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INA190A1IDCKR

TIINA190A1IDCKR

Texas Instruments
Current Sense Amplifier 1 Circuit Rail-to-Rail SC-70-6
NRND7,252 in stock
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Overview

The INA190A1IDCKR is a high-precision, voltage-output, current-shunt monitor designed for low-power applications. This bidirectional current sense amplifier features a gain of 25V/V and can monitor shunts across common-mode voltages from -0.2V to +40V, independent of the supply voltage.

Why Choose This Part

The device offers an extremely low input bias current that allows for the use of high-value shunt resistors without sacrificing accuracy. Its rail-to-rail output and wide common-mode range provide design flexibility for both high-side and low-side sensing in 1.8V to 5V systems.

Applications

Battery Management Systems
Monitoring charge and discharge cycles in portable electronics and power tools due to its ultra-low 500pA input bias current.
Industrial Instrumentation
Precise current monitoring in PLC analog input modules and motor control loops.
Energy Harvesting
Measuring small currents in self-powered systems where the 48uA quiescent current budget is critical.

Key Specifications

Slew Rate 0.3V/us
Output Type Rail-to-Rail
Mounting Type Surface Mount
Amplifier Type Current Sense
Package / Case 6-TSSOP, SC-88, SOT-363
Current - Supply 48uA
Number of Circuits 1
Current - Input Bias 500 pA
Operating Temperature -40degC ~ 125degC (TA)
Gain Bandwidth Product 45 kHz
Voltage - Input Offset 3 uV
Supplier Device Package SC-70-6
Voltage - Supply Span (Max) 5.5 V
Voltage - Supply Span (Min) 1.7 V

Getting Started

Integrate the SC-70 package into your PCB design using a Kelvin-connection layout for the shunt resistor to ensure maximum measurement accuracy. For evaluation, use the INA190EVM board which allows for rapid testing of various gain options and shunt configurations.

Categories

Sensors > Current & Voltage Sensors