The MAX5439EUD+ is a ±15V low drift digital potentiometer in 14 pin TSSOP package. This device is a single 128 position high voltage digital potentiometer which performs the same function as mechanical potentiometer but replace the mechanics with a simple digital interface. It includes an on-chip high voltage uncommitted amplifier providing additional reduction in board space and cost. The resistor string uses its own analogue supplies (VDD and VSS) that require VDD - VSS to be greater than 9V and less than 31.5V which allows for greater flexibility in voltage ranges that can be used with the device.
Supply voltage range is 10V to 30V (single supply operation)
28V to -10V single negative supply operation
±5V to ±15V dual supply operation
Operating temperature range from -40°C to 85°C
Power-on reset, wiper goes to midscale (position 64)
Ratiometric temperature coefficient of 5ppm/°C
End to end resistance is 100Kohm at ±25% tolerance and temperature coefficient is 35ppm/°C
Glitchless switching between resistor taps
3-wire SPI/QSPI/MICROWIRE compatible serial interface
(EN)
