PI3A125
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SOT
INY
TM
Low Voltage SPST
Analog Switch/Bus Switch
Features
• Low Voltage, SPST Switch
– V
CC
from 2.3V to 3.6V
• Low On-Resistance: 6 ohms at 3.0V
• CMOS Technology for Bus and Analog Applications
• Rail-to-Rail Signal Range
• Low Power: 30µW at 3.0V
• High Speed: 4ns
• High Off Isolation: 65dB at 1MHz
• High Bandwidth: 250MHz
• Extended Industrial Temperature Range: -40°C to 85°C
• Improved, Direct Replacement for SN74CBTLV1G125
• Packaging:
- 5-pin SC70 (C)
- 5-pin SOT-23 (T)
Description
The PI3A125 is a high-speed CMOS SPST switch that can be used
in analog or low-delay bus switch applications.
Specified over a wide operating power supply voltage range, 2.3V
to 3.6V, the PI3A125 has a low maximum ON resistance of 10-ohm
at 2.3V and 7 ohms at 3V. The CMOS device features rail-to-rail
signal range. The switch is turned off when the OE input is high.
Power requirements at 3V are a low 30µW.
The PI3A125 is an improved, direct replacement for the
SN74CBTLV1G125. Pericom improvements include lower resis-
tance and detailed analog switch specifications.
Connection Diagram
PI3A125
OE
1
5
V
CC
Applications
• Cell Phones
• Computer Peripherals
• Bus Isolation
• Servers/Routers
• Data Communications
• PDAs
• Portable Instrumentation
• Battery Powered Communications
GND
3
4
B
A
2
Pin Description
Pin Numbe r
1
2
3
4
5
Name
OE
Port A
GND
Port B
V
CC
De s cription
Enable Logic Input
Input/Output (Bidirectional)
Ground
Input/Output (Bidirectional)
Positive Power Supply
Logic Function Table
OE
0
1
Function
ON
O FF
1
PS8575A
06/27/04
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
