Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer

The MAX5389 dual, 256-tap, volatile, low-voltage linear taper digital potentiometer offers three end-to-end resistance values of 10kΩ, 50kΩ, and 100kΩ. Operating from a single +2.6V to +5.5V power supply, the device provides a low 35ppm/°C end-to-end temperature coefficient. The MAX5389 features an up/down interface.

The small package size, low supply operating voltage, low supply current, and automotive temperature range of the MAX5389 make the device uniquely suited for the portable consumer market and battery backup industrial applications.

The MAX5389 is specified over the automotive -40°C to +125°C temperature range and is available in a 14-pin TSSOP package.

Applications

* Adjustable Voltage References/Linear Regulators * Audio Mixing * Low-Drift Programmable Filters and Amplifiers * Low-Voltage Battery Applications * Mechanical Potentiometer Replacement * Programmable Delays and Time Constants

* Dual, 256-Tap Linear Taper Positions

* Single +2.6V to +5.5V Supply Operation

* Low (< 1µA) Quiescent Supply Current

* 10kΩ, 50kΩ, 100kΩ End-to-End Resistance Values

* Up/Down Interface

* Power-On Sets Wiper to Midscale

* -40°C to +125°C Operating Temperature Range