Product details


Common mode voltage (Max) (V) 120 Common mode voltage (Min) (V) 2.7 Input offset (+/-) (Max) (uV) 150 Input offset drift (+/-) (Typ) (uV/C) 1 Gain (V/V) 100, 20, 200, 50, 500 Gain error (%) 0.5 Gain error drift (+/-) (Max) (ppm/°C) 20 CMRR (Min) (dB) 120 Bandwidth (kHz) 1100 Supply voltage (Max) (V) 20 Supply voltage (Min) (V) 2.7 Iq (Max) (mA) 0.6 Number of channels (#) 1 Comparators (#) 0 Features High precision Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (C) -40 to 125 open-in-new Find other Current sense amplifiers analog output

Package | Pins | Size

SOT-SC70 (DCK) 5 4 mm² 2 x 2.1 open-in-new Find other Current sense amplifiers analog output


  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40 °C to +125 °C, TA
  • Functional Safety-Capable
  • Wide common-mode voltage:
    • Operational voltage: 2.7 V to 120 V
    • Survival voltage: −20 V to +122 V
  • Excellent CMRR:
    • 120-dB DC (minimum)
    • 85-dB AC at 50 kHz
  • Accuracy
    • Gain:
      • Gain error: ±0.5% (maximum)
      • Gain drift: ±20 ppm/°C (maximum)
    • Offset:
      • Offset voltage: ±150 µV (maximum)
      • Offset drift: ±1 µV/°C (maximum)
  • Available gains:
    • INA280A1-Q1: 20 V/V
    • INA280A2-Q1: 50 V/V
    • INA280A3-Q1: 100 V/V
    • INA280A4-Q1: 200 V/V
    • INA280A5-Q1: 500 V/V
  • High bandwidth: 1.1 MHz
  • Slew rate: 2 V/µs
  • Quiescent current: 370 µA
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The INA280-Q1 is a current sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode range from 2.7 V to 120 V. It is in a highly space-efficient SC-70 package with a PCB footprint of only 2.0 mm × 2.1 mm. The current measurement accuracy is achieved thanks to the combination of an ultra-low offset voltage of ±150 µV (maximum), a small gain error of ±0.5% (maximum), and a high DC CMRR of 140 dB (typical). The INA280-Q1 is not only designed for DC current measurement, but also for high-speed applications (like fast overcurrent protection, for example) with a high bandwidth of 1.1 MHz (at gain of 20 V/V) and an 85-dB AC CMRR (at 50 kHz).

The INA280-Q1 operates from a single 2.7-V to 20-V supply and draws a 370-µA supply current (typical). The INA280-Q1 available with five gain options: 20 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V. The low offset and drift of the INA280-Q1 enables accurate current sensing over the extended operating temperature range of −40 °C to +125 °C.

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NEW INA290-Q1 ACTIVE AEC-Q100, 2.7-V to 120-V, 1.1-MHz, ultra-precise current sense amplifier in small (SC-70) package Functionally identical with increased accuracy

Technical documentation

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Type Title Date
* Data sheet INA280-Q1AEC-Q100, 2.7-V to 120-V, 1.1-MHz, High Precision Current Sense Amplifier in Small (SC-70) Package datasheet Nov. 20, 2020
Technical article Solving the multidecade current-measurement challenge in your 48-V BMS application Jun. 14, 2021
Application note High-Side Motor Current Monitoring for Over-Current Protection (Rev. B) Feb. 23, 2021
Technical article How current-sense amplifiers monitor satellite health Feb. 08, 2021
Application note Current Sensing in an H-Bridge (Rev. B) Feb. 05, 2021
Application note INA2x0-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA Nov. 17, 2020
Technical article A key to accurate system thermal management: monitoring both current flow and temperature Oct. 04, 2018
Technical article System trade-offs for high- and low-side current measurements Jun. 01, 2017

Design & development

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

Hardware development

document-generic User guide

The INA280 evaluation module (EVM) is a small module with five completely independent boards that can be broken off by the designer. Five schematically identical boards are available for each of the five gain variations of the INA280 with inputs up to 120-V common-mode and 5-A (on-board shunt) input (...)

  • Easy to test INA280 with differential voltage or shunt resistor
  • Pads and sockets allow quick and easy implementation of SMD filtering
  • Breakable panels enable designers to experiment and test with all gain variants

Design tools & simulation

SBOMBM9.ZIP (7 KB) - PSpice Model
SBOMBN4.ZIP (75 KB) - TINA-TI Spice Model
SBOMBN5.ZIP (7 KB) - PSpice Model
SBOMBN6.ZIP (7 KB) - PSpice Model
SBOMBN7.ZIP (7 KB) - PSpice Model
SBOMBN8.ZIP (7 KB) - PSpice Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide

Reference designs

Current Shunt Monitor with Transient Robustness Reference Design
TIDA-00302 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 (...)

document-generic Schematic
Design files

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SC70 (DCK) 5 View options

Ordering & quality

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