Overview
The ADS1232IPWRG4, produced by Texas Instruments, is a 24-bit, delta-sigma analog-to-digital converter (ADC) designed specifically for bridge sensors. This device is part of the ADS123x family, which includes both two-channel (ADS1232) and four-channel (ADS1234) variants. The ADS1232IPWRG4 is optimized for high precision and low noise, making it suitable for applications requiring accurate measurements.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 24 bits |
| Effective Resolution at Gain = 1 | 23.5 bits |
| Noise-Free Resolution at Gain = 64 | 19.2 bits |
| Programmable Gain Amplifier (PGA) 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 or 80 SPS |
| Supply Voltage Range | 2.7 V to 5.3 V |
| Operating Temperature Range | –40°C to +105°C |
| Package | TSSOP-24 |
Key Features
- Complete front-end for bridge sensors
- Low-noise PGA with selectable gains of 1, 2, 64, and 128
- Flexible clocking options: low-drift internal oscillator or optional external crystal
- Selectable 10-SPS or 80-SPS data rates
- Easy ratiometric measurements with external voltage reference up to 5 V
- Two-channel differential input with internal temperature sensor
- Two-wire serial interface
- High rejection of 50-Hz and 60-Hz noise
Applications
- Weigh scales
- PLC weight modules
- Pressure sensors
Q & A
- What is the resolution of the ADS1232IPWRG4?
The ADS1232IPWRG4 has a 24-bit resolution. - What are the available gains for the PGA?
The PGA gains are 1, 2, 64, and 128. - What is the RMS noise at 10 SPS with a gain of 128?
The RMS noise is 17 nV at 10 SPS with a gain of 128. - What are the data rates supported by the ADS1232IPWRG4?
The device supports data rates of 10 SPS and 80 SPS. - What is the supply voltage range for the ADS1232IPWRG4?
The supply voltage range is from 2.7 V to 5.3 V. - What is the operating temperature range of the ADS1232IPWRG4?
The operating temperature range is from –40°C to +105°C. - What type of package does the ADS1232IPWRG4 come in?
The device comes in a TSSOP-24 package. - Does the ADS1232IPWRG4 have an internal temperature sensor?
Yes, the ADS1232IPWRG4 has an internal temperature sensor. - What is the rejection level for 50-Hz and 60-Hz noise?
The device has a 100 dB simultaneous rejection for 50-Hz and 60-Hz noise. - What are some common applications of the ADS1232IPWRG4?
Common applications include weigh scales, PLC weight modules, and pressure sensors.
