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