ADS1205IRGERG4

Overview

The ADS1205IRGERG4 is a dual-channel, high-performance delta-sigma modulator from Texas Instruments. It features 16-bit resolution with 14-bit linearity and supports a ±2.5V input range at a 2.5V internal reference voltage. The device operates with a gain error of 0.5% and includes two independent second-order delta-sigma modulators. It functions within a supply voltage range of 2.7V to 5.5V and is housed in a 24-VQFN package.

Feature Summary

• Integrates two independent second-order delta-sigma modulators for high-resolution signal processing
• Provides 16-bit resolution with specified 14-bit linearity performance
• Supports a ±2.5V input range utilizing an internal 2.5V reference voltage

Applications

• Industrial process control systems requiring precise analog-to-digital conversion
• Medical instrumentation devices needing high-resolution data acquisition
• High-accuracy sensor interfaces for measurement applications

Procurement Notes

Verify the specific suffix G4 indicates lead-free compliance and RoHS standards when sourcing. Confirm the VQFN-24 package dimensions match your PCB footprint requirements. Ensure the operating temperature range aligns with your system's environmental conditions. Cross-reference the datasheet revision to confirm interface compatibility with your digital logic levels.

Selection Notes

Select this component when dual-channel high-resolution modulation is required without external sigma-delta filtering. Consider the 2.7V to 5.5V supply range for flexible power design. Evaluate the serial data interface requirements against your microcontroller capabilities. Compare the 16-bit resolution against application noise floor requirements to ensure adequate dynamic range.

Part Context

This part belongs to Texas Instruments' delta-sigma modulator family, designed for precision data acquisition. It serves as a front-end converter for systems requiring high linearity and low noise. The device integrates modulators to simplify system architecture by reducing external component count compared to discrete solutions.

Replacement Considerations

The ADS1205IRGER is a compatible variant within the same product family. Verify pinout and electrical specifications before substitution. Check if the non-G4 suffix meets current environmental compliance requirements for your region.