DESCRIPTION

The A4722 is a quad, low on-resistance, low voltage, bidirectional, single-pole/double-throw (SPDT) CMOS analog switch that is designed to operate from a single +1.8V to +4.2V power supply. Targeted applications include battery powered equipment that benefit from low RON (0.5Ω) and fast switching speeds (tON = 52 ns, tOFF = 25 ns).

The A4722 consists of four SPDT switches. It is configured as a dual double-pole/double-throw (DPDT) device with two logic control inputs that control two SPDT switches each. The configuration can be used as a dual differential 2-to-1 multiplexer/demultiplexer.

The A4722 is available in QFN16 package.

FEATURES

? Low Voltage Operation: 1. 8V to 4. 2V

? Low On-Resistance: 0. 5Ω(TYP)

? Low On-Resistance Flatness

? –3dB Bandwidth: 70MHz

? Fast Switching Time(4.2V)

tON 52ns

tOFF 25ns

? Rail-to-Rail Operation

? Typical Power Consumption (<0.01 μW)

? TTL/CMOS Compatible

? Available in QFN16 Package

APPLICATION

? Communication Systems

? Cell Phones

? Portable Instrumentation

? Audio Signal Routing

? Audio and Video Switching

? PCMCIA Cards

? Computer Peripherals

? Modems

? PDAs