Overview
The ADS1232IPW from Texas Instruments is a high-precision, 24-bit analog-to-digital converter (ADC) designed specifically for bridge sensors. This device is part of the ADS123x family, which includes the ADS1232 and ADS1234 models. The ADS1232IPW is optimized for applications requiring high accuracy and low noise, making it suitable for various industrial and measurement applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 24-bit | |
| Effective Resolution at Gain = 1 | 23.5 bits | |
| Noise-Free Resolution at Gain = 64 | 19.2 bits | |
| Selectable Gains | 1, 2, 64, 128 | |
| RMS Noise at 10 SPS, Gain = 128 | 17 nV | |
| RMS Noise at 80 SPS, Gain = 128 | 44 nV | |
| Simultaneous 50-Hz and 60-Hz Rejection | 100 dB | |
| Data Rates | 10 SPS, 80 SPS | |
| Supply Voltage Range | 2.7 V to 5.3 V | V |
| Operating Temperature Range | -40°C to +105°C | °C |
| Package Type | TSSOP-24 |
Key Features
- Complete front-end for bridge sensors with a low-noise programmable gain amplifier (PGA) and a precision delta-sigma ADC.
- Selectable gains of 1, 2, 64, and 128.
- High resolution and low noise performance, with 23.5 bits effective resolution at gain = 1 and 19.2 bits noise-free resolution at gain = 64.
- Flexible clocking options including a low-drift internal oscillator and an optional external crystal.
- Selectable 10-SPS or 80-SPS data rates.
- Easy ratiometric measurements with an external voltage reference up to 5 V.
- Two-channel differential input with an internal temperature sensor (ADS1232).
- Two-wire serial interface for data communication.
- ESD protection for analog and reference inputs.
Applications
- Weigh scales
- PLC weight modules
- Pressure sensors
Q & A
- What is the resolution of the ADS1232IPW ADC?
The ADS1232IPW has a 24-bit resolution. - What are the selectable gains of the ADS1232IPW?
The ADS1232IPW has selectable gains of 1, 2, 64, and 128. - What is the RMS noise at 10 SPS with a gain of 128?
The RMS noise at 10 SPS with a gain of 128 is 17 nV. - What is the simultaneous 50-Hz and 60-Hz rejection of the ADS1232IPW?
The ADS1232IPW has a simultaneous 50-Hz and 60-Hz rejection of 100 dB. - What are the data rates supported by the ADS1232IPW?
The ADS1232IPW supports data rates of 10 SPS and 80 SPS. - What is the supply voltage range of the ADS1232IPW?
The supply voltage range of the ADS1232IPW is from 2.7 V to 5.3 V. - What is the operating temperature range of the ADS1232IPW?
The operating temperature range of the ADS1232IPW is from -40°C to +105°C. - Does the ADS1232IPW have internal temperature sensing capability?
Yes, the ADS1232IPW has an internal temperature sensor. - How is the data communicated from the ADS1232IPW?
The data is communicated through a two-wire serial interface. - What kind of protection does the ADS1232IPW have for its inputs?
The ADS1232IPW has ESD protection for its analog and reference inputs.
