INA293A1IDBVT

Overview

The INA293A1IDBVT 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 fixed gain of 50 V/V and a bandwidth of 1.3 MHz. Key electrical parameters include an input offset voltage of 25 µV, a gain error of 0.02%, and a supply current of 1.5 mA. The device operates on a single supply voltage between 2.7 V and 20 V, with an operating temperature range of -40°C to +125°C. It is housed in a compact SOT-23-5 package.

Feature Summary

• Supports high common-mode voltages up to 110 V for flexible system integration
• Provides ultra-precise measurement capabilities with low gain error
• Features high bandwidth for fast transient response in dynamic loads

Applications

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

Procurement Notes

Verify the specific suffix IDBVT indicates tape-and-reel packaging when ordering. Confirm the A1 variant corresponds to the 50 V/V gain setting required for your circuit design. Ensure compatibility with the -4 V to 110 V common-mode range of your application environment before finalizing procurement.

Selection Notes

Select this component when high-side current sensing is required in high-voltage environments. The 50 V/V gain is suitable for applications where the output voltage swing needs to be maximized relative to small shunt voltage drops. Consider the SOT-23-5 package constraints for thermal management and PCB space limitations compared to larger packages.

Part Context

This part belongs to the INA293 family of ultra-precise current sense amplifiers. It shares architectural similarities with other variants like the INA293A2 and INA293A4 but differs in fixed gain settings. The family is characterized by high common-mode rejection and wide bandwidth, making it suitable for demanding industrial and automotive applications requiring accurate current feedback.

Replacement Considerations

Direct replacements within the same family include INA293A2IDBVT (50 V/V gain) and INA293A4IDBVT (200 V/V gain). For different gain requirements, consider INA293A5IDBVT (500 V/V gain). Ensure pinout compatibility remains consistent across these SOT-23-5 variants.