INA280A2IDCKT

Overview

The INA280A2IDCKT is a high-side current sense amplifier from Texas Instruments, housed in a space-efficient SC-70 (DCK) package. It features a fixed gain of 50 V/V and supports a wide common-mode voltage range from 2.7 V to 120 V. The device operates on a single supply voltage between 2.7 V and 20 V with a typical quiescent current of 370 µA. Key electrical specifications include a maximum offset voltage of ±150 µV, a minimum DC common-mode rejection ratio of 120 dB, and a bandwidth of 1.1 MHz at the specified gain.

Feature Summary

• Provides unidirectional current sensing with a fixed internal gain of 50 V/V for optimized output dynamic range.
• Supports high-side measurements over a wide common-mode input range extending up to 120 V.
• Delivers high-speed performance with a 1.1 MHz bandwidth and fast slew rate suitable for rapid overcurrent detection.

Applications

• Active antenna system mMIMO
• Macro remote radio unit power monitoring
• 48-V rack server current sensing

Procurement Notes

Verify the specific suffix IDCKT corresponds to the SC-70-5 tape-and-reel packaging configuration. Confirm that the A2 designation matches the required 50 V/V gain setting for your circuit design. Ensure the operating environment remains within the specified -40°C to +125°C temperature range for guaranteed accuracy.

Selection Notes

Select this component when a fixed 50 V/V amplification factor is required for high-side current monitoring. It is appropriate for applications needing a wide common-mode voltage range up to 120 V while maintaining low quiescent power consumption. Consider the SC-70 package size if board space is limited.

Part Context

This part belongs to the INA280 family of high-precision current sense amplifiers. The family offers multiple gain options ranging from 20 V/V to 500 V/V. The INA280A2 specifically provides the 50 V/V gain variant, distinguishing it from other members like the INA280A1 or INA280A3 which offer different amplification factors.

Replacement Considerations

Other devices within the INA280 family such as the INA280A1, INA280A3, INA280A4, or INA280A5 share the same pinout and package but feature different fixed gains. Verify that the alternative gain value meets the system's signal conditioning requirements before substitution.