ADS131A04

Product Folder Order Now Technical Documents Tools & Software Support & Community ADS131A02, ADS131A04 SBAS590E – MARCH 2016 – REVISED JUNE 2020 ADS131A0x 2- or 4-Channel, 24-Bit, 128-kSPS, Simultaneous-Sampling, Delta-Sigma ADC 1 Features 1 2 or 4 simultaneous-sampling differential inputs Data rates up to 128 kSPS High performance: – Single-channel accuracy: better than 0.1% at 10,000:1 dynamic range – Effective resolution: 20.6 bits at 8 kSPS – THD: –100 dB at 50 Hz and 60 Hz Integrated negative charge pump allows absolute input voltages below ground Flexible analog power-supply operation: – Using negative charge pump: 3.0 V to 3.45 V – Unipolar supply: 3.3 V to 5.5 V – Bipolar supply: ±2.5 V Digital supply: 1.65 V to 3.6 V Low-drift internal voltage reference: 6 ppm/°C ADC self checks Cyclic redundancy check (CRC) and hamming code error correction on communications Multiple SPI data interface modes: – Asynchronous interrupt – Synchronous master and slave Package: 32-pin TQFP Operating temperature range: –40°C to +125°C 2 Applications Electricity meters: commercial and residential Circuit breakers Battery test equipment Battery management systems Data acquisition systems 3 Description The ADS131A02 and ADS131A04 devices are twoand four-channel, simultaneous-sampling, 24-bit, delta-sigma (ΔΣ), analog-to-digital converters (ADCs). The wide dynamic range, with scalable data rates up to 128 kSPS, and internal fault monitors make the ADS13...