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See Technical Specifications

INA271AIDR +BOM

-16 to 80V, split-stage current sense amplifier w/ in-line filter capability

Manufacturer:

TI
Mfr.Part #:

INA271AIDR
Datasheet:

INA271AIDR Datasheet (PDF)
Common-mode Voltage (max) (V):

80
Common-mode Voltage (min) (V):

-16
Input Offset (±) (max) (µV):

2500
Input Offset Drift (±) (typ) (µV/°C):

2.5
EDA/CAD Models:

Request Free CAD Models for INA271AIDR

Description

The INA271AIDR is a high-side power monitor IC from Texas Instruments, designed for precise current measurement in industrial and automotive applications. It features a wide common-mode range of -16V to +80V, high common-mode rejection ratio (CMRR) of 120 dB, and low offset voltage with an accuracy of ±0.5-mV Offset and ±0.2% Gain Error. The IC has a bandwidth up to 130 kHz and two gain options available: 14 V/V (INA270) and 20 V/V (INA271). It also features a quiescent current of 700 µA and operates with a power supply voltage range of +2.7V to +18V. The INA271AIDR is suitable for precision current sensing applications, such as battery management systems, power management, motor control, and instrumentation, particularly in noisy environments where accurate measurements are crucial.

Features

According to the product information, the features of the INA271AIDR are:

Wide Common-Mode Range: –16 V to +80 V
CMRR: 120 dB
Accuracy:
+ ±0.5-mV Offset (typ)
+ ±0.2% Gain Error (typ)
+ 2.5 μV/°C Offset Drift (typ)
+ 50 ppm/°C Gain Drift (max)
Bandwidth: Up to 130 kHz
Two Gain Options Available:
+ 14 V/V (INA270)
+ 20 V/V (INA271)
Quiescent Current: 700 μA (typ)
Power Supply: +2.7 V to +18 V
Provision for Filtering

These features make the INA271AIDR suitable for precision current sensing applications, such as battery management systems, power management, motor control, and instrumentation.

Package

The package type of INA271AIDR is Small Outline Packages - 8-Pin SOIC-ren5.

Manufacturer

The manufacturer of the INA271AIDR is Texas Instruments (TI).

Applications

According to the product information, the application areas of INA271AIDR include:

Precision current sensing applications
Battery management systems
Power management
Motor control
Instrumentation

It is also suitable for applications requiring accurate current sensing in noisy environments due to its high common-mode rejection ratio and low offset voltage.

Equivalent

Based on Texas Instruments' product information, the equivalent products of INA271AIDR are:

INA270 (14 V/V gain option)
Other high-side power monitor ICs from Texas Instruments with similar specifications and features.

Please note that this is not an exhaustive list, as there might be other equivalent products available in the market.

Specifications

Product type	Analog output	Common-mode voltage (max) (V)	80
Common-mode voltage (min) (V)	-16	Input offset (±) (max) (µV)	2500
Input offset drift (±) (typ) (µV/°C)	2.5	Voltage gain (V/V)	20
CMRR (min) (dB)	100	Bandwidth (kHz)	130
Supply voltage (max) (V)	18	Supply voltage (min) (V)	2.7
Iq (max) (mA)	0.95	Number of channels	1
Comparators (#)	0	Gain error (%)	1
Gain error drift (±) (max) (ppm/°C)	50	Slew rate (V/µs)	1
Features	Low-side Capable	Rating	Catalog
Operating temperature range (°C)	-40 to 125	Product Category	Current & Power Monitors & Regulators
Product	Current Monitors	Sensing Method	High Side
Supply Voltage - Max	18 V	Supply Voltage - Min	2.7 V
Operating Supply Current	950 uA	Accuracy	1 %
Minimum Operating Temperature	- 40 C	Maximum Operating Temperature	+ 125 C
Mounting Style	SMD/SMT	Bandwidth	130 kHz
Ib - Input Bias Current	+/- 16 uA	Input Voltage Range	2.7 V to 18 V
Moisture Sensitive	Yes	Operating Supply Voltage	2.7 V to 18 V
Product Type	Current & Power Monitors & Regulators	Series	INA271
Factory Pack Quantity	2500	Subcategory	PMIC - Power Management ICs
Vos - Input Offset Voltage	2.5 mV	Unit Weight	0.002677 oz
Package/Case	SOIC (D)-8