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Digital potentiometers consume 0.3 microamps

Chandler, Ariz. — Microchip Technology Inc. announced a family of low-power, low-voltage, 6-bit digital potentiometers that are said to be cost and size competitive with mechanical versions.

Available in 5- and 6-pin SOT-23 and 2 x 3-mm DFN packages, the MCP4011 – MCP4014 digital potentiometers can be used in handheld equipment and portable applications including sensor calibration and trimming, set-point control, test and measurement, industrial process control, consumer electronics and data acquisition.

The pots feature power consumption of 0.3 microamps (typical) and 1.8-volt operation. Additional features of the digital potentiometers include integral non-linearity (INL) of 1/2 least significant bit (LSB) maximum, differential non-linearity (DNL) of 1/2 LSB (maximum), end-to-end temperature coefficient of 100 ppm (typical), and ratiometric temperature coefficient of 10 ppm (typical). The devices operate in the extended industrial temperature range of -40°C to +125°C.

An evaluation board (MCP402XEV) is available for $15.00. In addition, Microchip offers the FilterLab 2.0 active filter design tool that simplifies active-filter design.

Click here for Microchip’s free FilterLab software, which provides full schematic diagrams of the filter circuit with component values, and displays the frequency response.

   
See related block diagram

The MCP4011, MCP4012, MCP4013, and MCP4014 are available now. The MCP4011 is offered in 8-pin, 2 x 3-mm DFN, MSOP and SOIC packages. The MCP4012 and MCP4013 are each available in a 6-pin SOT-23 package, and the MCP4014 is available in a 5-pin SOT-23 package. Pricing for all devices and package options is 36 cents each in 10,000-unit quantities. Click here for the MCP401X data sheets.

Microchip Technology Inc. , 1-888-628-6247, www.Microchip.com.

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