GENERAL DESCRIPTION

The AD5260/AD5262 provide a single- or dual-channel, 256-position, digitally controlled variable resistor (VR) device.* These devices perform the same electronic adjustment function as a potentiometer or variable resistor. Each channel of the AD5260/AD5262 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 Positions

AD5260 – 1-Channel

AD5262 – 2-Channel (Independently Programmable)

Potentiometer Replacement

20 kΩ, 50 kΩ, 200 kΩ

Low Temperature Coefficient 35 ppm/C

4-Wire SPI-Compatible Serial Data Input

5 V to 15 V Single-Supply; ±5.5 V Dual-Supply Operation

Power ON Mid-Scale Preset

APPLICATIONS

Mechanical Potentiometer Replacement

Instrumentation: Gain, Offset Adjustment

Stereo Channel Audio Level Control

Programmable Voltage to Current Conversion

Programmable Filters, Delays, Time Constants

Line Impedance Matching

Low Resolution DAC Replacement