INA293A1IDBVR

Overview

The INA293A1IDBVR is a unidirectional current sense amplifier from Texas Instruments, designed for high-precision applications. It operates with a common-mode voltage range of -4 V to 110 V and features a bandwidth of 1.3 MHz. The device offers a fixed gain of 20 V/V and an ultra-low input offset voltage of 5 µV. It functions within a supply voltage range of 2.7 V to 20 V and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Supports high common-mode voltages up to 110 V for flexible system integration
• Provides ultra-precise measurement capabilities with minimal input offset voltage
• Delivers high bandwidth performance suitable for fast transient detection

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 configuration. Confirm that the A1 grade meets the required offset voltage specifications for your application. Ensure compatibility with the -4 V to 110 V common-mode range before finalizing procurement.

Selection Notes

Select this component when high-side current sensing is required in environments with large common-mode voltages. The 20 V/V gain is optimal for interfacing with standard ADCs while maintaining high accuracy. Consider the 1.3 MHz bandwidth if rapid response to load changes is critical for system stability.

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 INA293B1 but differs in fixed gain and precision grade. The family is characterized by zero-drift technology and high common-mode rejection ratios.

Replacement Considerations

INA293A1IDBVT serves as a direct pin-compatible alternative with a different packaging option.