Overview
The ADS1232IPWG4, produced by Texas Instruments, is a precision 24-bit analog-to-digital converter (ADC) designed specifically for bridge sensor applications. This component is part of the ADS123x series, which includes the ADS1232 and ADS1234 models. The ADS1232IPWG4 provides a complete front-end solution for applications such as weigh scales, strain gauges, and pressure sensors. It features a low-noise programmable gain amplifier (PGA), a precision delta-sigma ADC, and an internal oscillator, making it highly suitable for high-accuracy measurements.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 23.5 bits (effective at gain = 1), 19.2 bits (noise-free at gain = 64) | - |
| Selectable Gains | 1, 2, 64, 128 | - |
| RMS Noise | 17 nV at 10 SPS at gain = 128, 44 nV at 80 SPS at gain = 128 | nV |
| Simultaneous 50-Hz and 60-Hz Rejection | 100 dB | dB |
| Data Rates | 10 SPS or 80 SPS | SPS |
| Supply Voltage Range | 2.7 V to 5.3 V | V |
| Temperature Range | –40°C to +105°C | °C |
| Package Type | TSSOP-24 | - |
| Input Channels | 2 differential inputs | - |
| Internal Temperature Sensor | Yes | - |
Key Features
- Complete front-end solution for bridge sensors
- Low-noise programmable gain amplifier (PGA)
- Precision delta-sigma ADC
- Internal oscillator with optional external crystal
- Selectable gains of 1, 2, 64, and 128
- High resolution: 23.5 bits effective at gain = 1, 19.2 bits noise-free at gain = 64
- Low RMS noise: 17 nV at 10 SPS at gain = 128, 44 nV at 80 SPS at gain = 128
- 100-dB simultaneous 50-Hz and 60-Hz rejection
- Selectable 10-SPS or 80-SPS data rates
- External voltage reference up to 5 V
- Two-channel differential input with internal temperature sensor
- Two-wire serial interface
Applications
- Weigh scales
- PLC weight modules
- Pressure sensors
- Strain gauges
Q & A
- What is the resolution of the ADS1232IPWG4?
The ADS1232IPWG4 has an effective resolution of 23.5 bits at gain = 1 and 19.2 bits noise-free resolution at gain = 64.
- What are the selectable gains of the ADS1232IPWG4?
The ADS1232IPWG4 has selectable gains of 1, 2, 64, and 128.
- What is the RMS noise of the ADS1232IPWG4?
The RMS noise is 17 nV at 10 SPS at gain = 128 and 44 nV at 80 SPS at gain = 128.
- What is the simultaneous 50-Hz and 60-Hz rejection of the ADS1232IPWG4?
The simultaneous 50-Hz and 60-Hz rejection is 100 dB.
- What are the data rates supported by the ADS1232IPWG4?
The data rates are selectable at 10 SPS or 80 SPS.
- What is the supply voltage range of the ADS1232IPWG4?
The supply voltage range is from 2.7 V to 5.3 V.
- What is the temperature range of the ADS1232IPWG4?
The temperature range is from –40°C to +105°C.
- What type of package does the ADS1232IPWG4 come in?
The ADS1232IPWG4 comes in a TSSOP-24 package.
- Does the ADS1232IPWG4 have an internal temperature sensor?
Yes, the ADS1232IPWG4 includes an internal temperature sensor.
- What are the typical applications of the ADS1232IPWG4?
The typical applications include weigh scales, PLC weight modules, pressure sensors, and strain gauges.
