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INA2180A1IDGKR

TIINA2180A1IDGKR

Texas Instruments
Current Sense Amplifier 2 Circuit Rail-to-Rail 8-VSSOP
NRND2,222 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The INA2180A1IDGKR is a dual-channel, high-side or low-side current sense amplifier featuring a fixed gain of 20V/V. It is designed to sense voltage drops across shunts at common-mode voltages from -0.2V to +26V, independent of the supply voltage. With a 350 kHz bandwidth and dual-circuit integration, it provides a compact solution for monitoring multiple power rails or motor phases.

Why Choose This Part

The integration of two circuits into a single 8-VSSOP package reduces PCB footprint and improves channel-to-channel matching. It offers high precision with a 1 percent accuracy rating and operates over a wide temperature range of -40 to 125 degrees Celsius, making it suitable for harsh industrial environments.

Applications

Multi-Phase Motor Control
Utilize the dual integrated circuits to monitor current in two different phases of a BLDC motor for precise torque and speed control.
Battery Management Systems
Measure charge and discharge currents in multi-cell battery packs to provide data for fuel gauging and protection circuits.
Overcurrent Protection
Implement high-speed fault detection in power distribution units using the 2V/us slew rate for rapid response to short circuits.
Solar Inverter Monitoring
Monitor current flow from photovoltaic panels into the inverter stage to optimize energy conversion efficiency.

Key Specifications

Slew Rate 2V/us
Output Type Rail-to-Rail
Mounting Type Surface Mount
-3db Bandwidth 350 kHz
Amplifier Type Current Sense
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Current - Supply 355uA
Number of Circuits 2
Current - Input Bias 80 uA
Operating Temperature -40degC ~ 125degC (TA)
Voltage - Input Offset 100 uV
Supplier Device Package 8-VSSOP
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 stays within the -0.2V to 26V range. For prototyping, the INA2180EVM evaluation module provides a pre-populated board with test points for both channels and footprint for shunt resistors.

Also Consider

INA180A1IDBVR TITexas Instruments - A single-channel version in a smaller SOT-23 package for designs that only require monitoring a single power rail.