TI ADS126x High Resolution, 32-bit, 38-kSPS, ADC

Product Description

The ADS1262 and ADS1263 analogue-to-digital converters feature low noise, low drift, 38.4-kSPS and delta-sigma (ΔΣ) conversion with an integrated PGA, reference, and internal fault monitors.

The ADS1263 integrates an auxiliary, 24-bit, ΔΣ ADC intended for background measurements. The sensor-ready ADCs provide complete, high-accuracy, one-chip measurement solutions for the most demanding sensor applications, including weigh scales, strain-gauge sensors, thermocouples and resistance temperature devices (RTD).

These devices feature a low-noise, CMOS PGA (gains 1 to 32), a ΔΣ modulator, followed by a programmable digital filter. The flexible analogue front-end (AFE) incorporates two sensor-excitation current sources suitable for direct RTD measurement.

A single-cycle settling digital filter maximises multiple-input conversion throughput, while providing 130dB rejection of 50-Hz and 60-Hz line cycle interference.

The ADS1262 and ADS1263 are pin and functional compatible. They are available in a 28-pin TSSOP package and are fully specified over the –40°C to +125°C temperature range.

Applications include

• high-resolution PLCs;
  Temperature and pressure measurement;
  
• weighing scales; strain-gauge digitisers;
  
• panel meters and chart recorders;
  analytical instrumentation.