ADS124S08 Datasheet | Texas Instruments

Features - 1 Low Power Consumption: As Low as 280 µA - Low-Noise PGA: 19 n VRMS at Gain = 128 - Programmable Gain: 1 to 128 - Programmable Data Rates: 2.5 SPS to 4 k SPS - Simultaneous 50-Hz and 60-Hz Rejection at ≤ 20 SPS with Low-Latency Digital Filter - Analog Multiplexer with 12 (ADS124S08) or 6 (ADS124S06) Independently Selectable Inputs - Dual-Matched Programmable Current Sources for Sensor Excitation: 10 µA to 2000 µA - Internal Reference: 2.5 V, 10 ppm/°C (max) Drift - Internal Oscillator: 4.096 MHz, 1.5% Accuracy - Internal Temperature Sensor - Extended Fault Detection Circuits - Self Offset and System Calibration - Four General-Purpose I/Os - SPI-patible Interface with Optional CRC - Analog Supply: Unipolar (2.7 V to 5.25 V) or Bipolar (±2.5 V) - Digital Supply: 2.7 V to 3.6 V - Operating Temperature: - 50°C to +125°C 2 Applications - Sensor Transducers and Transmitters: Temperature, Pressure, Strain, Flow - PLC and DCS Analog Input Modules - Temperature Controllers - Climate Chambers, Industrial Ovens 3 Description The ADS124S06 and ADS124S08 are precision, 24bit, delta-sigma (ΔΣ), analog-to-digital converters (ADCs) that offer low power consumption and many integrated features to reduce system cost and ponent count in applications measuring smallsignal sensors. These ADCs feature configurable digital filters that offer low-latency conversion results and 50-Hz or 60-Hz rejection for noisy industrial environments. A low-noise, programmable gain amplifier (PGA) provides gains ranging from 1 to 128 to amplify lowlevel signals for resistive bridge or thermocouple applications. Additionally, these devices integrate a low-drift, 2.5-V reference that reduces printed circuit board (PCB) area. Finally, two programmable excitation current sources (IDACs) allow for easy and accurate RTD biasing. An input multiplexer supports 12 inputs for the ADS124S08 and six inputs for the ADS124S06 that can be connected to the ADC in any bination for design flexibility. In...