Part Number: ADS1231IDR

Manufacturer: Texas Instruments


Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of ADS1231IDR

Datasheet  ADS1231IDR datasheet
Category Integrated Circuits (ICs)
Family Data Acquisition – Analog to Digital Converters (ADC)
Manufacturer Texas Instruments
Packaging Tape & Reel (TR)
Part Status Active
Number of Bits 24
Sampling Rate (Per Second) 80
Number of Inputs 1
Input Type Differential
Data Interface SPI
Configuration ADC
Ratio – S/H:ADC
Number of A/D Converters 1
Architecture Sigma-Delta
Reference Type External
Voltage – Supply, Analog 3 V ~ 5.3 V
Voltage – Supply, Digital 3 V ~ 5.3 V
Operating Temperature -40°C ~ 85°C
Package / Case 16-SOIC (0.154″, 3.90mm Width)
Supplier Device Package 16-SOIC


In the world of analog-to-digital conversion, accuracy, and precision are of the utmost importance, especially when bridge sensors like weigh scales, strain gauges, and load cells are used. The ADS1231IDR is a remarkable 24-bit analog-to-digital converter (ADC) that can handle all of these demanding tasks with a single chip. In this detailed guide, we’ll look at the ADS1231IDR’s features, specs, and uses, as well as how it can be used to make accurate and reliable measures.

Understanding the ADS1231IDR

Overview of Features

The ADS1231IDR is a front-end solution that combines several important parts for reliable bridge sensor measurements:

● Low-Noise Amplifier

With a gain of 128, the onboard amplifier can handle a full-scale differential input of 19.5 mV. This helps to make small sensor data louder without adding too much noise.

● Oscillator and Modulator

An accurate third-order 24-bit delta-sigma modulator is built into the device. When used with an internal oscillator, this modulator is a key part of turning analog signals into digital data with high clarity and accuracy.

● Digital Filter

The ADC uses a digital filter with a fourth-order, which improves the quality of the data that is being changed. This filter helps reduce noise and improve the ratio of information to noise.

● Bridge Power Switch

The onboard bridge power switch makes it easier to connect and control bridge sensors by streamlining how they talk to each other.

By pointing out the good things about each part, you can get a clear picture of how the ADS1231IDR improves the accuracy of readings. The low-noise amplifier keeps outside noises to a minimum, the oscillator and modulator work together for smooth conversion, the digital filter makes sure the data is clean, and the bridge power switch makes the whole process easier. This gives measurements accuracy and precision that can’t be matched.

Data Rate and Power Modes

The ADS1231IDR is not only very accurate, but it also has data rates and power modes that can be changed to fit different needs.

Data Rate Options

  • 10SPS with 50Hz/60Hz Rejection: This data rate choice is very helpful in places where interference from 50Hz or 60Hz power lines could mess up measurements. The ADS1231IDR rejects these frequencies in a smart way, making sure that they don’t mess up the recorded data.
  • 80SPS: When speed is very important, the gadget can work at an impressive 80 samples per second data rate. This faster data rate helps in situations where measurements need to be made quickly and continuously.

Power Modes

  • Low-Power Standby Mode: The ADS1231IDR can go into a low-power standby mode when only a few readings need to be taken. In this mode, it saves energy while still working, which is great for situations where data collection is done only occasionally.
  • Power-Down Mode: The power-down mode is a useful tool for situations where saving power is very important. By turning off the gadget completely, the least amount of power is used. This is a smart choice when saving energy is the most important thing.

Users can make the ADS1231IDR work best for them by choosing from the different dynamic data rate choices and power modes. Whether it’s dealing with interference, putting speed first, or saving power, the device changes easily, which shows how versatile and effective it is.

Control and Integration

The ADS1231IDR is designed to be easy to use and to work well with other systems. This makes it less complicated and more efficient.

● Control Mechanism through Dedicated Pins

Controlling the ADS1231IDR is easy because it has specific pins instead of digital registers that require complicated programming. This easy-to-understand method makes it easier for the user to use the device. By using these pins, users can easily control different functions, configurations, and actions without having to learn complicated programming.

● Serial Interface for Seamless Integration

The serial link is the most important part of the ADS1231IDR’s ability to work with other devices. This interface lets you talk to microcontrollers like the popular MSP430 in a direct and easy-to-isolate way. The serial port is a way for data to be sent, so the device can talk to microcontroller systems without any problems.

The plug-and-play nature of the device is shown by the fact that the serial port works with microcontrollers like the MSP430. This makes integration much easier. This simplified process makes sure that users can use the ADS1231IDR’s power without having to deal with complicated setups. This makes it a great choice for applications that need to be set up quickly and give reliable results.

Strain Gauges

Strain gauges are one of the most important tools for figuring out how a structure will behave when it is under stress.

● Accurate Strain Capture with the ADS1231IDR

The ADS1231IDR makes strain gauge applications better because it can correctly measure even the smallest changes in strain. The gadget makes sure that measurements are accurate because it has a 24-bit resolution and a low-noise amplifier. This accuracy is important for tasks like analyzing structures and testing materials, where small changes can show important information about the materials’ strength and how well they work. Because strain gauges and the ADS1231IDR work well together, engineers can make better decisions and make buildings more reliable.

Precision and Integration Capabilities with the ADC

The ADS1231IDR fits perfectly with the needs of load cell systems and offers two very useful features:

  • Precision: Load cells need precise numbers because even small mistakes can lead to big differences. The 24-bit precision and low-noise amplifier of the ADS1231IDR shine here, letting it pick up even the smallest changes in force or load. This level of accuracy gets rid of mistakes and lets businesses make decisions based on accurate data.
  • Integration: In the world of load cell devices, it’s important that the parts fit together well. This integration process is made easier by the serial port of the ADC and its ability to work with microcontrollers like the MSP430. This synergy makes sure that data from load cells is captured, sent, and processed in an efficient way. This makes processes run more smoothly and helps people make better decisions.

With its combination of accuracy and integration, the ADS1231IDR solidifies its place as a valuable part of load cell systems. Measurements that can be trusted help industries improve their processes, keep a better eye on quality, and, in the end, run more efficiently. As applications for load cells keep getting better, the ADS1231IDR is ready to provide the accuracy and reliability that these businesses need.


The ADS1231IDR is more than just a list of features; it is a trusted partner in difficult measurement settings. Because of its features, accuracy, and ability to work well with other things, it is a sign of reliability. As technologies change and accuracy becomes more important, the ADS1231IDR stands out as an important tool for making accurate measurements in bridge sensor applications. Contact ICRFQ, China’s leading seller of electrical components, for more information and to place an order.

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