Digital Potentiometers With SPI Interface

Microchip has announced the MCP4141/2 and MCP4241/2 non-volatile digital potentiometers. The new 7- and 8-bit devices have an SPI interface and are specified over an extended temperature range of -40 to +125 degrees Celsius. Unlike mechanical potentiometers, the MCP41XX/42XX devices can be controlled digitally, via an SPI interface. This can increase system accuracy, flexibility and manufacturing throughput, while decreasing manufacturing costs. Non-volatile memory enables the devices to retain their settings at power down, and their low static current consumption of just 5 µA maximum helps to extend battery life. The MCP41XX/42XX digital potentiometers are ideal for a wide range of trimming, calibration, set-point, offset-adjust, signal conditioning and control applications.