Potentiometer IC Boasts Low Tolerance
Available in a 3-mm² TDFN package, the ISL22317 Digitally Controlled Potentiometer from Intersil has less than a 1 percent typical resistor tolerance, giving users flexibility in open-loop applications. Accepting an input from 2.7 V to 5.5 V, the device can track an external resistor within 10 ppm/°C, improving overall system accuracy for temperatures up to 125°C. Features include an I²C interface, 128 tap positions, pin-selectable slave address, and a zero-compensated wiper resistance in rheostat mode. From $1.80.