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ADC in SOT-23 offers 'highest' resolution

Posted: 20 Dec 2006 ?? ?Print Version ?Bookmark and Share

Keywords:ADC? A/D converter? Microchip? measurement? ADCs?

Microchip Technology says its 18bit, delta-sigma ADC for portable measurement in industrial, medical, consumer and automotive applications is the highest-resolution ADC available in a SOT-23 package.

The chip includes a voltage reference and programmable gain amplifier (x1, x2, x4 or x8). The ADC uses an I?C compatible serial interface. The device features very low power consumptionjust 155?A at 5V. As such, it's suited for in-the-field products including pressure sensors, weigh scales, handheld meters, multimeters, heart rate monitors, blood glucose meters, weigh scales and fuel gauges.

Samples and production volumes of the MCP3421 ADC are available today. The device, in a 6-pin, SOT-23 package, is priced at $1.71 each in 10,000-unit quantities. Microchip also offers the MCP3421 Evaluation Board (MCP3421EV) to speed designs. It's available for $15.

- Vince Biancomano

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