INA296A4QDGSRQ1

Overview

The INA296A4QDGSRQ1 is a bidirectional current sense amplifier from Texas Instruments, designed for high-precision measurements in automotive and industrial applications. It operates with a common-mode voltage range of -5 V to 110 V, independent of supply voltage. The device features a fixed gain of 100 V/V, a gain bandwidth product of 1.1 MHz, and a typical CMRR of 150 dB. Key electrical parameters include an input bias current of 45 uA, input offset voltage of 3 uV, and a maximum gain error of 0.003%. It functions on a single supply voltage between 2.7 V and 20 V, consuming 2.5 mA of quiescent current. The component is housed in an SOIC-8 package and meets AEC-Q100 qualification standards.

Feature Summary

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

Applications

• Automotive battery management systems requiring precise current monitoring
• High-side or low-side current sensing in electric vehicle powertrains
• Industrial motor control and protection circuits

Procurement Notes

Verify the specific suffix QDGSRQ1 to confirm the SOIC-8 package, tape-and-reel packaging format, and AEC-Q100 automotive grade classification. Ensure compatibility with system requirements for common-mode voltage limits and gain accuracy before integration. Cross-reference official datasheets for thermal performance and ESD ratings relevant to the target application environment.

Selection Notes

Select this component when high accuracy and wide common-mode voltage are critical. The 100 V/V gain suits applications where small differential voltages must be amplified significantly. Consider the SOIC-8 package for space-constrained designs. Verify that the 1.1 MHz bandwidth meets the dynamic response needs of the circuit.

Part Context

This part belongs to the INA296x-Q1 family of ultra-precise, bidirectional current-sense amplifiers. The series offers multiple gain options (10, 20, 50, 100, 200 V/V) and variants (A, B grades) for different accuracy levels. The INA296A4 specifically denotes the 'A' grade version with 100 V/V gain, optimized for stringent precision requirements in harsh environments.

Replacement Considerations

Compatible substitutes within the same family include INA296A3QDGSRQ1 (50 V/V gain) and INA296A5QDGSRQ1 (200 V/V gain). For non-automotive use, the INA296A4IDR may serve as a functional equivalent if AEC-Q100 compliance is not required.