INA293B2IDBVR

Overview

The INA293B2IDBVR is a unidirectional current sense amplifier from Texas Instruments, designed for high-voltage applications with a common-mode voltage range of -4 V to 110 V. It features a gain bandwidth product of 1.3 MHz and offers a fixed gain of 50 V/V. The device operates on a supply voltage between 2.7 V and 20 V, consuming 1.5 mA of quiescent current. It provides an ultra-precise performance with a maximum input offset voltage of 15 µV and a minimum common-mode rejection ratio of 160 dB. Packaged in a compact SOT-23-5 format, it supports operation across a temperature range of -40°C to +125°C.

Feature Summary

• Supports high common-mode voltages up to 110 V for flexible system integration
• Delivers ultra-precision accuracy with low input offset voltage and high CMRR
• Provides high bandwidth for fast transient response in dynamic load conditions

Applications

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

Procurement Notes

Verify the specific suffix IDBVR corresponds to the SOT-23-5 package and tape-and-reel delivery format. Confirm that the B2 variant matches the required 50 V/V gain specification for your circuit design. Ensure compatibility with the -4 V to 110 V common-mode range before finalizing procurement orders.

Selection Notes

Select this component when high-side current sensing is required in high-voltage environments. The 50 V/V gain is suitable for detecting small voltage drops across shunt resistors while maintaining signal integrity. Consider the 1.3 MHz bandwidth if rapid fault detection or high-frequency switching noise filtering is necessary for the application.

Part Context

This part belongs to the INA293 family of ultra-precise current sense amplifiers. It shares architectural similarities with other members like the INA293A4 and INA293B5 but differs in its specific gain setting and precision grade. The family is characterized by zero-drift technology and high common-mode rejection capabilities.

Replacement Considerations

The INA293A2IDBVR serves as a functional alternative within the same series, offering similar electrical characteristics and pinout compatibility.