1 Features
• Low power consumption (as low a 57μA)
• Wide supply voltage range:
– Analog: 1.74V to 3.6V
– Digital: 1.65V to 3.6V
• Programmable gain: 0.5 to 256
• Programmable data rate (up to 64kSPS) and
speed mode to trade power consumption and
noise performance
• Simultaneous 50Hz and 60Hz rejection at 20 or
25SPS with single-cycle settling digital filter
• Analog multiplexer with 8 independently selectable
inputs
• Dual-matched programmable current sources
• Internal programmable voltage reference:
1.25V or 2.5V with 25ppm/°C (max) drift
• Internal 1% (max) accurate oscillator
• Internal temperature sensor
• Four general-purpose I/Os (push-pull or opendrain
output)
• I2C-compatible interface with optional CRC
• Supported I2C bus speeds: Sm, Fm, Fm+
• Eight pin-programmable I2C addresses

2 Applications
• Field transmitters:
Temperature, pressure, strain, flow
• PLC and DCS analog input modules
• Temperature controllers
• Patient monitoring systems:
Body temperature, blood pressure

3 Description
The ADS1x2C14 are precision, low-power, 16- and
24-bit, analog-to-digital converters (ADCs) that offer
many integrated features to reduce system cost
and component count in the most common sensor
measurement applications. The devices feature eight
analog inputs through a flexible input multiplexer
(MUX), a low-noise, programmable gain amplifier
(PGA), a programmable low-drift voltage reference,
two programmable excitation current sources, an
oscillator, and a temperature sensor.
Four speed modes, with programmable output data
rates from 20SPS up to 64kSPS, allow to optimize
power consumption and noise performance for each
application. At output data rates of 20SPS and
25SPS, the integrated digital filter offers simultaneous
50Hz and 60Hz line-cycle rejection with single-cycle
settling.