GENERAL DESCRIPTION

The AD5207 provides dual channel, 256-position, digitally controlled variable resistor (VR) devices that perform the same electronic adjustment function as a potentiometer or variable resistor. Each channel of the AD5207 contains a fixed resistor with a wiper contact that taps the fixed resistor value at a point determined by a digital code loaded into the SPI-compatible serial-input register.

FEATURES

256-Position, 2-Channel

Potentiometer Replacement

10 k
, 50 k
, 100 k

Power Shut-Down, Less than 5 A

2.7 V to 5.5 V Single Supply

2.7 V Dual Supply

3-Wire SPI-Compatible Serial Data Input

Midscale Preset During Power-On

APPLICATIONS

Mechanical Potentiometer Replacement

Stereo Channel Audio Level Control

Instrumentation: Gain, Offset Adjustment

Programmable Voltage-to-Current Conversion

Programmable Filters, Delays, Time Constants

Line Impedance Matching

Automotive Electronics Adjustment