General Description

The MAX5389 dual, 256-tap, volatile, low-voltage linear taper digital potentiometer offers three end-to-end resistance values of 10kI, 50kI, and 100kI. Operating from a single +2.6V to +5.5V power supply, the device provides a low 35ppm/NC 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, battery backup industrial applications, and the automotive market.

Features

♦ Dual, 256-Tap Linear Taper Positions

♦ Single +2.6V to +5.5V Supply Operation

♦ Low (< 1µA) Quiescent Supply Current

♦ 10kI, 50kI, 100kI End-to-End Resistance Values

♦ Up/Down Interface

♦ Power-On Sets Wiper to Midscale

♦ -40°C to +125NC Operating Temperature Range

Applications

  Audio Mixing

  Mechanical Potentiometer Replacement

  Low-Drift Programmable Filters and Amplifiers

  Adjustable Voltage References/Linear Regulators

  Programmable Delays and Time Constants

  Automotive Electronics

  Low-Voltage Battery Applications