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INA214BIRSWR

TIINA214BIRSWR

Texas Instruments
Current Sense Amplifier 1 Circuit Single-Ended 10-UQFN (1.8x1.4)
Active1,698 in stock

Overview

The INA214BIRSWR is a high-accuracy, voltage-output, current-shunt monitor designed for low-side and high-side applications. It features a zero-drift architecture that enables current sensing with maximum offsets as low as 35 microvolts across a common-mode range of -0.3V to 26V. Operating on a low supply current of 65 uA, it is particularly well-suited for power-sensitive and battery-operated systems.

Why Choose This Part

The device offers a high gain of 100V/V with a very low input bias current of 28 uA, minimizing measurement errors in high-impedance paths. Its tiny 10-UQFN package (1.8x1.4mm) and low 65 uA current draw make it an excellent choice for dense PCB layouts and energy-constrained designs.

Applications

Notebook and Cell Phone Power Management
Monitoring battery discharge and charging cycles in portable electronics where space and power efficiency are critical.
Telecom Equipment
Providing precise current monitoring for line cards and infrastructure power distribution.
Battery Chargers
Implementing constant-current charging loops with high-side sensing up to 26V.
Precision Power Supplies
Monitoring output current in DC-DC converters to provide overcurrent protection and telemetry.

Key Specifications

Slew Rate 0.4V/us
Output Type Single-Ended
Mounting Type Surface Mount
Amplifier Type Current Sense
Package / Case 10-UFQFN
Current - Supply 65uA
Number of Circuits 1
Current - Input Bias 28 uA
Operating Temperature -40degC ~ 125degC
Gain Bandwidth Product 14 kHz
Voltage - Input Offset 1 uV
Supplier Device Package 10-UQFN (1.8x1.4)
Voltage - Supply Span (Max) 26 V
Voltage - Supply Span (Min) 2.7 V

Getting Started

To evaluate this part, use the INA214EVM evaluation module which provides a pre-populated PCB for testing different shunt resistor values. Ensure the shunt resistor is placed close to the IN+ and IN- pins to minimize trace resistance errors, and verify that the common-mode voltage remains within the -0.3V to 26V range.

Part of INA21x family » INA214B

INA214B Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Stock
INA214BIRSWR (this part) UFQFN-10 1,698
INA214BIDCKT TSSOP-6 10,349
INA214BIDCKR TSSOP-6 505

Also Consider

INA219AIDCNR TITexas Instruments - Consider this if you require a digital I2C interface instead of an analog voltage output.
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