6 Detailed Description

6.1 Overview

The INA210-Q1 to INA215-Q1 are 26-V, common-mode, zero-drift topology, current-sensing amplifiers that can

be used in both low-side and high-side configurations. These specially-designed, current-sensing amplifiers are

able to accurately measure voltages developed across current-sensing resistors on common-mode voltages that

far exceed the supply voltage powering the device. Current can be measured on input voltage rails as high as

26 V and the device can be powered from supply voltages as low as 2.7 V.

The zero-drift topology enables high-precision measurements with maximum input offset voltages as low as

35 µV with a maximum temperature contribution of 0.5 µV/°C over the full temperature range of –40°C to 125°C.

6.2 Functional Block Diagram

REF

GND

V+

OUT

+

±

IN-

IN+

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INA210-Q1, INA211-Q1, INA212-Q1, INA213-Q1, INA214-Q1, INA215-Q1

SBOS475K – MARCH 2009 – REVISED NOVEMBER 2023

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Product Folder Links: INA210-Q1 INA211-Q1 INA212-Q1 INA213-Q1 INA214-Q1 INA215-Q1