The ADS1232/ADS1234 are 24-bit analog-to-digital converters (ADCs) with an onboard, low-noise programmable gain amplifier (PGA), precision delta-sigma ADC and internal oscillator, providing a complete front-end solution for bridge sensor applications including weigh scales, strain gauges and pressure sensors.
The ADS1232 and ADS1234 are 24‑bit analog‑to‑digital converters designed for bridge‑sensor applications such as weigh scales, strain gauges and pressure sensors. Both devices integrate a low‑noise programmable gain amplifier, an internal oscillator, and a temperature sensor (ADS1232) with selectable gains of 1, 2, 64 or 128.
The datasheet provides electrical characteristics, absolute maximum ratings, pin configurations, noise performance tables, and mechanical dimensions. It also includes ordering information, handling precautions, and TI’s standard warranty notice.
| Supply voltage range | 2.7 V to 5.3 V |
|---|---|
| Resolution | 24 bits (effective 23.5 bits) |
| Selectable gains | 1, 2, 64, 128 |
| Data rates | 10 SPS or 80 SPS |
| RMS noise (10 SPS, PGA = 128) | 17 nV |
| Package (ADS1232) | TSSOP‑24 |
| Package (ADS1234) | TSSOP‑28 |
The devices operate from 2.7 V up to 5.3 V.
Both ADCs can be set to 10 samples per second or 80 samples per second.
The PGA can be programmed to a gain of 1, 2, 64, or 128.
The RMS noise is 17 nV under those conditions.