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PI5A100
Datasheet (PERICOM)
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Datasheet PI5A100 Datasheet (PERICOM)

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Page 1
PI5A100
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Precision, Wide Bandwidth
4PDT Analog Switch
Product Features
• Single Supply Operation (+2V to +6V)
• Rail-to-Rail Analog Signal Dynamic Range
• Low On-Resistance (6Ω typ with 5V supply)
Minimizes Distortion and Error Voltages
• On-Resistance Flatness, <2 Ω 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 (0.5µW typ.)
• Small QSOP-16 Package Saves Board Area
Applications
• Audio, Video Switching and Routing
• LAN Switches
• Telecommunication Systems
• Battery-Powered Systems
Description
The PI5A100 is an improved four-pole double-throw (4PDT) CMOS analog switch designed to operate with a single +2V to +6V power supply. An 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 10Ω on-resistance. On­resistance matching between channels is within 2Ω. On­resistance flatness is less than 4Ω over the specified range. The PI5A100 guarantees fast switching speeds (tON < 12ns).
The PI5A100 is available in the narrow-body SOIC-16, and QSOP-16 packages for operation over the industrial (-40°C to +85°C) temperature range.
Functional Block Diagram, Pin Configuration and Truth Table
16 15 14 13 12 11 10
9
Vcc EN NC4 NO4 COM4 NC3 NO3 COM3
1
IN NC1 NO1
COM1
NC2
NO2
COM2
GND
2 3 4 5 6 7 8
Switches shown for logic "0" input.
NC = Normally Closed; NO = Normally Open
Decoder
EN IN ON Switch
0 0 NC1, NC2, NC3, NC4 0 1 NO1, NO2, NO3, NO4 1 X None. Disabled
Ordering Information
Part Number Package
PI5A100W Narrow SOIC-16 PI5A100Q QSOP-16
For free samples and the latest literature: www.pericom.com, or phone 1-800-435-2336
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PI5A100
Precision, Wide Bandwidth
4PDT Analog Switch
Absolute Maximum Ratings
Voltages Referenced to Gnd V
....................................................................................................-0.5V to +7V
CC
VIN, V
.................................................or 30mA,
Current (any terminal except COM,NO,NC).......................30mA
Current, COM, NO, NC
, VNC, VNO (Note 1).......................... -0.5V to Vcc +2V
COM
whichever occurs first
Thermal Information
Continuous Power Dissipation Narrow SO & QSOP
(derate 8.7mW/ºC above +70ºC) . . . . . . . . . . . . . . . . . . . . 650mW
Storage Temperature . . . . . . . . . . . . . . . . . . . . -65ºC to +150ºC
Lead Temperature (soldering, 10s) . . . . . . . . . . . . . . . . . +300ºC
(pulsed at 1ms, 10% duty cycle)......................................120mA
Note 1: Signals on NC, NO, COM, or IN exceeding Vcc or Gnd are clamped by internal diodes. Limit forward diode current to 30mA.
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 specification is not implied.
Electrical Specifications - Single +5V Supply
(VCC = +5V ±10%, GND = 0V, V
retemaraPlobmySsnoitidnoC)Cº(pmeTniM
)3(
egnaRhctiwSgolanA
ecnatsiseR-nOR
hctaMecnatsiseR-nO
slennahCneewteB
V
)6(
∆R
ON
ON
= 2.4V, V
INH
GOLANA
V
CC
V
= 0.8V)
INL
I,V5.4=
NO ORVNC
COM
03-=m,A
V5.2+=
)1(
)2(
pyT
)1(
xaM
hctiwSgolanA
lluF0 VCCV
52801
lluF21
528.02
lluF4
stinU
Ω
CC
)5(
ssentalFecnatsiseR-nO
)6(
tnerruC
egakaeLffOMOC
)6(
tnerruC
egakaeLnOMOC
)6(
tnerruC
R
FLAT(ON
)
egakaeLffOCNroON
I
NO(OFF)
I
NC(OFF)
I
COM(OFF
I
COM(ON
)
)
V
V
NO ORVNC
ro
V
CC
V
VI,V5.5=+
V
VI,V5.5=+
V
I,V5=
COM
NO ORVNC
NO ORVNC
NO ORVNC
I,V5.5=
COM
COM
COM
03-=m,A
V4,V5.2,V1=
=V0,
V5.4=
,V5.4+=
V5.4±=
,V5.4+=
V5.4+=
2
5223
lluF4
5270.0
lluF08-08
5210.0
lluF08-08
52610.0
lluF08-08
PS7012C 01/28/98
An
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Electrical Specifications - Single +5V Supply (continued)
(V CC = + 5V ±10%, GND = 0V, V
= 2.4V, V
INH
= 0.8V)
INL
PI5A100
Precision, Wide Bandwidth
4PDT Analog Switch
retemaraPlobmySsnoitidnoC)C°(pmeTniM
tupnIcigoL
egatloVhgiHtupnIV
egatloVwoLtupnIV
tupnIhtiwtnerruCtupnI
hgiHegatloV
tupnIhtiwtnerruCtupnI
woLegatloV
IH
IL
V
I
HNI
I
LNI
IN
V
IN
leveLhgiHcigoldeetnarauG
leveLwoLcigoldeetnarauG8.0
V8.0=srehtolla,V4.2=
V4.2=srehtolla,V8.0=1-500.01
cimanyD
emiTnO-nruTt
emiTffO-nruTt
)3(
noitcejnIegrahC
noitalosIffO
)8(
klatssorC
ecnaticapaCONroCN
ecnaticapaCffOMOC
ecnaticapaCnOMOC
htdiwdnaBBd3-
noitrotsiDDR
NO
VCC=5 1erugiF,V
FFO
L
05= Ω C, 05= Ω C,
,Fn1=V
L
L
R
L
NEG
05= Ω,rugiF7e
L
Q
RRIO
X
KLAT
C
)FFO(
C
C
)FFO(MOC
)NO(MOC
WB
C
R
L
R
L
R,V0=
0= Ω,
NEG
erugiF
2
=f,Fp5=zHM01,rugiFe3
=f,Fp5=zHM01,erugiF4
zHk1=f,5erugiF
zHk1=f,6erugiF81
k01= Ω,2.0%
)1(
)2(
pyT
)1(
xaM
2
lluF
1-500.01
lluF
52851
lluF
02
525.37
lluF
01
01Cp
52
8
41
032zHM
lluF
stinU
V
µA
sn
Bd
Fp
ylppuS
egnaRylppuS-rewoP
tnerruCylppuSevitisoP
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
ΟΝ = RΟΝ
max - R
ΟΝ
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 +25ºC. 7 . Off Isolation = 20log10 [ V 8 . Between any two switches. See figure 4.
V
CC
I
CC
V
min
/ (VNO or VNC) ]. See figure 3.
COM
26V
CC
afforonoslennahcll
V,V5.5=
NI
VroV0=
CC
,
3
lluF
1
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µA
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Electrical Specifications - Single +3.3V Supply
(VCC = +3.3V ±10%, GND = 0V, V
= 2.4V, V
INH
= 0.8V)
INL
PI5A100
Precision, Wide Bandwidth
4PDT Analog Switch
retemaraPlobmySsnoitidnoC)Cº(pmeTniM
)1(
)2(
pyT
)1(
xaM
stinU
hctiwSgolanA
)3(
egnaRhctiwSgolanA
0V
CC
V
522181
ecnatsiseR-nOR
-BhctaMecnatsiseR-nO
)4(
slennahCneewte
-(
)3
ssentalFecnatsiseR-nO
∆R
R
FLATION
ON
ON
V
CC
V
V
CC
V
NO ORVNC
I,V3=
COM
NO ORVNC
I,V3.3=
COM
03-=m,A
V5.1=
03-=m,A
lluF
525
lluF
Ω
5224
V5.2,V8.0=
lluF5
cimanyD
emiT-nO-nruTt
emiT-nO-nruTt
)3(
noitcejnIegrahC
ON
OFF
Q
V
CC
V
NO ORVNC
=V,Fn1
C
L
GEN
I,V3.3=
COM
,V0
Ferugi2
03-=m,A
R,V0=
GEN
V5.2,V8.0=
=
524152
lluF04
sn
525.421
lluF02
52501Cp
ylppuS
V
tnerruCylppuSevitisoPI
CC
CC
V,V6.3=
IN
=VroV0
CC
,
fforonoslennahclla
lluF1
µA
4
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PI5A100
Precision, Wide Bandwidth
4PDT Analog Switch
Typical Operating Characteristics (T
RON vs. V
40
Vcc = +2V
Ω
30
20
ON
R( W )
10
1
Leakage Currents vs. Analog Voltage
20
V
= +5V
CC
16
8
0
Leakage (pA)
2
COM
+3.3V
3
4
V
(V)
COM
I
A(ON or IB(ON)
+25ºC, unless otherwise noted)
=
A
+5V
I
FF) or IB(O
A(O
+7V
5
6
7
FF)
16
12
(Ω)
8
RON
4
0
0
10nA
1nA
100pA
10pA
Leakage
1pA
RON vs. V
V = +5V
CC
and Temperature
COM
A: TA = 90ºC B: TA = 25ºC
C: TA = -40ºC
A
B
C
1
2
V
COM
3
( V )
4
Leakage Current vs. Temperature
V
=
+5V
CC
)
N
(O
M
O
C
I
FF)
(O
M
I
CO
5
-8
-16 0
12
N
O,
NC,V
COM
3
(V)
Charge Injection vs. Analog Voltage
15
10
V = 5V
CC
5
45
0.1pA
0.01pA
-40
0
Temperature (”C)
40 80
(ºC)
º
Crosstalk and Off-Isolation vs. Frequency
-100
(dB)
-80
-60
Off Isolation
Crosstalk
-40
Q-Charge Injection (pC)
0
-5 0
123
V
COM
(V)
V = 3.3V
CC
-20
V
= +5V
CC
4
5
0
21
4
8
106
20 40 60
80
100
200
Frequency (MHz)
5
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PI5A100
Precision, Wide Bandwidth
4PDT Analog Switch
0
-1
-2
-3
-4
-5
-6
Insertion Loss (dB)
-7
-8
-9
-10 1
25
20
Insertion Loss vs. Frequency
-
3dB Point
V = +5V
CC
L
ON
Ω
3
vs. V
COM
610 Frequency (MHz)
30
and Single Supply
60
R = 50W
R
100
300
Input Switching Threshold vs. Supply Voltage
5
4
3
(V)
IN,
V
2
1
0
3
4
5
V
(V)
CC
6
Switching Times vs. Temperature
20
15
7
15
(ns)
OFF
t
10
ON,
t
5
0
10
1
0.1
Icc (n A)
0.01
0.001
3
-40
V
3.5
CC
4.5
4
= +5V
0
Temperature ( C)
t
ON,
t
OFF
5
5.5
V
(V)
CC
40 80
º
OFF
10
(ns)
ON
tt
5
6.5
6
7
0
-40
t
ON
t
OFF
0
40 80
Temperature (ºC)
Supply Current vs. Input Switching FrequencySupply Current vs. Temperature
2.0
1.8 V
= +5V
1.6
1.4
1.2
1.0
0.8
CC
I (mA)
0.6
0.4
0.2
0.0
CC
6
1
2
34
5
Frequency (MHz)
7
8
10
9
6
?
PS7012C 01/28/98
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Test Circuits/Timing Diagrams
PI5A100
Precision, Wide Bandwidth
4PDT Analog Switch
+5V
Switch
+3V*
Input
Logic
Input
CL INCLUDES FIXTURE AND STRAY CAPACITANCE
V
or NC
OUT
NO
IN
GND
= V
Vcc
COM
R
NO
L
()
R
L + RON
+5V
R
GEN
COM
V
GEN
V+
NO or
NC
IN
Logic
GND
Input
R
L
100Ω
Logic
Input
OUT
Switch Output
C
L
15pF
V
Figure 1. Switching Time
V
OUT
C
L
1nF
+3V
0V
0V
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE OPPOSITE LOGIC * 1.5V FOR 3.3V SUPPLY
V
OUT
IN
OFF
V
50%
OUT
t
ON
90%
ON
OFF
IN
ON
tr <20ns tf <20ns
t
OFF
∆V
OFF
OFF
90%
OUT
Figure 2. Charge Injection
Q = (∆V
OUT
)(CL)
7
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Test Circuits/Timing Diagrams (continued)
V+
+5V
NC
Capacitance
Meter
GND
EN
or NO
COM
10nF
IN
0V or
2.4V
f = 1kHz
PI5A100
Precision, Wide Bandwidth
4PDT Analog Switch
Analyzer
Capacitance
Meter
f = 1kHz
50W
50W
Ω
COM
Ω
Figure 3. Off Isolation
+5V
10nF
V+
COM
NC
or NO
GND EN
+5V
10nF
V+
COM
NC
or NO
GND
IN
EN
IN
0V or
2.4V
0V or
2.4V
Signal Generator 0dBm
0V or
2.4V
Analyzer
50W
Ω
+5V
10nF
V+
COM1
IN
COM
COM2
GND
Figure 4. Crosstalk
EN
NO2
N01
NC
50Ω
Ω
10W
Ω
Figure 5. Channel-Off Capacitance
+5V
10nF
Figure 6. Channel-On Capacitance
Vcc
COM
R
50W
Vo
L
Ω
NC or
NO
R
=
Ω
50W
g
GND EN
Figure 7. Bandwidth
8
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PI5A100
Precision, Wide Bandwidth
4PDT Analog Switch
Applications Information
Overvoltage
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.
Protection
Positive Supply
V+
COMNO
V
g
V-
Figure 8. Overvoltage protection is accomplished using two external blocking diodes or two current limiting resistors.
RGB Switch
Figure 9 illustrates a simple low cost RGB switch. The RGB -to­Composite Decoder produces either NTSC or S-VHS video from an RGB source. Asingle PI5A100 selects one of the two video sources
SVGA R-G-B
RGB to
Composite
Encoder
Y
4
R
G
Composite
C
B
PI5A100
Sync
Sync
Select
Figure 9 The single PI5A100 is used to select SVHS, VGA or Composite video outputs.
to produce either SVHS, Composite or RGB video outputs. The low insertion loss of the PI5A100 eliminates the need for expensive input/output buffers.
+5V
R or Luma 0.7V G or Composite 0.714V
B or Chroma 0.28V
H-Sync-0.3V
S-Video
Connector
VGA
Connector
Composite
Connector
9
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Applications
Vcc
GND
Select
J2
J1
Z1/Z2 - Dual SMT 3.0V Zener
32W
22kW
2.5V
-3V
Stereo Audio
Output
2.5V
Z3
Z4
Enable
Z1
Z2
+5V
-5V
-3V
Stereo Audio
Input
From DAC
10kW
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 32Ω headset impedance demands a very low and very flat switch-on resistance to reduce THD and signal loss.
PI5A100
Precision, Wide Bandwidth
4PDT Analog Switch
Paralleling two sections of the PI5A100 produces a Ron of 2.5Ω with an unsurpassed ±0.5Ω 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.
Ω
Figure 10. The PI5A100 momentarily mutes the stereo outputs by connecting them to ground during transition times.
Ω
Ω
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
10
PS7012C 01/28/98
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