Product category:
Analogue and Mixed Signal ICs
News Release from: Microchip Technology | Subject: MCP3421
Edited by the Electronicstalk Editorial
Team on 22 December 2006
ADC raises resolution with six pins
Microchip has released a device it reckons is the highest resolution analogue-to-digital convertor available in a 6-pin SOT-23 package.
Microchip has released a device it reckons is the highest resolution analogue-to-digital convertor available in a 6-pin SOT-23 package The low-power, 18bit delta-sigma MCP3421 ADC features an integrated voltage reference, oscillator and programmable gain amplifier (PGA), which reduce the need for external components and enables a smaller overall design
This article was originally published on Electronicstalk on 10 Apr 2001 at 8.00am (UK)
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The MCP3421 ADC uses an I2C compatible serial interface, operates from a single power supply (2.7 to 5.5V), and consumes just 155uA during continuous conversion at 5V.
In addition, the device's onboard PGA allows users to select gains of x1, x2, x4 or x8 before the A/D conversion takes place, enabling very high-resolution conversion of even small input signals.
Example applications for the MCP3421 ADC include industrial products such as portable instrumentation, pressure sensors, weigh scales, handheld meters and multimeters; medical applications such as heart rate monitors and blood glucose meters; consumer applications such as weigh scales and handheld meters, and automotive sensor interfaces and fuel gauges.
Samples and evaluation boards for the MCP3421 are available now.
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