Maxim Integrated MAX5450EUB

Description
The MAX5450-MAX5455 are dual digital potentiometers that function similarly to mechanical potentiometers or variable resistors. The MAX5451/MAX5453/MAX5455 have two 3-terminal potentiometers, while the MAX5450/MAX5452/MAX5454 have two 2-terminal variable resistors. They operate on a single-supply voltage of 2.7V to 5.5V and consume an ultra-low supply current of 0.1μA.
These devices consist of two fixed resistors with 256 digitally-controlled wiper contacts. A power-on reset (POR) sets the wiper to the midscale position at power-up. An easy-to-use up/down interface allows glitchless switching between resistor taps.

Features
Small-footprint packages (10-pin μMAX and 14-pin TSSOP)
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 resistor taps
Resistance values: 10kΩ, 50kΩ, 100kΩ

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