The MAX11644/MAX11645 low-power, 12-bit, 1-/2-
channel analog-to-digital converters (ADCs) feature
internal track/hold (T/H), voltage reference, clock, and
an I2C-compatible 2-wire serial interface. These
devices operate from a single supply of 2.7V to 3.6V
(MAX11645) or 4.5V to 5.5V (MAX11644) and require
only 670μA at the maximum sampling rate of 94.4ksps.
Supply current falls below 230μA for sampling rates
under 40ksps. AutoShutdown? powers down the
devices between conversions, reducing supply current
to less than 1μA at low throughput rates. The
MAX11644/MAX11645 each measure two single-ended
or one differential input. The fully differential analog
inputs are software configurable for unipolar or bipolar,
and single-ended or differential operation.