Maxim Integrated MAX5410EEE

Description
The MAX5408-MAX5411 are dual, logarithmic taper digital potentiometers with 32-tap points each. They replace mechanical potentiometers in audio applications requiring digitally controlled resistors. The MAX5408/MAX5410 are dual potentiometers with one wiper per potentiometer. The MAX5409/MAX5411 are dual potentiometers with two wipers per potentiometer. An SPI-compatible serial interface controls the wiper positions. The MAX5408-MAX5411 have a factory-set resistance of 10k per potentiometer. A zero-crossing detect feature minimizes the audible noise generated by wiper transitions. The MAX5408-MAX5411 have nominal temperature coefficients of 35ppm/°C end-to-end and 5ppm/°C ratiometric. They are available in 16-pin QSOP and 16-pin thin QFN packages and are specified over the extended temperature range (-40°C to 85°C).

Features
Log taper with 2dB steps between taps
32-tap positions for each wiper
Small 16-pin QSOP/QFN packages
Single-supply voltage operation
2.7V to 3.6V (MAX5408/MAX5409)
4.5V to 5.5V (MAX5410/MAX5411)
Low 0.5μA standby supply current
Zero-crossing detection for clickless switching
Mute function to -90dB
10kΩ fixed resistance value
3-wire SPI-compatible serial data interface
Power-on reset: Wiper goes to maximum attenuation
Digital output for readback and daisy-chaining capabilities

Applications
Stereo volume control
Fading and balancing stereo signals
Mechanical potentiometer replacement