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    Parts    INA186A2QDBVRQ1
INA186A2QDBVRQ1

TIINA186A2QDBVRQ1

Texas Instruments
Current Sense Amplifier 1 Circuit Rail-to-Rail SOT-23-5
Active3,318 in stock
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Overview

The INA186A2QDBVRQ1 is an automotive-qualified, high-precision bidirectional current sense amplifier that operates with a wide common-mode range of -0.2V to 40V. This device is optimized for low-side and high-side current monitoring in space-constrained applications, featuring a low quiescent current of 48uA and a dedicated shutdown mode to conserve power in battery-operated systems.

Why Choose This Part

The amplifier offers exceptional accuracy with a maximum input offset voltage of 3 uV and a typical gain error of 1 percent. Its low supply current of 48uA and 10nA shutdown current make it ideal for always-on automotive sub-systems and portable electronics.

Applications

Automotive 12V Battery Monitoring
Precise tracking of charge and discharge currents in vehicle battery management systems.
Precision Current Steering
Monitoring bidirectional current flow in motor control and H-bridge configurations.
Power Distribution Units
Real-time current measurement for overcurrent protection and power profiling in industrial systems.
Low-Power IoT Sensing
Using the 500 pA input bias current to minimize errors when measuring microamp-level currents in battery-powered devices.

Key Specifications

Slew Rate 0.3V/us
Output Type Rail-to-Rail
Mounting Type Surface Mount
-3db Bandwidth 37 kHz
Amplifier Type Current Sense
Package / Case SC-74A, SOT-753
Current - Supply 48uA
Number of Circuits 1
Current - Input Bias 500 pA
Operating Temperature -40degC ~ 125degC (TA)
Voltage - Input Offset 3 uV
Supplier Device Package SOT-23-5
Voltage - Supply Span (Max) 5.5 V
Voltage - Supply Span (Min) 1.7 V

Getting Started

To evaluate this part, use the INA186EVM evaluation module which supports multiple package variants. Ensure the shunt resistor is placed close to the IN+ and IN- pins to minimize trace resistance errors, and refer to the TI TINA-TI or PSpice models for signal integrity simulation.

Also Consider

MAX4080 Analog Devices - Supports much higher common-mode voltages up to 76V for high-voltage industrial rails.