Analogue, Mixed Signal, LSI


Low power 12 bit ADC

25 September 2002 Analogue, Mixed Signal, LSI

Microchip's MCP3221 low-power 12 bit successive approximation ADC with I2C interface is available in tiny SOT-23 package. 400 kHz fast mode enables sampling rates up to 22,3 kSa/s for higher bandwidth signals. Typical standby and active currents are only 5 nA and 175 µA resp. The device makes it possible to have a single I2C bus while addressing up to eight different devices. It features single supply operation over 2,7 to 5,5 V, and offers on-board sample and hold circuitry in addition to self-timed conversions. For given 12 bit accuracy it consumes less power industry standard. Operates within standard industrial temperature range.

Avnet Kopp, 011 809 6100

Memec SA, 021 674 4103

Tempe Technologies, 011 452 0530



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