General Description
The MAX5450–MAX5455 are a family of dual digital potentiometers that perform the same function as a mechanical potentiometer or variable resistor. The MAX5451/MAX5453/MAX5455 have two 3-terminal potentiometers and the MAX5450/MAX5452/MAX5454 have two 2-terminal variable resistors. The MAX5450–MAX5455 operate from a +2.7V to +5.5V single-supply voltage and use an ultra-low supply current of 0.1µA. These devices consist of two fixed resistors each
with 256 digitally-controlled wiper contacts. The convenient power-on reset (POR) sets the wiper to midscale position at power-up and the easy-to-use up/down interface allows glitchless switching between resistor taps. Six inputs control the 14-pin MAX5451/MAX5453/MAX5455 potentiometers. Four inputs control the 10-pin MAX5450/MAX5452/MAX5454 variable resistors.

FEATUREs
♦Small-Footprint Packages
  10-Pin µMAX (MAX5450/MAX5452/MAX5454)
  14-Pin TSSOP (MAX5451/MAX5453/MAX5455)
♦256-Tap Positions
♦Independent Up/Down Potentiometer Controls(MAX5451/MAX5453/MAX5455)
♦Ultra-Low 0.1µA Supply Current
♦+2.7V to +5.5V Single-Supply Operation
♦Low 35ppm/°C End-to-End Temperature Coefficient
♦Power-On Reset Sets Wiper to Midscale(Position 127)
♦Glitchless Switching Between the Resistor Taps
♦10kΩ, 50kΩ, 100kΩResistance Values

APPLICATIONs
Mechanical Potentiometer Replacement
Low-Drift Programmable-Gain Amplifier (PGA)
Volume Control
LCD Screen Adjustment
Adjustable Voltage References
Adjustable Linear Regulators
Programmable Filters, Delays, Time Constants
Impedance Matching