ANALOG DEVICES AD5270/AD5271 handbook

AD5270/AD5271 is a digital rheostat with single-channel, 1024-/256-position resolution, 1% resistor tolerance error, SPI interface, etc. It is suitable for mechanical rheostat replacements and can be used for variable gain control in op-amps, gain and offset adjustment in instrumentation, programmable voltage to current conversions, programmable filters, delays, etc.