Texas Instruments ADS1147IPW

Description
The ADS1146, ADS1147, and ADS1148 are highly integrated, precision, 16-bit analog-to-digital converters (ADCs). They feature an onboard, low-noise, programmable gain amplifier (PGA), a precision delta-sigma ADC with a single-cycle settling digital filter, and an internal oscillator. The ADS1147 and ADS1148 also provide a built-in voltage reference with 10mA output capacity, and two matched programmable current digital-to-analog converters (DACs).
An input multiplexer supports four differential inputs for the ADS1148, two for the ADS1147, and one for the ADS1146. Additionally, the multiplexer has a sensor burnout detect, voltage bias for thermocouples, system monitoring, and general-purpose digital I/Os (ADS1147 and ADS1148). The onboard, low-noise PGA provides selectable gains of 1 to 128. The delta-sigma modulator and adjustable digital filter settle in only one cycle, enabling fast channel cycling when using the input multiplexer and supporting data rates up to 2kSPS. For data rates of 20SPS or less, both 50Hz and 60Hz interference are rejected by the filter.

Features
16 bits, no missing codes
Data output rates up to 2kSPS
Single-cycle settling for all data rates
Simultaneous 50/60Hz rejection at 20SPS
4 differential/7 single-ended inputs (ADS1148)
2 differential/3 single-ended inputs (ADS1147)
Matched current source DACs
Internal voltage reference
Sensor burnout detection
4/8 general-purpose I/Os (ADS1147/8)
Internal temperature sensor
Power supply and VRF monitoring (ADS1147/8)
Self and system calibration
SPI-compatible serial interface
Analog supply operation: 2.7V to 5.25V unipolar, ±2.5V bipolar
Digital supply: 2.7V to 5.25V
Operating temperature: -40°C to 125°C

Applications
Temperature measurement (RTDs, thermocouples, and thermistors)
Pressure measurement
Industrial process control