Chandler, Ariz. Microchip Technology Inc. has released the MCP4141/2, MCP4241/2, MCP4161/2 and MCP4261/2 (MCP41XX/42XX) non-volatile digital potentiometers with SPI interfaces. The 7- and 8-bit devices are specified over the extended industrial temperature range of -40° to 125°. They are available in several industry-standard packages, including the 3 x 3-mm DFN package.
Unlike mechanical potentiometers, the MCP41XX/42XX devices can be controlled digitally through an SPI interface. This is said to 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 5 microamperes (maximum) helps to extend battery life.
The MCP41XX/42XX digital potentiometers are suitable for a variety of consumer and industrial applications such as power-supply trim and calibration, set-point and process control, closed-loop servo control, PC peripherals, portable instrumentation, instrumentation offset adjust and signal conditioning.
Pricing: All in quantities of 10,000 for all package options: The MCP4141/2 (8-pin SOIC, MSOP, PDIP and 3 x 3-mm DFN packages) is priced at $0.58 each; the MCP4241 (10-pin 4 x 4 mm QFN package and 14-pin SOIC, PDIP, TSSOP packages) is priced at $0.76 each; the MCP4242 (8-pin 3 x 3 mm DFN package, 10-pin MSOP package) is priced at $0.76 each; the MCP4161/2 (8-pin 3 x 3 mm DFN, MSOP, PDIP and SOIC packages) is priced at $0.69 each, and the MCP4261/2 (8-pin MSOP, PDIP, SOIC and 3 x 3 mm DFN packages) is priced at $.87 each.
Availability: Samples and volume production quantities can be ordered at http://sample.microchip.com and www.microchipdirect.com, respectively.
Microchip Technology Inc. , www.microchip.com