1
PS8641A 06/27/04
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Features
1-ohm max. On-Resistance
0.15-ohm max. On-Resistance Flatness at +25C
Fast Switching
t
ON
= 50ns max.
t
OFF
= 50ns max.
+1.8V to +5.5V Single-Supply Operation
TTL/CMOS-Logic Compatible
57dB Off-Isolation at 1MHz
4nA max. Off-Leakage at +25C
Packaging:
- 5-Pin SOT-23 (T)
Description
PI5A4626/PI5A4629, single-pole/single-throw (SPST) analog
switches that operate from a single +1.8V to +5.5V supply, are
normally open (NO). The PI5A4629 pinout is optimized for the
highest SOT-23 package off-isolation available.
These switches have 1-ohm max On-resistance (R
ON
), with 0.12-
ohm max R
ON
flatness over the analog signal range when powered
from a +5V supply. Leakage currents are 0.5nA and fast switching
times are less than 50ns. They are packaged in a compact 5-pin
SOT-23 package.
Functional Block Diagrams/Pin Configurations
Top Views
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O
Switches shown for Logic "0" input.
PI5A4626/PI5A4629
SOT
INY
TM
Low-Voltage, Single-Supply,
1-Ohm SPST CMOS Analog Switches
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Pin Description
Note:
NO, NC, and COM pins are identical and interchangeable. Any pin may
be considered as an input or an output; signals pass
Applications
Cellular Phones Communications Circuits
Battery-Operated Equipment DSL Modems
Audio and Video Signal Routing PCMCIA Cards
Truth Table
COM
PI5A4626
NO
GND
1
2
3
5
4
V+
IN
IN
PI5A4629
COM
GND
1
2
3
5
4
V+
NO
2
PS8641A 06/27/04
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PI5A4626/4629
SOT
INY
Low-Voltage, Single-Supply,
1-Ohm SPST CMOS Analog Switches
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.
Absolute Maximum Ratings
Voltages Referenced to GND
V+ ..................................................................... 0.5V to +5.5V
V
IN
, V
COM
, V
NC
, V
NO
(Note 1) ................ 0.5V to V
+
+0.3V
or 30mA, whichever occurs first
Current (any terminal) ..................................................200mA
Peak Current, COM, NO, NC
(Pulsed at 1ms, 10% duty cycle) .................................. 400mA
Note:
1. Signals on NC, NO, COM, or IN exceeding V+ or GND are clamped by
internal diodes. Limit forward diode current to 30mA.
Thermal Information
Continuous Power Dissipation
SOT-23 (derate 7.1mW/C above +70C) ............................ 0.5W
Storage Temperature ....................................... 65C to +150C
Lead Temperature (soldering, 10s) ............................... +300C
Electrical Specifications - Single +5V Supply
(V+ = +5V 10%, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V)
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PS8641A 06/27/04
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PI5A4626/4629
SOT
INY
Low-Voltage, Single-Supply,
1-Ohm SPST CMOS Analog Switches
Electrical Specifications - Single +5V Supply
(continued)
(V+ = + 5V 10%, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V)
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A
Notes:
1. The algebraic convention, where most negative value is a minimum and 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
ON
=
R
ON
max. - R
ON
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 = 20log
10
[ V
COM
/ (V
NO
or V
NC
)
]. See Figure 3.
8. Between any two switches. See Figure 4.
4
PS8641A 06/27/04
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PI5A4626/4629
SOT
INY
Low-Voltage, Single-Supply,
1-Ohm SPST CMOS Analog Switches
Electrical Specifications - Single +3.3V Supply
(V+ = +3.3V 10%, GND = 0V, V
INH
= 2.0V, V
INL
= 0.6V)
Notes:
1. The algebraic convention, where most negative value is a minimum and 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
ON
=
R
ON
max. - R
ON
min.
5. Flatness is defined as the difference between the maximum and minimum value of On-resistance measured.
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5
PS8641A 06/27/04
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PI5A4626/4629
SOT
INY
Low-Voltage, Single-Supply,
1-Ohm SPST CMOS Analog Switches
Electrical Specifications - Single +2.5V Supply
(V+ = +2.5V 10%, GND = 0V, V
INH
= 1.8V, V
INL
= 0.6V)
Notes:
1. The algebraic convention, where most negative value is a minimum and 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
ON
=
R
ON
max. - R
ON
min.
5. Flatness is defined as the difference between the maximum and minimum value of On-resistance measured.
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PS8641A 06/27/04
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12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
PI5A4626/4629
SOT
INY
Low-Voltage, Single-Supply,
1-Ohm SPST CMOS Analog Switches
Electrical Specifications - Single +1.8V Supply
(V+ = +1.8V 10%, GND = 0V, V
INH
= 1.5V, V
INL
= 0.6V)
Notes:
1. The algebraic convention, where most negative value is a minimum and 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
ON
=
R
ON
max. - R
ON
min.
5. Flatness is defined as the difference between the maximum and minimum value of On-resistance measured.
Paramenter
Description
Test Conditions
Temp.(C) Min.
(1)
Typ.
(2)
Max.
(1)
Units
Analog Switch
Analog Signal Range
(3)
V
ANALOG
0
V+
V
On Resistance
R
ON
V+=1.8V, I
COM
= 2mA,
V
NO
or V
NC
= 1.5V
25
2.0
4
Ohm
Full
5
On-Resistance Match
Between Channels
(4)
R
ON
V+=1.8V, I
COM
= 2mA,
V
NO
or V
NC
= 0.6V,1.5V
25
0.44
0.6
Full
0.7
On-Resistance Flatness
(3,5)
R
FLAT(ON)
25
0.5
0.6
Full
0.9
Dynamic
Turn-On Time
t
ON
V+=1.8V, V
NO
or V
NC
= 1.5V, Figure 1
25
65
70
ns
Full
95
Turn-Off Time
t
OFF
25
40
55
Full
70
Charge Injection
(3)
Q
C
L
= 1nF, V
GEN
= 0V, R
GEN
= 0V, Figure 2
25
10
pC
Supply
Positive Supply Current
I+
V+=2.0V, V
IN
= 0V or V+
All channels on or off
Full
0.5
1
A
Logic Input
Input HIGH Voltage
V
IH
Guaranteed logic high level
Full
1.5
V
Input LOW Voltage
V
IL
Guaranteed logic Low level
Full
0.6
Input HIGH Current
I
INH
V
IN
=1.5V, all others = 0.8V
Full
1
1
A
Input HIGH Current
I
INL
V
IN
=0.8V, all others =1.5V
Full
1
1
7
PS8641A 06/27/04
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123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123
PI5A4626/4629
SOT
INY
Low-Voltage, Single-Supply,
1-Ohm SPST CMOS Analog Switches
Test Circuits/Timing Diagrams
Figure 1. Switching Time
Figure 2. Charge Injection
Figure 3. Off Isolation/On-Channel Bandwidth
Figure 4. Crosstalk
V+
V+
NO
GND
COM
+3V*
Logic
Input
IN
tr <20ns
tf <20ns
VOUT = VNO
RL
RL + RON
(
)
CL INCLUDES FIXTURE AND STRAY CAPACITANCE
VOUT
VOUT
RL
50
ohm
CL
35pF
LOGIC INPUT WAVEFORMS INVERTED FOR
SWITCHES THAT HAVE OPPOSITE LOGIC
* 1.5V FOR 3.3V SUPPLY
tOFF
tON
90%
90%
Logic
Input
Switch
Output
VINH
VINL
0V
50%
Switch
Input
V
OUT
V
OUT
V
OUT
V
GEN
Logic
Input
OFF
OFF
OFF
ON
ON
IN
IN
COM
IN
GND
V+
.1F
V+
NO
OFF
Q = (
V
OUT
)(C
L
)
C
L
1nF
V+
+5V
Analyzer
IN
10nF
NO
COM
0V to 2.4V
or
0V to 2V
GND
50ohm
50ohm
Analyzer
Signal
Generator
0dBm
COM
10nF
GND
NC
NO
IN
V
CC
V+
50
ohm
50
ohm
8
PS8641A 06/27/04
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PI5A4626/4629
SOT
INY
Low-Voltage, Single-Supply,
1-Ohm SPST CMOS Analog Switches
Test Circuits/Timing Diagrams
(continued)
Figure 5. Channel On/Off Capacitance
Figure 6. Bandwidth
Capacitance
Meter
COM
IN
10nF
GND
f = 1 MHz
NO
+5V
V+
0V to 2.4V
or 0V to 2V
V+
GND
NC or
NO
10nF
COM
+5V
Vo
Rg = 50
ohm
R
L
50
ohm
9
PS8641A 06/27/04
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PI5A4626/4629
SOT
INY
Low-Voltage, Single-Supply,
1-Ohm SPST CMOS Analog Switches
Packaging Mechanical: 5-Pin SOT-23 (T)
.102
.118
BSC
0.60
1
2
3
.000
.005
0.00
0.15
.014
.019
0.35
0.50
5
4
1.50
1.75
.059
.068
0.10
.023
.004
1.45 MAX.
SEATING
PLANE
.057
0" - 10"
1.90
.075
.037
BSC
2.60
3.00
0.95
.110
.118
2.80
3.00
X.XX
X.XX
Datum "A"
DENOTES DIMENSIONS
IN MILIMETERS
Pericom Semiconductor Corporation 1-800-435-2336 http://www.pericom.com
Ordering Information
Notes:
1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
2. X = Tape and reel
3. Number of transistors: 604 (both devices)
Ordering Code
Package Code
Package Description
Top Marking
PI5A4626TX
T
5-pin SOT-23
ZI
PI5A4629TX
T
5-pin SOT-23
ZH
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