ADS1247IPWR

The ADS1247IPWR is a precision 24-bit sigma-delta analog-to-digital converter (ADC) from Texas Instruments, designed for accurate sensor measurement. It features a 4-channel multiplexer, programmable gain amplifier (PGA), internal voltage reference, and dual matched programmable excitation current sources. This ADC is ideal for applications such as temperature, pressure, and strain gauge sensing.

Key electrical specifications include a maximum sample rate of 2 kSPS with single-cycle settling, simultaneous 50-Hz and 60-Hz rejection at 20 SPS, and a low-noise PGA achieving 48 nV RMS at a gain of 128. The internal 2.048-V reference offers a low drift of 10 ppm/°C (maximum). The device operates from 2.7 V to 5.25 V analog and digital supplies, with typical power consumption of 2.3 mW. The operating temperature range is -40°C to 105°C.

The ADS1247IPWR communicates via an SPI-compatible serial interface. It supports differential or single-ended inputs and includes features such as GPIO, an internal temperature sensor, oscillator, sensor burn-out detection, and self/system calibration. The device also includes dual current sources for excitation of resistive sensors.

The ADC is packaged in a 20-pin TSSOP (Thin Shrink Small Outline Package) with a body size of 6.5 mm × 6.4 mm, suitable for surface-mount assembly. The part is listed as RoHS3 compliant (unverified) and has an MSL of 1 (unlimited). Note that the datasheet is not directly linked; please verify all specifications from Texas Instruments official documentation.