Product category:
Analogue and Mixed Signal ICs
News Release from: Microchip Technology | Subject: MCP3550
Edited by the Electronicstalk Editorial
Team on 23 February 2006
22bit delta-sigma convertor is small and
frugal
The MCP3550 is billed as one of the lowest power, smallest analogue-to-digital convertors on the market with greater than 16bit resolution.
Microchip Technology announces the MCP3550, one of the lowest power, smallest analogue-to-digital (A/D) convertors on the market with greater than 16bit resolution This new 22bit delta-sigma device is available in an 8-pin MSOP package (3.1 x 3.1 x 1.18mm) and offers low typical operating current of only 120uA
This article was originally published on Electronicstalk on 10 Apr 2001 at 8.00am (UK)
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The MCP3550 features integral nonlinearity (INL) of +/-2ppm typical, maximum power consumption of 0.6mW at 5V, and output noise as low as 2.5uV RMS.
It rejects 50 or 60Hz noise greater than 120dB, which makes its measurements impervious to noise from power supplies at these line frequencies.
The result is highly accurate measurements and a high level of effective resolution for consumer, industrial, battery-powered and portable devices.
The MCP3550-50 (50Hz rejection) has a sample rate of 12.5sample/s and the MCP3550-60 (60Hz rejection) has a sample rate of 15sample/s.
Both versions offer auto calibration with every conversion, and an extended temperature range of -40 to +125C.
The new convertor targets a variety of applications, including: industrial (instrumentation, pressure sensors, weigh scales, handheld meters and multimeters); medical (heart-rate monitors and blood-glucose meters); consumer (weigh scales and handheld meters); and automotive (sensor interfaces).
Microchip offers the MCP3551 delta-sigma A/D convertor PICtail demonstration board to support development using the MCP3550.
It is priced at $40.
Samples and volume production of the MCP3550-50/60 are available now.
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