General Description

The AS1744/AS1745 are high-speed, low-voltage, dual single-pole/double-throw (SPDT) analog switches.

Fast switching speeds, low ON-resistance, and low power-consumption make these devices ideal for singlecell battery powered applications.

Key Features

■ ON-Resistance:

- 4Ω (+5V supply)

- 5.5Ω (+3V supply)

■ RON Matching: 0.2Ω (+5V supply)

■ RON Flatness: 1Ω (+5V supply)

■ Supply Voltage Range: +1.8 to +5.5V

■ 1.8V Operation:

- 9.5Ω ON-Resistance over Temperature

- 38ns Turn On Time

- 12ns Turn Off Time

■ Current-Handling: 100mA Continuous

■ Break-Before-Make Switching

■ Rail-to-Rail Signal Handling

■ Crosstalk: -90dB at 1MHz

■ Off-Isolation: -85dB at 1MHz

■ Total Harmonic Distortion: 0.1

■ Operating Temperature Range: -40 to +85ºC

■ Package Types:

- 10-pin MSOP

- 10-pin TDFN

Applications

The devices are ideal for use in power routing systems, cordless and mobile phones, MP3 players, CD and DVD players, PDAs, handheld computers, digital cameras, and any other application where high-speed signal switching is required.