ADS1261IRHBR

Overview

The ADS1261IRHBR is a 24-bit analog-to-digital converter (ADC) from Texas Instruments, utilizing delta-sigma architecture. It features a 32-VQFN package with dimensions of 5x5 mm and supports surface-mount installation. The device offers 10 input channels compatible with differential and single-ended configurations. It operates with an analog supply voltage range of 4.75V to 5.25V and a digital supply voltage range of 2.7V to 5.25V. The maximum sampling rate is 40k samples per second. Key integrated features include a programmable gain amplifier (PGA), internal and external reference options, and an SPI data interface. The component functions within a temperature range of -40°C to 125°C.

Feature Summary

• Integrates a multiplexer, programmable gain amplifier, and 24-bit ADC in a single chip for high-precision signal conditioning.
• Supports both differential and single-ended input types to accommodate various sensor interfaces.
• Includes internal and external reference capabilities for flexible voltage reference management.

Applications

• Industrial process control systems requiring high-resolution data acquisition.
• Weigh scales and load cell measurement applications.
• Medical instrumentation and diagnostic equipment.

Procurement Notes

Verify the specific suffix 'IRHBR' against the manufacturer's official datasheet to confirm pinout, packaging type, and electrical specifications match your design requirements. Ensure compatibility with the required operating temperature range and power supply voltages before finalizing procurement decisions.

Selection Notes

Select this component when a high channel count (10 inputs) and 24-bit resolution are required in a compact footprint. Compare against the ADS1260 if fewer channels are sufficient, or consider the ADS1261B variant if specific performance enhancements documented in the datasheet are necessary for the application.

Part Context

This part belongs to the ADS126x family of precision ADCs from Texas Instruments. It shares architectural similarities with the ADS1260 but provides additional input channels. The IRHBR suffix indicates the industrial temperature grade and reel packaging format, distinguishing it from other variants like the IRT or B-series parts.

Replacement Considerations

The ADS1261IRHBT is a parameter-equivalent alternative available in tape-and-reel packaging. Verify that the package outline and pin configuration remain identical to ensure mechanical compatibility during replacement.