INA190A1IDCKT

Overview

The INA190A1IDCKT is a bidirectional, low-power, zero-drift, wide dynamic range, precision current-sense amplifier with an enable function. It operates within a supply voltage range of 1.7 V to 5.5 V and supports a common-mode voltage from -200 mV to 40 V. The device features a fixed gain of 25 V/V, a maximum input offset voltage of 15 µV, and a typical input bias current of 3 nA. It offers a gain-bandwidth product of 45 kHz and a minimum common-mode rejection ratio of 132 dB. Operating temperatures range from -40°C to +125°C in a 6-pin SC-70 package.

Feature Summary

• Bidirectional measurement capability for accurate current sensing across positive and negative ranges.
• Zero-drift architecture ensures high precision by minimizing input offset voltage drift over temperature.
• Integrated enable pin allows for power management by reducing quiescent current when disabled.

Applications

• Battery management systems requiring precise current monitoring
• Industrial process control loops
• Power supply output current regulation

Procurement Notes

Verify the specific suffix IDCKT corresponds to the SC-70-6 tape-and-reel packaging configuration. Confirm that the A5 grade specifications align with your design requirements for offset voltage and gain accuracy. Check for end-of-life status or obsolescence notices from Texas Instruments before finalizing procurement plans.

Selection Notes

Select this component when bidirectional sensing is required alongside ultra-low drift performance. The 25 V/V gain suits applications where moderate amplification is needed without excessive output swing limitations. Ensure the system ground references allow for the specified -200 mV to 40 V common-mode voltage range.

Part Context

Part of the INA190 family of precision current-sense amplifiers designed for high-accuracy applications. The series emphasizes low power consumption and wide dynamic range, making it suitable for battery-powered and industrial environments where stability and precision are critical.

Replacement Considerations

INA190A1IDCKR: Same electrical characteristics but in a reel package instead of cut tape.

FAQ

What is the fixed voltage gain of the INA190A1IDCKT?

The fixed voltage gain is 25 V/V.

Does the INA190A1IDCKT support bidirectional current sensing?

Yes, it is a bidirectional current-sense amplifier capable of measuring current in both directions.