INA296A3QDGSRQ1

Overview

The INA296A3QDGSRQ1 is a bidirectional, ultra-precise current-sense amplifier from Texas Instruments. It features a gain of 50 V/V and operates with a common-mode voltage range of -5 V to 110 V. The device offers a gain bandwidth product of 1.1 MHz, a maximum input offset voltage of 3 µV, and a typical CMRR of 150 dB. It draws 2.5 mA of supply current and functions within a temperature range of -40°C to +125°C. Packaged in an 8-pin VSSOP, it meets AEC-Q100 automotive standards.

Feature Summary

• Supports bidirectional current sensing across a wide common-mode voltage range from -5 V to 110 V
• Delivers high precision with low input offset voltage and minimal gain error for accurate measurements
• Provides fast transient response with a 1.1 MHz signal bandwidth and rapid settling time

Applications

• Automotive battery management systems requiring precise current monitoring
• High-side current sensing in industrial motor control applications
• Overcurrent protection circuits in power distribution units

Procurement Notes

Verify the specific suffix QDGSRQ1 matches the required package (VSSOP-8) and tape-and-reel quantity. Confirm AEC-Q100 qualification status aligns with project automotive requirements. Check for moisture sensitivity level compliance during storage and handling. Ensure the operating temperature range covers the intended environmental conditions. Validate pinout compatibility with existing PCB footprints before finalizing procurement.

Selection Notes

Select this component when high accuracy and wide common-mode voltage are critical. The 50 V/V gain suits applications needing moderate amplification without excessive output swing. Consider the VSSOP-8 package for space-constrained designs. Compare against other gains if output dynamic range differs significantly. Verify that the 1.1 MHz bandwidth meets the system's transient detection needs.

Part Context

This part belongs to the INA296x-Q1 family of ultra-precise current-sense amplifiers designed for automotive use. It shares core architecture with other variants differing primarily in fixed gain settings. The series supports both positive and negative current flow measurement. It complements other TI automotive analog components for comprehensive power management solutions.

Replacement Considerations

Direct substitutes include INA296A4QDGSRQ1 (100 V/V gain) or INA296A2QDGSRQ1 (20 V/V gain). Non-automotive equivalents like INA296A3DR may lack AEC-Q100 certification. Verify gain accuracy and package dimensions match before substitution.