GENERAL DESCRIPTION

The AD8400/AD8402/AD8403 provide a single-, dual-, or quad-channel, 256-position, digitally controlled variable resistor (VR) device.1 These devices perform the same electronic adjustment function as a mechanical potentiometer or variable resistor. The AD8400 contains a single variable resistor in the compact SOIC-8 package.

FEATURES

256-position variable resistance device

Replaces 1, 2, or 4 potentiometers

1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ

Power shutdown—less than 5 μA

3-wire,SPI-compatible serial data input

10 MHz update data loading rate

2.7 V to 5.5 V single-supply operation

Qualified for automotive applications

APPLICATIONS

Mechanical potentiometer replacement

Programmable filters, delays, time constants

Volume control, panning

Line impedance matching

Power supply adjustment

参考价格：29.9645

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