INA281A5QDBVRQ1 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock

Name: INA281A5QDBVRQ1
Brand: Texas Instruments
SKU: INA281A5QDBVRQ1
Availability: InStock

The INA281A5QDBVRQ1 is a Texas Instruments AEC-Q100 qualified current sense amplifier with a -4V to 110V common-mode input range, 1.3MHz bandwidth, and 120dB minimum CMRR, packaged in a 5-pin SOT-23 for automotive current monitoring. Rated for -40°C to 125°C operation. Available from stock with worldwide shipping.

ACTIVEIntegrated CircuitVerified Jul 2026

Package / Visual Reference

INA281A5QDBVRQ1SOT23 (5-Pin)

Quick Facts

Manufacturer: Texas Instruments
Package: SOT23 (5-Pin)
Pin Count: 5
Lifecycle: ACTIVE
Datasheet: INA281A5QDBVRQ1 Datasheet PDF
Category: Integrated Circuit
Price: From $1.4300(MOQ 1)
Temp Range: -40.0°C to 125.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of INA281A5QDBVRQ1?

-4V to 110V common-mode voltage range
1.3 MHz bandwidth current sense amplifier
120 dB minimum common-mode rejection ratio (140 dB typical)
30 µA maximum input bias current
AEC-Q100 qualified for automotive applications
5-pin SOT-23 package, -40°C to 125°C operating range

What is INA281A5QDBVRQ1 used for?

The INA281A5QDBVRQ1 is designed for automotive and industrial current monitoring applications such as battery management systems, motor control, and DC power distribution where high common-mode voltages are present. Its wide -4V to 110V input range and AEC-Q100 qualification make it well suited for under-hood and high-voltage EV/HEV power electronics. The 1.3MHz bandwidth also supports fast overcurrent protection loops in industrial drives.

What are the specifications of INA281A5QDBVRQ1?

Pbfree Code	Yes
Date Of Intro	2020-11-08
YTEOL	15
Amplifier Type	OPERATIONAL AMPLIFIER
Architecture	VOLTAGE-FEEDBACK
Average Bias Current-Max (IIB)	30 µA
Bias Current-Max (IIB) @25C	30 µA
Common Mode Voltage-Max	110V
Common-mode Reject Ratio-Min	120dB
Common-mode Reject Ratio-Nom	140dB
Frequency Compensation	NO
Input Offset Voltage-Max	150 µV
JESD-30 Code	R-PDSO-G5
JESD-609 Code	e4
Low-Bias	NO
Low-Offset	YES
Micropower	NO
Number of Functions	1
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	TSOP5,.11,37
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Packing Method	TR
Peak Reflow Temperature (Cel)	260
Power	NO
Programmable Power	NO
Screening Level	AEC-Q100
Slew Rate-Nom	2.5V/us
Supply Current-Max	2.25mA
Supply Voltage Limit-Max	22V
Supply Voltage-Nom (Vsup)	5V
Surface Mount	YES
Temperature Grade	AUTOMOTIVE
Terminal Finish	Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form	GULL WING
Terminal Pitch	0.95mm
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	30
Unity Gain BW-Nom	900
Voltage Gain-Nom	500
Wideband	NO
Package	SOT23 (5-Pin)

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	EAR99
HTS Code	8542.33.00.01
Country of Origin	Mainland China, Philippines, Taiwan, Thailand

Where can I find the INA281A5QDBVRQ1 datasheet?

INA281A5QDBVRQ1 Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for INA281A5QDBVRQ1?

Compatible alternatives and drop-in replacements for INA281A5QDBVRQ1:

INA281A5IDBVTTexas Instruments Operational

Amplifier, 1 Func, 150uV Offset-Max, BICMOS, PDSO5

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

How wide is the common-mode input range this current sense amplifier can tolerate?

The INA281A5QDBVRQ1 supports a common-mode voltage range from -4V to 110V, allowing it to accurately measure current on high-voltage automotive and industrial buses without additional level-shifting circuitry.

What temperature range and qualification level does this amplifier meet for automotive use?

This device is AEC-Q100 qualified and rated for operation from -40°C to 125°C, making it appropriate for under-hood and battery-management applications that demand automotive-grade reliability.

Why does this current sense amplifier achieve high accuracy on high-voltage automotive buses?

With a 1.3 MHz bandwidth and a minimum common-mode rejection ratio of 120 dB, the INA281A5QDBVRQ1 can accurately track fast current transients while rejecting noise on high-voltage common-mode signals.

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About Texas Instruments

Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.

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AvailabilityIn Stock

Reference Price (USD)

From $1.4300

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$2.8200	$2.82
10+	$2.2500	$22.50
25+	$2.1500	$53.75
500+	$1.5400	$770.00
1000+	$1.5000	$1500.00
3000+	$1.4300	$4290.00

pcs

Unit price: $2.8200 · Total: $2.82

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”

Marco Rossi

CTO, AutoDrive Systems, Italy

INA281A5QDBVRQ1 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock

What are the key features of INA281A5QDBVRQ1?

What is INA281A5QDBVRQ1 used for?

What are the specifications of INA281A5QDBVRQ1?

Compliance & Regulatory

Where can I find the INA281A5QDBVRQ1 datasheet?

What are equivalent replacements for INA281A5QDBVRQ1?

Frequently Asked Questions

How wide is the common-mode input range this current sense amplifier can tolerate?

What temperature range and qualification level does this amplifier meet for automotive use?

Why does this current sense amplifier achieve high accuracy on high-voltage automotive buses?

Related Guides

STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply

STM32H725IGT3 High-Performance MCU Design Guide

150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing

STEF05SGR 5 V eFuse Protection Design Guide

Why Buy from FindMyChip

About Texas Instruments

More from Texas Instruments

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