General Description
The MAX5395 single, 256-tap volatile, low-voltage linear taper digital potentiometer offers three end-to-end resistance values of 10kΩ, 50kΩ, and 100kΩ. Potentiometer terminals are independent of supply for voltages up to 5.25V with single-supply operation from 1.7V to 5.5V (charge pump enabled). User-controlled shutdown modes allow the H, W, or L terminal to be opened with the wiper position set to zero-code, midcode, full-code, or the value contained in the wiper register. Ultra-low-quiescent supply current (< 1µA) can be achieved for supply voltages between 2.6V and 5.5V by disabling the internal charge pump and not allowing potentiometer terminals to exceed the supply voltage by more than 0.3V. The MAX5395 provides a low 50ppm/°C end-to-end temperature coefficient and features an I2C serial interface.

FEATUREs
♦ Single Linear Taper 256-Tap Positions
♦ 10kI, 50kI, and 100kI End-to-End Resistance
♦ 1.7V to 5.5V Extended Single Supply
♦ 0 to 5.25V H, W, L Operating Voltage Independent of VDD
♦ 1µA (typ) Supply Current in Low-Power Mode
♦ ±1.0 LSB INL, ±0.5 LSB DNL (max) Wiper Accuracy
♦ Power-On Sets Wiper to Midscale
♦ 50ppm/NC End-to-End Temperature Coefficient
♦ 5ppm/NC Ratiometric Temperature Coefficient
♦ -40NC to +125NC Operating Temperature Range
♦ 2mm x 2mm, 8-Pin TDFN Package
♦ I2C-Compatible Serial Interface

APPLICATIONs
    Portable Electronics
    System Calibration
    Battery-Powered Systems
    Automotive Electronics
    Mechanical Potentiometer Replacement