Product category: Analogue and Mixed Signal ICs
News Release from: Microchip Technology | Subject: MCP3221
Edited by the Electronicstalk Editorial Team on 30 August 2002
Frugality first for 12bit ADC
Microchip's new 12bit, low power A/D convertor with I2C interface is available in a tiny SOT-23 package
The MCP3221 is a successive approximation 12bit A/D convertor with a two-wire serial, I2C-compatible interface. The 400kHz fast mode of the I2C interface enables sampling rates up to 22.3Ksample/s for higher bandwidth signals. Low current design permits operation with typical standby and active currents of only 5nA and 175uA, respectively.
This article was originally published on Electronicstalk on 30 August 2002 at 8.00am (UK)
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With its small size and 12bit resolution for high accuracy, the MCP3221 is ideal for low power operation in remote, portable or battery powered applications.
With the MCP3221, it is also possible to have a single I2C bus while addressing up to eight different devices.
The MCP3221 features single supply operation over a broad voltage range (2.7 to 5.5V).
It offers onboard sample and hold circuitry in addition to self-timed conversions.
For the given 12bit accuracy, this device consumes less power than nearly every 12bit A/D convertor on the market.
The standard industrial temperature range ensures that the device will work well in industrial systems and extreme temperatures environments.
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