1
PS8199D 01/12/01
PI5A125
Single Wide Bandwidth Analog Switch
Features
Single-Supply Operation (+2V to +6V)
Rail-to-Rail Analog Signal Dynamic Range
Low On-Resistance (6-Ohm typical with 5V supply)
Minimizes Distortion and Error Voltages
On-Resistance Flatness, 3-Ohm typical
Low Charge Injection Reduces Glitch Errors.
Q = 4pC (typical)
Replaces Mechanical Relays
High Speed: t
ON
= 10ns typical
Wide 3dB Bandwidth: 300 MHz (typical)
High-Current Channel Capability: >100mA
TTL/CMOS Logic Compatible
Low Power Consumption (0.5
W typical)
Small outline transistor package minimizes board area
65 mil wide SOT23-5 (T5)
Applications
Audio, Video Switching and Routing
Battery-Powered Communication Systems
Computer Peripherals
Telecommunications
Portable Instrumentation
Mechanical Relay Replacement
Cell Phones
PDAs
Functional Diagram, Pin Configuration
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Description
The PI5A125 is a single analog switch designed for single-supply
operation. This high-precision device is ideal for low-distortion
audio, video, signal switching and routing.
The PI5A125 is a single-pole single-throw (SPST), normally closed
(NC) switch. The switch is open when OE is HIGH.
This switch conducts current equally well in either direction when
on. When off, it blocks voltages up toV
CC
.
The PI5A125 is fully specified with +5V, and +3.3V supplies. With
+5V, it guarantees <10-ohms ON-resistance. ON-resistance flatness
is less than 5-ohms over the specified range. The switch also
guarantees fast switching speeds (t
ON
<20ns).
This product is available in a 5-pin SOT23 plastic package for
operation over the industrial (40C to +85C) temperature range.
2
3
1
OE
A
GND
SOT23-5
Top View
B
VCC
5
4
Truth Table
E
O
5
2
1
A
5
I
P
0
N
O
1
F
F
O
Switch shown for Logic "0" input
2
PS8199D 01/12/01
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PI5A125
Single Wide Bandwidth Analog Switch
Electrical Specifications - Single +5V Supply
(V
CC
= +5V 10%, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V)
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4
=
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=
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2
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4
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2
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1
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5
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5
=
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=
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5
.
4
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=
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2
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5
=
+
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0
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A
1
A
3
PS8199D 01/12/01
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PI5A125
Single Wide Bandwidth Analog Switch
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.
Continuous Power Dissipation
SOT23-5 (derate 7mW/C above +70C) ................. 550mW
Storage Temperature ................................... -65C to +150C
Lead Temperature (soldering, 10s) ........................... +300C
Voltages Referenced to GND
V
CC .......................................................................................
0.5V to +7V
V
OE
, V
A
, V
B
(1)
................................................................
0.5V to V
CC
+2V
.............................................. or 30mA, whichever occurs first
Current (any terminal except A, B) .................................. 30mA
Current: A,B (pulsed at 1ms, 10% duty cycle) .............. 120mA
Note 1:
Signals on OE, A, B exceeding Vcc or GND are clamped by
internal diodes. Limit forward diode current to 30mA.
Absolute Maximum Ratings
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
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
B
/ V
A
. See Figure 3.
Electrical Specifications-Single +3.3V Supply
(V
CC
= +3.3V 10%, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V)
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R
-
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O
R
N
O
V
C
C
I
,
V
3
=
B
V
,
A
m
0
3
-
=
A
V
5
.
1
=
5
2
2
1
8
1
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2
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,
3
(
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T
A
L
F
V
C
C
I
,
V
3
.
3
=
B
,
A
m
0
3
-
=
V
A
V
5
.
2
,
V
8
.
0
=
5
2
5
.
0
4
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F
5
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V
C
C
O
N
V
o
t
V
3
.
3
=
1
.
g
i
F
,
V
5
.
1
=
C
N
V
r
o
5
2
5
1
5
2
s
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l
u
F
0
4
e
m
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T
f
f
O
-
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r
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T
t
F
F
O
5
2
5
.
1
2
1
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F
0
2
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g
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a
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C
)
3
(
Q
C
L
V
,
f
n
1
=
N
E
G
R
,
V
0
=
N
E
G
2
.
g
i
F
,
V
0
=
5
2
3
.
1
0
1
C
p
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p
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I
C
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p
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r
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u
C
V
C
C
V
r
o
V
0
=
n
i
V
,
V
6
.
3
=
C
C
f
f
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o
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A
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1
A
Thermal Information
4
PS8199D 01/12/01
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PI5A125
Single Wide Bandwidth Analog Switch
Test Circuits/Timing Diagrams
Figure 1. Switching Time
Figure 2. Charge Injection
V+
+5V
B
GND
A
R
GEN
V
OUT
C
L
1nF
V
OUT
V
OUT
OE
V
GEN
ON
OFF
OFF
Q = (
V
OUT
)(C
L
)
OE
Logic
Input
V
CC
+5V
A
GND
B
+3V*
Logic
Input
OE
tr <20ns
tf <20ns
V
OUT =
V
NO
R
L
R
L +
R
ON
(
)
C
L
INCLUDES FIXTURE AND STRAY CAPACITANCE
V
OUT
R
L
100
C
L
15pF
* 1.5V FOR 3.3V SUPPLY
t
OFF
t
ON
V
OUT
90%
90%
Logic
Input
Switch
Output
+3V
0V
0V
50%
Switch
Input
5
PS8199D 01/12/01
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PI5A125
Single Wide Bandwidth Analog Switch
Test Circuits/Timing Diagrams
(continued)
Figure 3. Off Isolation
Figure 4. Channel-Off Capacitance
Figure 5. Channel-On Capacitance
Figure 6. Bandwidth
V+
+5V
Analyzer
GND
B
A
10nF
OE
50
2.4V
COM
50
V+
+5V
Capacitance
Meter
GND
B
A
10nF
OE
0V
f = 1kHz
V
CC
GND
A
10nF
B
+5V
V
O
R
G
= 50
R
L
= 50
V+
+5V
Capacitance
Meter
GND
B
A
10nF
OE
2.4V
f = 1kHz
6
PS8199D 01/12/01
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PI5A125
Single Wide Bandwidth Analog Switch
Ordering Information
P/N
Package
PI5A125TX
SOT23-5
Pericom Semiconductor Corporation
2380 Bering Drive San Jose, CA 95131 1-800-435-2336 Fax (408) 435-1100 http://www.pericom.com
.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
1.45MAX.
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
Small Outline Transistor Package - SOT23-5 (T5)
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