Microchip recently announced the MCP4017/8/9 (MCP401X) family of I²C digital potentiometers. The low-power 7-bit devices feature static current consumption of just 2,5 μA and are specified over the extended industrial temperature range of
-40°C to 125°C. They are available in 5- and 6-pin SC-70 packages.
Unlike mechanical potentiometers, the MCP401X devices can be controlled digitally, through an I²C interface. This eliminates the need for human interaction, which increases system reliability, accuracy, flexibility and manufacturing throughput while decreasing manufacturing costs. Digital control also provides more system flexibility than mechanical control. Additionally, their low static current consumption helps to extend battery life in a variety of consumer and industrial applications.
Key consumer and industrial applications for the MCP401X digital potentiometers include power-supply trim and calibration, set-point and process control, closed-loop servo control, PC peripherals, portable instrumentation, instrumentation offset adjust and signal conditioning.
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