Date: 15/11/2008

High-resolution, low-power delta-sigma analog-to-digital converters

Microchip Technology announced a new series of low-power, high-resolution delta-sigma analog-to-digital converters (ADCs). The MCP3422, MCP3423 and MCP3424 ADCs provide 18-bits of resolution and consume only 135 micro Amperes at 3V continuous conversion.

These multi-channel devices have an integrated voltage reference, Programmable Gain Amplifier (PGA) and oscillator onboard, which are ideal for portable measurement applications in the industrial, medical, consumer and automotive markets, among others.

The wide range of applications for MCP3422/3/4 ADCs are industrial (portable weigh scales, instrumentation, handheld meters and multimeters), medical (portable heart-rate monitors, blood-pressure monitors and glucose meters), consumer (weigh scales, handheld meters); and automotive markets (sensor interfaces, fuel gauges).

Packaging & Pricing:

1. The MCP3422 ADC is available in 8-pin SOIC, MSOP and 2 mm x 3 mm DFN packages for $2.06 each in 10K-unit quantities.
2. The MCP3423 ADC is available in 10-pin MSOP and 3 mm x 3 mm DFN packages, for $2.22 each in 10K -unit quantities.
3. The MCP3424 ADC is available in 14-pin TSSOP and SOIC packages, for $2.80 each in 10K-unit quantities.

Availability: Free samples of all of the devices are available now

For more information, visit the Microchip website at www.microchip.com