0.196 4.80 4.98 0.0020 0.0070 0.05 0.18 0.337 0.344 8.56 8.74 0.0500 0.0550 1.27 1.40 0.337 0.344 8.56 8.74 0.0250 0.0300 0.64 0.76 0.386 0.393 9.80 9.98 0.0250 0.0300 0.64 0.76
21-0055A
D A e B
A1
S
A A1 A2 B C D E e H h L N S
E
H h x 45 A2
N E C L
QSOP QUARTER SMALL-OUTLINE PACKAGE
DIM
D A e B
0.101mm 0.004in.
0-8
A1
C
L
A A1 B C E e H L
INCHES MAX MIN 0.069 0.053 0.010 0.004 0.019 0.014 0.010 0.007 0.157 0.150 0.050 0.244 0.228 0.050 0.016
MILLIMETERS MIN MAX 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 3.80 4.00 1.27 5.80 6.20 0.40 1.27
E
H
Narrow SO SMALL-OUTLINE PACKAGE (0.150 in.)
DIM PINS D D D 8 14 16
INCHES MILLIMETERS MIN MAX MIN MAX 0.189 0.197 4.80 5.00 0.337 0.344 8.55 8.75 0.386 0.394 9.80 10.00
21-0041A
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.
12 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 (c) 1996 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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