Home Amplifiers Current-sense amplifiers Analog current-sense amplifiers
Home
Amplifiers
Current-sense amplifiers
Analog current-sense amplifiers

INA271

ACTIVE

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

Order now
Data sheet

A newer version of this product is available

open-in-new Compare alternates
Same functionality with different pin-out to the compared device.
INA281 ACTIVE -4-V to 110-V, 1.3-MHz, high-precision current sense amplifier INA281 has higher performance and supports a higher common mode voltage range (up to 110 V).

INA271

ACTIVE
Data sheet Order now

Product details

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 Features Low-side Capable Rating Catalog Voltage gain (V/V) 20 CMRR (min) (dB) 100 Bandwidth (kHz) 130 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 Operating temperature range (°C) -40 to 125
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 Features Low-side Capable Rating Catalog Voltage gain (V/V) 20 CMRR (min) (dB) 100 Bandwidth (kHz) 130 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 Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • 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
  • 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

The INA270 and INA271 family of voltage-output, current-sense amplifiers can sense drops across shunt resistors at common-mode voltages from –16 V to +80 V, independent of the supply voltage. The INA270 and INA271 pinouts readily enable filtering.

The INA270 and INA271 are available with two gain options: 14 V/V and 20 V/V. The 130-kHz bandwidth simplifies use in current-control loops.

The INA270 and INA271 operate from a single +2.7-V to +18-V supply, drawing 700 µA (typical) of supply current. The devices are specified over the extended operating temperature range of –40°C to +125°C and are offered in an SOIC-8 package.

The INA270 and INA271 family of voltage-output, current-sense amplifiers can sense drops across shunt resistors at common-mode voltages from –16 V to +80 V, independent of the supply voltage. The INA270 and INA271 pinouts readily enable filtering.

The INA270 and INA271 are available with two gain options: 14 V/V and 20 V/V. The 130-kHz bandwidth simplifies use in current-control loops.

The INA270 and INA271 operate from a single +2.7-V to +18-V supply, drawing 700 µA (typical) of supply current. The devices are specified over the extended operating temperature range of –40°C to +125°C and are offered in an SOIC-8 package.
filter Find other Analog current-sense amplifiers
Download View video with transcript Video

Technical documentation

No results found. Please clear your search and try again.
View all 2
Top documentation Type Title Format options Date
* Data sheet INA27x Voltage Output, Unidirectional Measurement Current-Shunt Monitor datasheet (Rev. E) PDF | HTML Jan 25, 2018
Application note Using a PCB Copper Trace as a Current Sense Shunt Resistor (Rev. A) PDF | HTML Apr 27, 2026

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation model

INA271 Generic Spice Model Listing (Rev. A)

SBOC286A.ZIP (37 KB) - Spice model
Supported products & hardware
Simulation model

INA271 PSpice Model

SBOMBC2.ZIP (57 KB) - PSpice model
Supported products & hardware
Simulation model

INA271 TINA-TI Reference Design (Rev. B)

SBOC285B.TSC (176 KB) - TINA-TI reference design
Supported products & hardware
Simulation model

INA271 TINA-TI Spice Model (Rev. A)

SBOM313A.ZIP (6 KB) - TINA-TI Spice model
Supported products & hardware
Calculation tool

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

Supported products & hardware
Calculation tool

CS-AMPLIFIER-ERROR-TOOL — Current Sense Amplifier Comparison and Error Tool

This Excel calculator provides a comparison between two and five of our standard current sense amplifiers, delivering a chart containing the basic parameters of each device. This calculator also takes system condition inputs from users such as common-mode voltage, supply voltage, shunt resistor (...)
Supported products & hardware
Reference design

TIDA-00120 — Solar MPPT Charge Controller Reference Design

This design is a 20A Maximum Power Point Tracking (MPPT) solar charge controller created for solar panel inputs corresponding to 12V and 24V panels. The design is targeted for small and medium power solar charger solutions and is capable of operating with 12V/24V panels and 12V/24V batteries up to (...)

Supported products & hardware
Reference design

TIDA-00302 — Current Shunt Monitor with Transient Robustness Reference Design

This high-side current shunt monitor is used to measure the voltage developed across a current-sensing resistor when current passes through it.

Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)

Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
SOIC (D) 8 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Video series

View all videos

Videos