PI5A121/PI5A122/PI5A124
Wide Bandwidth Analog Switches
Features
Description
• Single-Supply Operation (+2V to +6V)
• Rail-to-Rail Analog Signal Dynamic Range
• Low ON-Resistance (6Ω typ. with 5V supply)
The PI5A121/PI5A122/PI5A124 are analog switches designed
for single-supply operation. These high-precision devices are
idealforlow-distortionaudio, video, signalswitchingandrouting.
Minimizes Distortion and Error Voltages
• On-Resistance Flatness, 3Ω typ.
• Low Charge Injection Reduces Glitch Errors. Q = 4pC typ.
The PI5A121 is a single-pole throw (SPST) normally open (NO)
switch. The switch is open when IN is LOW. The PI5A122 is
a single-pole single-throw (SPST) normally closed (NC) switch.
• High Speed. t = 10ns typ.
ON
Each switch conducts current equally well in either direction
when on. When off, they block voltages up to V+.
• Wide -3dB Bandwidth: 326 MHz (typ.)
• High-Current Channel Capability: >100mA
• TTL/CMOS Logic Compatible
These switches are fully specified with +5V, and +3.3V supplies.
With +5V, they guarantee <10Ω on-resistance. ON-resistance
matching between channels is within 2Ω. ON-resistance flatness
is less than 5Ω over the specified range. These switches also
• Low Power Consumption (0.5µW typ)
• Small outline transistor package minimizes board area
- 65mil Wide SOT23-5 (T5) for PI5A121/PI5A122
- 65mil Wide SOT23-6 (T6) for PI5A124
- 50mil Wide SC70-5 (C5) for PI5A121/PI5A122
guarantee fast switching speeds (t <20ns).
ON
These products are available in 5-pin SC70 and/or 6-pin SOT23
o
o
plasticpackagesforoperationovertheindustrial(-40 Cto+85 C)
temperature range.
Applications
Ordering Information
• Audio, Video Switching, and Routing
• Battery-Powered Communication Systems
• Computer Peripherals
• Telecommunications
• Portable Instrumentation
• Mechanical Relay Replacement
• Cell Phones
P/N
Package
SOT23-5
SOT23-5
SOT23-6
SC70-5
PI5A121T
PI5A122T
PI5A124T
PI5A121C
PI5A122C
SC70-5
• PDAs
Functional Diagrams, Pin Configurations and Truth Tables
PI5A121
PI5A122
PI5A124
COM
NO
1
2
3
5
COM
NC
1
2
3
5
4
IN 1
V+ 2
6
5
4
V+
V+
IN
NO
COM
NC
4
3
GND
GND
IN
GND
SOT23-6
Top View
Top View
Top View
PI5A124
IN
PI5A121
PI5A122
Logic
NC
ON
NO
0
1
OFF
ON
ON
0
1
OFF
ON
OFF
OFF
Switches shown for Logic “0” input
For free samples and the latest data sheet visit: www.pericom.com, or phone 1800-435-2336
PS8203C
08/05/99
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