PI5A3157B
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Low Voltage SPDT Analog Switch 2:1 Mux/Demux Bus Switch
Description
Features
The PI5A3157B is a high-bandwidth, fast single-pole
CMOS Technology for Bus and Analog
Applications
double-throw (SPDT) CMOS switch. It can be used as
an analog switch or as a low-delay bus switch. Specified
over a wide operating power supply voltage range,
1.65V to 5.5V, the PI5A3157B has a maximum ON
resistance of 12-ohms at 1.65V, 9-ohms at 2.3V & 6-
ohms at 4.5V.
Low On-Resistance: 8Ω at 3.0V
Wide VCC Range: 1.65V to 5.5V
Rail-to-Rail Signal Range
Control Input Overvoltage Tolerance: 5.5V
Fast Transition Speed: 2ns at 5.0V
High Off Isolation: -63dB @ 10MHz
Break-Before-Make Switching
High Bandwidth: 350MHz
Extended Industrial Temperature Range:
-40°C to 85°C
Break-before-make switching prevents both switches
being enabled simultaneously. This eliminates signal
disruption during switching.
The control input, S, is independent of supply voltage.
PI5A3157B is an improved direct replacement for the
NC7SB3157.
PI5A3157B Is Improved Direct Replacement for
NC7SB3157
Application
Packaging (Pb-free & Green):
-6-pin UDFN 1mm×1 mm
Cell Phones
PDAs
-6-pin SC70
MP3 Players
Portable Instrumentation
Battery powered Communications
Computer Peripherals
Pin Assignment
B1
1
6
S
VCC
B1
A
1
2
3
6 S
5 GND
4 B0
VCC
GND
B0
2
3
5
4
A
SC70-6
UDFN-6
Pin Description
Pin No
Logic Function Table
Logic Inputs(S)
Function
Pin Name
Description
SC70-6 UDFN-6
0
1
B0 connect to A
B1 connect to A
1
2
3
4
5
6
2
5
4
3
1
6
B1
GND
B0
Data Port
Ground
Data Port (Normally connected)
Common Output/Data Port
Positive Power Supply
Logic control
A
VCC
S
2015-02-0002
PT0353-5
07/02/15
1