INA293A4IDBVR

Overview

The INA293A4IDBVR is a unidirectional current sense amplifier from Texas Instruments, housed in a SOT-23-5 package. It supports a common-mode voltage range of -4 V to 110 V and operates on a supply voltage between 2.7 V and 20 V. The device features a fixed gain of 200 V/V, a gain bandwidth product of 900 kHz, and a 3dB bandwidth of 900 kHz. Key electrical specifications include a maximum input offset voltage of 5 uV, an input bias current of 20 uA, and a typical CMRR of 160 dB. It draws 1.5 mA of operating current and functions within a temperature range of -40 C to +125 C.

Feature Summary

• Provides ultra-precise current sensing with high accuracy for low-side and high-side applications.
• Supports wide common-mode voltage ranges up to 110 V for flexible system integration.
• Delivers high bandwidth performance suitable for fast transient response requirements.

Applications

• Industrial motor control systems
• Power supply monitoring circuits
• Battery management systems

Procurement Notes

Verify the specific suffix IDBVR corresponds to the SOT-23-5 reel or cut tape packaging format required for your assembly line. Confirm that the A4 variant matches the necessary 200 V/V gain specification for your circuit design. Ensure compatibility with your board space constraints given the small outline transistor package dimensions.

Selection Notes

Select this component when high precision and wide common-mode voltage are critical. The 200 V/V gain allows detection of small voltage drops across shunt resistors. Consider the 900 kHz bandwidth for dynamic load conditions. Verify thermal performance at maximum operating temperatures to ensure stability under continuous load.

Part Context

This part belongs to the INA293 family of ultra-precise current sense amplifiers designed for high-voltage applications. It complements other variants like the INA293A5IDBVR which offers different gain settings. The series is engineered for industrial environments requiring reliable current measurement over extended temperature ranges.

Replacement Considerations

Check for direct pin-compatible alternatives within the INA293 series such as INA293A2IDBVR or INA293A3IDBVR if gain adjustments are needed. Verify that any substitute maintains the same SOT-23-5 footprint and electrical characteristics for seamless integration.