The MAX5408MAX5411 dual, logarithmic taper digital potentiometers, with 32-tap points each, 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 (see Functional Diagram). An SPITM-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 MAX5408MAX5411 have nominal temperature coefficients of 35ppm/C end-to-end and 5ppm/C ratiometric. The MAX5408MAX5411 are available in 16-pin QSOP and 16-pin thin QFN packages and are specified over the extended temperature range (-40C to +85C).