Texas Instruments ADS1120IRVAT

Description
The ADS1120 is a precision, 16-bit analog-to-digital converter (ADC) designed for measuring small sensor signals. It features:
Two differential or four single-ended inputs
Programmable gain amplifier (PGA) with gains up to 128 V/V
Two programmable excitation current sources (50 μA to 1.5 mA)
Internal 2.048-V reference with 5 ppm/°C drift
Internal 2% accurate oscillator
Internal temperature sensor with 0.5°C accuracy
SPI compatible interface
Low power consumption (120 μA in duty-cycle mode)

Features
Low current consumption (120 μA in duty-cycle mode)
Wide supply range (2.3 V to 5.5 V)
Programmable gain (1 V/V to 128 V/V)
Programmable data rates (up to 2 kSPS)
16-bit noise-free resolution at 20 SPS
Simultaneous 50-Hz and 60-Hz rejection at 20 SPS with single-cycle settling digital filter
Two differential or four single-ended inputs
Dual-matched programmable current sources (50 μA to 1.5 mA)
Internal 2.048-V reference (5 ppm/°C drift)
Internal 2% accurate oscillator
Internal temperature sensor (0.5°C accuracy)
SPI compatible interface (Mode 1)
Package: 3.5-mm x 3.5-mm x 0.9-mm VQFN

Applications
Temperature sensor measurements (thermistors, thermocouples, RTDs)
Resistive bridge sensor measurements (pressure sensors, strain gauges)
Weigh scales
Portable instrumentation
Factory automation and process controls