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PI5A100
Precision, Wide-Bandwidth Quad SPDT Analog Switch
Features
* Single Supply Operation (+2V to +6V) * Rail-to-Rail Analog Signal Dynamic Range * Low On-Resistance (6 typ with 5V supply) Minimizes Distortion and Error Voltages * On-Resistance Matching Between Channels, 0.4 Typ. * On-Resistance Flatness, <2 Typ. * Low Charge Injection Reduces Glitch Errors, Q = 6pC Typ. * Replaces Mechanical Relays * High Speed. tON, 8ns Typ. * Low Crosstalk: -100dB @ 10 MHz * Low Off-Isolation: -57dB @ 10 MHz * Wide -3dB Bandwidth: 230 MHz * High-Current Channel Capability: >100mA * TTL/CMOS Logic Compatible * Low Power Consumption (0.5W typ.) * Packaging (Pb-free & Green Available): -16-pin QSOP (Q) -16-pin SOIC (W)
Description
The PI5A100 is an improved Quad Single-pole double-throw (4SPDT) CMOS analog switch designed to operate with a single +2V to +6V power supply. The EN pin may be used to place all switches in a high-impedance state. This high precision device is ideal for low-distortion audio, video, and data switching and routing. Each switch conducts current equally well in either direction when on. In the off state each switch blocks voltages up to the power-supply rails. The PI5A100 is fully specified with +5V, and +3.3V supplies. With +5V, it guarantees less than 10 On-Resistance. On-Resistance matching between channels is within 2. On-Resistance flatness is less than 4 over the specified range. The PI5A100 guarantees fast switching speeds (tON < 12ns). The PI5A100 is available in the narrow-body SOIC and QSOP packages for operation over the industrial (-40C to +85C) temperature range.
Applications
* Audio, Video Switching and Routing * LAN Switches * Telecommunication Systems * Battery-Powered Systems
Block Diagram, Pin Configuration
IN 1 NC1 2 NO1 3 COM1 4 NC2 5
Decoder
16 VCC 15 EN 14 NC4 13 NO4 12 COM4 11 NC3 10 NO3 9 COM3
Truth Table
EN 0 0 1 IN 0 1 X ON Switch NC1, NC2, NC3, NC4 NO1, NO2, NO3, NO4 None. Disabled
NO2 6 COM2 7 GND 8
Notes: 1. Switches shown for logic "0" input. 2. NC = Normally Closed; NO = Normally Open
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PI5A100 Precision, Wide-Bandwidth, Quad SPDT Analog Switch Absolute Maximum Ratings
Voltages Referenced to Gnd VCC ........................................................................-0.5V to +7V VIN, VCOM, VNC, VNO (1) ..............................-0.5V to VCC +2V ..................................................or 30mA, whichever occurs first Current (any terminal except COM, NO, NC).................. 30mA Current, COM, NO, NC (pulsed at 1ms, 10% duty cycle) ..................................... 120mA
Thermal Information
Continuous Power Dissipation Narrow SOIC & QSOP (derate 8.7mW/C above +70C) . . . . . . . . . . . . . . . . . 650mW Storage Temperature . . . . . . . . . . . . . . . . . . . . -65C to +150C Lead Temperature (soldering, 10s) . . . . . . . . . . . . . . . . +300C
Notes: 1. Signals on NC, NO, COM, or IN exceeding VCC or GND are clamped by internal diodes. Limit forward diode current to 30mA. 2. Caution: Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions beyond those indicated in the operational sections of this speci fication is not implied.
Electrical Specifications - Single +5V Supply (VCC = +5V 10%, GND = 0V, VINH = 2.4V, VINL = 0.8V)
Parameter Analog Switch Analog Switch Range(1) On-Resistance On-Resistance Match Between Channels(6) On-Resistance Flatness(5) NO or NC OFF Leakage(6) COM OFF Leakage Current(6) COM ON Leakage Current(6) VANALOG RON RON RFLAT(ON) INO(OFF) or INC(OFF) ICOM(OFF) ICOM(ON) VCC = 4.5V, ICOM = -30mA, VNO or VNC = +2.5V VCC = 5V, ICOM = -30mA, VNO or VNC = +2.5V VCC = 5.5C, ICOM = 0V, VNO or VNC = 4.5V VCC = 5.5V, ICOM = 4.5V, VNO or VNC = 4.5V VCC = 5.5V, ICOM = 4.5V, VNO or VNC = 4.5V Full 25 Full 25 Full 25 Full 25 Full 25 Full 25 Full -80 -80 0.016 -80 0.01 0.07 2 0.8 0 8 Symbol TestConditions Temp. Min.(1) Typ.(2)
Max.(1)
Units
VCC 10 12 2 4 3 4 80 80 80
V
nA
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PI5A100 Precision, Wide-Bandwidth, Quad SPDT Analog Switch Electrical Specifications - Single +5V Supply (VCC = +5V 10%, GND = 0V, VINH = 2.4V, VINL = 0.8V) CONTINUED
Parameter Logic Input Input High Voltage Input Low Voltage Input Current with Input Voltage High Input Current with Input Voltage Low Dynamic Turn-On Time Turn-Off Time Charge Injection(3) Off Isolations Crosstalk(8) NC or NO Capacitance COM OFF Capacitance COM ON Capacitance -3db Bandwidth Distortion Supply Power-Supply Postitive Supply Current VCC ICC VCC = 5.5V, VIN = 0V or VCC, all channels on or off Full 2 6 1 V A tON VCC = 5V, See Figure 1 tOFF Q OIRR XTALK C(OFF) CCOM(OFF) CCOM(ON) BW D f = 1kHz, See Figure 6 RL = 50 See Figure 7 RL = 10k Full CL = 1nF, VGEN = 0V, RGEN = 0, See Figure 2 RL = 50, CL = 5pF, f = 10MHz, See Figure 3 RL = 50, CL = 5pF, f = 10MHz, See Figure 4 f=1kHz, See Figure 5 25 Full 25 Full 25 -57 dB -100 8 14 18 230 0.2 MHz % pF 3.5 8 15 20 7 10 10 pC ns VIH VIL IINH IINL Guaranteed logic High Level Guaranteed logic Low Level VIN = 2.4V, all others = 0.8V VIN = 0.8V, all others = 2.4V Full -1 -1 0.005 0.005 Full 2 0.8 1 A 1 V Symbol TestConditions Temp. Min.(1) Typ.(2) Max.(1) Units
Notes: 1. The algebraic convention, where the most negative value is a minimum and the most positive is a maximum, is used in this data sheet. 2. Typical values are for DESIGN AID ONLY, not guaranteed or subject to production testing. 3. Guaranteed by design 4. R = R max - R min 5. Flatness is defined as the difference between the maximum and minimum value of On-Resistance measured. 6. Leakage parameters are 100% tested at maximum rated hot temperature and guaranteed by correlation at +25C. 7. Off Isolation = 20log10 [ VCOM / (VNO or VNC) ]. See figure 3. 8. Between any two switches. See figure 4.-
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PI5A100 Precision, Wide-Bandwidth, Quad SPDT Analog Switch Electrical Specifications - Single +3.3V Supply (VCC = +5V 10%, GND = 0V, VINH = 2.4V, VINL = 0.8V)
Parameter Analog Switch Analog Switch Range(1) On-Resistance On-Resistance Match Between Channels(6) On-Resistance Flatness(5) Dynamic Turn-On Time Turn-Off Time Charge Injection(3) Supply Postitive Supply Current ICC VCC = 3.6V, VIN = 0V or VCC, all channels on or off Full 1 A tON VCC = 5V, See Figure 1 tOFF Q CL = 1nF, VGEN = 0V, RGEN = 0, See Figure 2 25 Full 25 Full 25 5 4.5 14 25 40 12 20 10 pC ns RON RON RFLAT(ON) 25 VCC = 4.5V, ICOM = -30mA, VNO or VNC = +2.5V VCC = 5V, ICOM = -30mA, VNO or VNC = +2.5V Full 25 Full 25 Full 2 4 5 5 0 12 VCC 18 V Symbol TestConditions Temp. Min.(1) Typ.(2)
Max.(1)
Units
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PI5A100 Precision, Wide-Bandwidth, Quad SPDT Analog Switch Typical Operating Characteristics (TA=+25C, unless otherwise noted)
RON vs. VCOM
16
RON vs. VCOM and Temperature
A: TA = 90C B: TA = 25C C: TA = -40C
40
Vcc = +2V
VCC = +5V
12
30
RON
RON
20
+3.3V
8
A B C
10
+5V
4
+7V
0
1 2 3
VCOM (V)
4
5
6
7
0
1
2
3
4
5
Leakage Currents vs. Analog Voltage
20
Leakage Current
10nA
vs. Temperature
16
IA(ON) or IB(ON )
1nA
VCC = +5V
Leakage (pA)
8
100pA
IA(ON) or IB(ON)
Leakage
) ON M( I CO
) FF (O OM IC
10pA
0
1pA
-8
0.1pA
-16 0 1 2 3 4 5 Temperature (C)
0.01pA -40 0
Temperature (C)
40
80
Charge Injection
15
Q-Charge Injection (pC)
vs. Analog Voltage
Crosstalk and Off-Isolation vs. Frequency
-100
10 VCC = 5V 5 VCC = 3.3V
-80
Crosstalk
-60 (dB)
Off Isolation
-40
0
-20 VCC = 5V
-5
0 1 2 4 6 8 10 20 40 60 80 100 200
0
1
2
3 VCOM (V)
4
5
Frequency (MHz)
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PI5A100 Precision, Wide-Bandwidth, Quad SPDT Analog Switch
Insertion Loss vs. Frequency
0 -1 -2
Insertion Loss (dB)
4
Input Switching Threshold
5
vs. Supply Voltage
-3
-5 -6 -7 -8 -9 -10 1
VIN, (V)
-4
-3dB Point
3
2
VCC = +5V R L= 50!
3 30 6 10 Frequency (MHz) 60 100 300
1
0
3
4
VCC (V)
5
6
7
RON vs. VCOM and Single Supply
25 20
t ON, t OFF (ns)
20
Switching Times vs. Temperature
15
15 10 5 0
tON tOFF (ns)
10
tON
5
t ON, t OFF
tOFF
0
3
3.5
4
4.5
5 5.5 V CC (V)
6
6.5
7
-40
0
40
80
120
Temperature (C)
Supply Current vs. Temperature
10 VCC = +5V 1 ICC (nA)
0.1
0.01
0.001 -40
0
40 Temperature (C)
80
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PI5A100 Precision, Wide-Bandwidth, Quad SPDT Analog Switch Test Circuits/Timing Diagrams
+5V
Switch Input +3V*
Vcc NO or NC
COM
VOUT RL 100Ohm CL 15pF
Logic +3V Input 0V
50%
tr <20ns tf <20ns
tOFF
IN
Logic Input GND
Switch Output
VOUT
0V
tON
90%
90%
CL INCLUDES FIXTURE AND STRAY CAPACITANCE RL VOUT = VNO RL + RON
(
)
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE OPPOSITE LOGIC * 1.5V FOR 3.3V SUPPLY
Figure 1. Switching Time
+5V
RGEN
COM
VGEN
.1F
V+ NO or NC
VOUT CL
1nF
VOUT
IN
OFF
VOUT
ON ON
OFF
IN Logic Input
GND
IN
OFF
OFF
Q = (VOUT)(CL)
Figure 2. Charge Injection
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PI5A100 Precision, Wide-Bandwidth, Quad SPDT Analog Switch Test Circuits/Timing Diagrams (continued)
10nF
+5V
10nF +5V
COM
V+
Signal Generator 0dBm
COM1
V+
N01
50Ohm
50Ohm
COM
Analyzer NC or NO
IN
0V or 2.4V
Analyzer
0V or 2.4V
IN
COM
COM2
N02 EN
NC
10Ohm
GND
EN
GND
50Ohm
50Ohm
Figure 3. Off Isolation
+5V
Figure 4. Crosstalk
+5V
10nF
10nF
COM
Capacitance Meter
V+
IN
NC or NO
0V or 2.4V
Capacitance Meter
f = 1kHz
COM
V+
IN
0V or 2.4V
f = 1MHz
NC or NO
GND
EN
GND
EN
Figure 5. Channel-Off Capacitance
Figure 6. Channel-On Capacitance
10nF
+5V
NC or NO
VCC
COM
Vo
RL 10Ohm
Rg = 50Ohm
GND
EN
Figure 7. Bandwidth
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PI5A100 Precision, Wide-Bandwidth, Quad SPDT Analog Switch Applications Information
Overvoltage Protection Proper power-supply sequencing is recommended for all CMOS devices. Do not exceed the absolute maximum ratings, because stresses beyond the listed ratings may cause permanent damage to the devices. Always sequence V+ on first, followed by V-, and then logic inputs. If power-supply sequencing is not possible, add two small signal diodes or two current limiting resistors in series with the supply pins for overvoltage protection (Figure 8). Adding diodes reduces the analog signal range, but low switch resistance and low leakage characteristics are unaffected.
Positive Supply
V+
NO
COM
RGB Switch
Figure 9 illustrates a simple low cost RGB switch. The RGB to-Composite Decoder produces either NTSC or S-VHS video from an RGB source. Asingle PI5A100 selects one of the two video sources to produce either SVHS, Composite or RGB video outputs. The low insertion loss of the PI5A100 eliminates the need for expensive input/output buffers.
Vg V-
Figure 8: Overvoltage protection is accomplished using two external blocking diodes or two current limiting resistors.
SVGA R-G-B RGB to Composite Encoder 4 R G B Sync
+5V
S-Video Connector VGA Connect or R or Luma 0.7V G or Composite 0.714V
Y Composite C Sync Select
PI5A100
B or Chroma 0.28V H-Sync-0.3V Composite Connector
Figure 9: The single PI5A100 is used to select SVHS, VGA or Composite video outputs.
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PI5A100 Precision, Wide-Bandwidth, Quad SPDT Analog Switch Applications Audio Muting Function
Figure 8 shows the PI5A100 in an audio card muting application. The original problem was one of excessive popping/clicking noise appearing when connecting disconnecting external loads, and at power on/off. The PI5A100 performs a muting function by grounding the outputs at power on/off and during the transition time. The 32 headset impedance demands a very low and very flat switchon resistance to reduce THD and signal loss. Paralleling two sections of the PI5A100 produces a Ron of 2.5 with an unsurpassed 0.5 flatness. To handle AC signals it was necessary to power the device with 3V provided by two Zener diodes: Z1 and Z2. The select and Enable control signals are shifted by using twpo 2.5V Zener diodes Z3,Z4 and pull down resistors connected to -3V.
10k Stereo Audio Input From DAC J1 -3V
Z1
Stereo Audio Output
J2 Z3 GND Vcc
Z2
32! -5V +5V
Select
2.5V Z4 2.5V 22k!
Enable
Z1/Z2 - Dual SMT 3.0V Zener
-3V
Figure 10: The PI5A100 momentarily mutes the stereo outputs by connecting them to ground during transition times.
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PI5A100 Precision, Wide-Bandwidth, Quad SPDT Analog Switch Packaging Mechanical: 16-Pin QSOP (Q)
16
.008 0.20 MIN.
.150 .157
3.81 3.99
.008 .013 0.20 0.33
Guage Plane
.010 0.254
1
.189 .197 4.80 5.00
.008 0.203 REF
Detail A
.016 .035 0.41 0.89
.041 1.04 REF
0-6
.015 x 45 0.38
.053 1.35 .069 1.75
SEATING PLANE
0.41 .016 1.27 .050
Detail A
.007 .010
0.178 0.254
.025 BSC 0.635
.008 .012 0.203 0.305
.004 0.101 .010 0.254
.228 .244 5.79 6.19
X.XX DENOTES DIMENSIONS IN MILLIMETERS X.XX
Packaging Mechanical: 16-Pin SOIC (W)
16
.149 .157
3.78 3.99
.0099 .0196
0.25 x 45 0.50
1
.386 .393 9.80 10.00
.0155 .0260 0.393 0.660 REF
0-8
0.41 1.27
.0075 .0098
.016 .050
0.19 0.25
.053 .068
1.35 1.75
SEATING PLANE
.2284 .2440 5.80 6.20
.050 BSC 1.27
.013 .020 0.330 0.508
.0040 0.10 .0098 0.25
X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS
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PI5A100 Precision, Wide-Bandwidth, Quad SPDT Analog Switch Ordering Information
Ordering Code PI5A100W PI5A100Q PI5A100QE Package Code W Q Q 16-pin SOIC 16-pin QSOP Pb-free & Green, 16-pin QSOP Package Description
Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ 2,. Number of Transistors = TBD
Pericom Semiconductor Corporation * 1-800-435-2336 * www.pericom.com
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