Product category:
Analogue and Mixed Signal ICs
News Release from: Microchip Technology | Subject: MCP3551 and MCP3553
Edited by the Electronicstalk Editorial
Team on 30 November 2005
Delta-sigma convertors promise frugal
performance
Two new 22bit resolution delta-sigma A/D convertors are among the lowest in power consumption in the industry.
Microchip announces the MCP3551 and MCP3553 delta-sigma, analogue-to-digital (A/D) convertors with 22bit resolution These devices are among the lowest in power consumption in the industry (120uA typical) and are available in 8-pin MSOP packages (3.1 x 3.1 x 1.18mm), making them one of the smallest high-resolution A/D convertors on the market today
This article was originally published on Electronicstalk on 10 Apr 2001 at 8.00am (UK)
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These delta-sigma devices further expand Microchip's broad line of SAR, dual-slope, and display A/D convertors.
In addition to their low power consumption (0.85mW maximum at 5V), these devices offer integral nonlinearity (INL) of +/-2ppm typical and output noise as low as 2.5uV RMS.
They also offer auto calibration with every conversion, and an extended temperature range of -40 to +125C.
The MCP3551 has a sample rate of 13.75 samples per second and an effective resolution of 21.9bit, whereas the MCP3553 has a sample rate of 60 samples per second and an effective resolution of 20.6bit.
The MCP3551 and MCP3553 A/D convertors are ideal for applications including pressure sensors, weigh scales, handheld meters, heart rate monitors, blood glucose meters and automotive sensor interface.
To demonstrate these delta-sigma A/D convertors, Microchip is offering the MCP3551 delta-sigma ADC PICtail demonstration board at a price of $35.
The MCP3551 and MCP3553 are available today in Pb-free 8-pin MSOP and 8-pin SOIC packages.
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