The MAX5457EEE+ is a dual, stereo audio logarithmic taper potentiometer with pushbutton interface in 16 pin QSOP package. MAX5457 has 32-tap points and feature a simple pushbutton interface that controls volume and balance in audio applications. This device has a SmartWiper control which eliminates the need for a microcomputer to increase the wiper transition rate and hold the control input low for more than 1s which advances the wiper at a rate of 4Hz for 4s and 16Hz per second. The device has 3-button interface with a MODE input that toggles between volume and balance control modes.
Supply voltage range is 2.7V to 5.5V
Operating temperature range from -40°C to 85°C
Smartwiper control provides accelerated wiper motion
Debounced pushbutton interface with internal pull-up resistors
Logarithmic taper with 2dB steps between taps
low 0.5μA standby supply current
Clickless switching
Mute function to -90dB (typ)
Power-on reset to -12dB wiper position
End to end resistance is 10Kohm at ±30% tolerance and temperature coefficient is 50ppm/°C