ADS1131IDR

Analog To Digital Converters (ADC) Overview

The ADS1131IDR is an 18-bit Analog-to-Digital Converter (ADC) designed for bridge sensor applications, manufactured by Texas Instruments. It utilizes a sigma-delta architecture and features a single-ended input configuration. The device supports both I2C and SPI digital interfaces for data communication. It operates on analog and digital supply voltages ranging from 2.7 V to 5.3 V. Key performance metrics include a maximum sampling rate of 80 samples per second, a differential nonlinearity (DNL) of ±1 LSB, and an integral nonlinearity (INL) of ±20 ppm. The component is housed in an 8-pin SOIC package and functions within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated oscillator for precise timing control
• Built-in rejection capability for 50 Hz and 60 Hz power line interference
• External reference voltage support for enhanced accuracy

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high-precision bridge sensor readout
• Weigh scales and force measurement instrumentation
• Pressure transducer signal conditioning

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'IDR' confirms the industrial temperature grade (-40°C to +85°C) and the SOIC-8 tape-and-reel packaging format. Ensure compatibility with the required I2C or SPI bus speeds and confirm that the external reference voltage requirements align with the system design constraints before finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an 18-bit resolution is sufficient for bridge sensor applications, offering a balance between performance and power consumption compared to higher-resolution alternatives. Consider the single-ended input limitation versus differential options if noise immunity is critical. Verify that the 80 S/s data rate meets the dynamic response requirements of the target application.

Analog To Digital Converters (ADC) Part Context

The ADS1131 belongs to the ADS113x family of precision ADCs from Texas Instruments, specifically optimized for low-power, high-resolution bridge sensor measurements. It serves as a counterpart to the ADS1130, differing primarily in interface capabilities and pinout configurations. This series is widely used in metrology and industrial sensing where stability and linearity are paramount.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS1130 is a related part within the same family; verify pin compatibility and interface differences before substitution. Other ADS113x variants may offer different resolutions or input types but require validation of electrical specifications against the current design requirements.