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FSA2257
Low RON, Low-Voltage Dual SPDT Bi-Directional
Analog Switch
Features
Description
The FSA2257 is a high-performance bi-directional dual
Single-Pole/Double-Throw (SPDT) analog switch. This
switch can be configured as either a multiplexer or a demultiplexer by select pins. The device features ultra-low
RON of 1.3 maximum at 4.5 V VCC and operates over
the wide VCC range of 1.65 V to 5.50 V. The device is
fabricated with submicron CMOS technology to achieve
fast switching speeds and is designed for break-beforemake operation. The select input is TTL-level compatible.
Maximum 1.15 On Resistance (RON) at 4.5 V VCC
0.3 Maximum RON Flatness at +5 V VCC
Space-Saving MicroPak™
Broad VCC Operating Range: 1.65 V to 5.50 V
Fast Turn-On and Turn-Off Time
Break-Before-Make Enable Circuitry
Over-Voltage Tolerant TTL-Compatible Control
Input
Applications
Cell Phone
PDA
Mobile Devices
Ordering Information
Package
Number
Top
Mark
FSA2257L10X
MAC10A
EP
FSA2257MTCX
MCT14
FSA2257
MUA10A
FSA
2257
Part Number
FSA2257MUX
Package Description
Packing Method
10-Lead MicroPak™, 1.6 x 2.1 mm
5000 Units Tape and Reel
14-Lead Thin Shrink Small Outline Package
(TSSOP), JEDEC MO-153, 4.4 mm Wide
2500 Units Tape and Reel
10-Lead Molded Small Outline Package
(MSOP), JEDEC MO-187, 3.0 mm
4000 Units Tape and Reel
Figure 1. Block Diagram
© 2006 Fairchild Semiconductor Corporation
FSA2257 • Rev. 1.0.6
www.fairchildsemi.com
FSA2257— Low RON, Low-Voltage Dual SPDT Bi-Directional Analog Switch
May 2013
Figure 2. Pin Assignments for TSSOP (Top View)
Figure 3. MicroPak™ Pad Assignments (Top View)
Figure 4. Pin Assignments for MSOP (Top View)
Figure 5. Analog Symbols (Top Through View)
Pin Definitions
Pin#
TSSOP
Pin#
MicroPak™
Pin #
MSOP
Name
1
7
4
1A
2,5
10
8
GND
3
9
5
1B0
Data Ports
4
3
9
2A
Data Ports
6
1
10
2B0
Data Ports
NC
No Connect
7,8
Description
Data Ports
FSA2257— Low RON, Low-Voltage Dual SPDT Bi-Directional Analog Switch
Pin Configurations
Ground
9
4
1
2B1
Data Ports
10
2
2
2S
Control Inputs
11,14
5
3
VCC
Power Supply
12
6
6
1B1
Data Ports
13
8
7
1S
Control Inputs
Truth Table
Control Input (S)
Function
Low Logic Level
B0 connected to A
High Logic Level
B1 connected to A
© 2006 Fairchild Semiconductor Corporation
FSA2257 • Rev. 1.0.6
www.fairchildsemi.com
2
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Symbol
VCC
Parameter
Supply Voltage
(1)
Min.
Max.
Unit
-0.5
6.0
V
VSW
DC Switch Voltage
-0.5
VCC + 0.5
V
VIN
DC Input Voltage(1)
-0.5
6.0
V
Input Diode Current
-50
Switch Current
200
mA
Peak Switch Current (Pulsed at 1 ms duration,
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