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INA180A3QDBVRQ1

TIINA180A3QDBVRQ1

Texas Instruments
Current Sense Amplifier 1 Circuit Rail-to-Rail SOT-23-5
Active21,993 in stock

Overview

The INA180A3QDBVRQ1 is an automotive-qualified, high-side or low-side current sense amplifier featuring a fixed gain of 100V/V. Designed for space-constrained applications, it integrates a matched resistor gain network into a small SOT-23 package to minimize common-mode rejection errors. This AEC-Q100 qualified device operates across a common-mode range of -0.2V to +26V, making it suitable for 12V battery systems.

Why Choose This Part

The device offers AEC-Q100 Grade 1 qualification and functional safety capability for high-reliability automotive environments. Its 150 kHz bandwidth and 2V/us slew rate provide fast response times for overcurrent detection, while the low 260uA maximum supply current suits power-sensitive designs.

Applications

Automotive Battery Monitoring
Precise monitoring of charge and discharge currents in 12V automotive lead-acid or Li-ion battery systems.
Motor Control Feedback
Phase current sensing or DC link monitoring in small BLDC and brushed DC motor drives.
Overcurrent Protection
Fast detection of fault conditions in power distribution units and body control modules.
Solenoid Current Monitoring
Real-time current measurement for proportional valve and solenoid control in industrial and automotive systems.

Key Specifications

Slew Rate 2V/us
Output Type Rail-to-Rail
Mounting Type Surface Mount
Amplifier Type Current Sense
Package / Case SC-74A, SOT-753
Current - Supply 197uA
Number of Circuits 1
Current - Input Bias 80 uA
Operating Temperature -40degC ~ 125degC (TA)
Gain Bandwidth Product 150 kHz
Voltage - Input Offset 100 uV
Supplier Device Package SOT-23-5
Voltage - Supply Span (Max) 5.5 V
Voltage - Supply Span (Min) 2.7 V

Getting Started

To evaluate this part, use a shunt resistor sized for your maximum expected current and ensure the common-mode voltage remains within the -0.2V to 26V range. Connect the OUT pin directly to a microcontroller ADC, and place a decoupling capacitor close to the VDD pin (2.7V to 5.5V). For prototyping, the INA180EVM evaluation module is available to test different gain variants and shunt configurations.

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