ADS1226IRGVR

Overview

The ADS1226IRGVR is a 24-bit analog-to-digital converter (ADC) manufactured by Texas Instruments, housed in a 16-VQFN package. It features a sigma-delta architecture with two differential or single-ended inputs and an integrated multiplexer. The device supports data rates up to 100 samples per second and communicates via an SPI-compatible digital interface. It operates on a single supply voltage ranging from 2.7V to 5.5V for both analog and digital domains. An internal temperature sensor is included for system monitoring. The component is designed for low-power applications requiring high resolution and precision signal acquisition.

Feature Summary

• Integrated 2-channel multiplexer supporting differential and single-ended input configurations
• Built-in programmable gain amplifier for direct signal conditioning
• On-chip temperature sensor for environmental monitoring
• Low-noise sigma-delta modulation architecture

Applications

• Industrial process control systems
• Portable battery-powered instrumentation
• Weight scales and load cell measurements
• Medical equipment signal acquisition

Procurement Notes

Verify the specific suffix 'RGVR' against the official datasheet to confirm package dimensions and tape-and-reel specifications. Ensure compatibility with existing PCB footprint designs, as VQFN packages require precise soldering profiles. Confirm RoHS compliance status for the specific manufacturing batch before integration into regulated assemblies.

Selection Notes

Select this component when high-resolution 24-bit performance is required at low data rates. The integrated multiplexer simplifies board layout for multi-channel sensors. Consider the operating temperature range of -40°C to 85°C for industrial environments. Evaluate power consumption requirements against the available supply voltage range to optimize battery life in portable devices.

Part Context

The ADS1226 belongs to the ADS122x family of low-power, 24-bit ADCs from Texas Instruments. This series is optimized for applications demanding high accuracy with minimal external components. The IRGVR variant specifically denotes the industrial temperature range and VQFN packaging, distinguishing it from other pinouts or thermal grades within the same functional family.

Replacement Considerations

ADS1226IRGVT: Identical electrical specifications but in a Tape & Reel package instead of Cut Tape. ADS1226IPWR: Different package type (TSSOP) with potentially different pinout and thermal characteristics; verify mechanical fit.