FSA1259K8X

FSA1259K8X Datasheet


FSA1259 / FSA1259A Low-Voltage, 1Ω Dual SPST Analog Switch with Power-Off Isolation

Part Datasheet
FSA1259K8X FSA1259K8X FSA1259K8X (pdf)
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FSA1259 / FSA1259A Low-Voltage, 1Ω Dual SPST Analog Switch with Power-Off Isolation

July 2009

FSA1259 / FSA1259A

Low-Voltage, Dual SPST Analog Switch with Power-Off Isolation

Power-Off Isolation VCC=0V On Resistance RON for 4.5V VCC Maximum RON Flatness for 4.5V VCC Space-Saving, US8 Surface Mount Package Broad VCC Operating Range 1.65V to 5.50V Fast Turn-On and Turn-Off Times Break-Before-Make Enable Circuitry

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The FSA1259/FSA1259A is a high-performance, dual, Single-Pole / Single-Throw SPST analog switch. The device features ultra-low RON of 1Ω at 4.5V VCC and operates over the wide VCC range of 1.65V to 5.50V.

The FS1259A allows for reduced input thresholds on the select pins.

The device is fabricated with sub-micron CMOS technology to achieve fast switching speeds and is designed for break-before-make operation.
Ordering Information

Top Mark

FSA1259K8X 1259 FSA1259AK8X 59A

Operating Temperature

Range
-40°C to +85°C
-40°C to +85°C

Package
8-Lead US8, JEDEC MO-187, Variation CA, 3.0mm Wide 8-Lead US8, JEDEC MO-187, Variation CA, 3.0mm Wide

Packing Eco Status Method

Green
3000 Units Tape and Reel
3000 Units Tape and Reel

For Fairchild’s definition of Eco Status, please visit:
1A 1 1B 2 2S 3 GND 4
8 VCC 7 1S 6 2B 5 2A

Figure Analog Symbols

FSA1259 / FSA1259A Low-Voltage, 1Ω SPST Analog Switch with Power-Off Isolation

Pin Assignments

Pin Definitions

Pin # 1 2 3 4 5 6 7 8
1A 1 1B 2 2S 3 GND 4
8 Vcc
7 1S 6 2B 5 2A

Figure Pin Assignments Top View

Name 1A 1B 2S GND 2A 2B 1S VCC

Description Data Port Data Port Control Input Ground Data Port Data Port Control Input Supply Voltage

Truth Table

Control Input S LOW HIGH

Function Disconnected A Connected to B
2007 Fairchild Semiconductor Corporation

FSA1259 / FSA1259A Low-Voltage, 1Ω SPST Analog Switch with Power-Off Isolation

Absolute Maximum Ratings

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.

Parameter

Min.

Max.

Unit

VCC VSW VIN IIK ISW

ISWPEAK

Supply Voltage Switch Voltage 1 Input Voltage 1
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Datasheet ID: FSA1259K8X 515476