INA271SHKJ

Current Regulation/Management Overview

The INA271SHKJ is a current-shunt monitor die from Texas Instruments, designed for unidirectional current measurement. It operates with a supply voltage range of +2.7V to +18V and supports a wide common-mode voltage range of -16V to +80V. The device features a fixed gain of 20 V/V, a gain-bandwidth product of 130 kHz, and a maximum input offset voltage of 2.5 mV. It draws a typical operating supply current of 950 µA and offers a common-mode rejection ratio of 100 dB. The component is specified for operation between -55°C and +210°C.

Current Regulation/Management Feature Summary

• Provides voltage output proportional to shunt voltage drop across a wide common-mode range
• Features high common-mode rejection ratio for accurate measurements in noisy environments
• Supports extended temperature operation suitable for harsh industrial conditions

Current Regulation/Management Applications

• High-temperature industrial process control systems
• Current monitoring in extreme environment applications
• Power management circuits requiring wide common-mode voltage tolerance

Current Regulation/Management Procurement Notes

Verify the specific suffix 'SHKJ' against official Texas Instruments documentation to confirm exact binning, testing criteria, or packaging format differences compared to standard variants. Ensure compatibility with custom substrate integration as this is a bare die component. Confirm availability through authorized distributors for bulk wafer-level procurement requirements.

Current Regulation/Management Selection Notes

Select this component when designing systems requiring current sensing under extreme temperatures up to 210°C. The wide common-mode voltage range allows placement at various points in high-voltage power rails. Consider the fixed 20 V/V gain for simplified signal conditioning without external resistors. Verify that the SMD/SMT installation style fits the target carrier board design constraints.

Current Regulation/Management Part Context

This part belongs to the INA27x family of voltage-output, unidirectional measurement current-shunt monitors. Unlike packaged versions, the SHKJ suffix indicates a die configuration intended for direct attachment to substrates or carriers. This form factor supports specialized packaging solutions for aerospace, defense, or high-reliability industrial applications where standard packages are unsuitable.

Current Regulation/Management Replacement Considerations

Direct pin-compatible replacements may not exist due to the die-only format. Evaluate other INA27x series variants (e.g., INA271A) if different accuracy grades are needed, ensuring the replacement also meets the -55°C to +210°C temperature specification.