Product details

Product type Analog output Common-mode voltage (max) (V) 120 Common-mode voltage (min) (V) 2.7 Input offset (±) (max) (V) 0.00015 Input offset drift (±) (typ) (V/°C) 0.000001 Voltage gain (V/V) 20, 50, 100, 200, 500 CMRR (min) (dB) 120 Bandwidth (MHz) 1.1 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 Catalog Operating temperature range (°C) -40 to 125
Product type Analog output Common-mode voltage (max) (V) 120 Common-mode voltage (min) (V) 2.7 Input offset (±) (max) (V) 0.00015 Input offset drift (±) (typ) (V/°C) 0.000001 Voltage gain (V/V) 20, 50, 100, 200, 500 CMRR (min) (dB) 120 Bandwidth (MHz) 1.1 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 Catalog Operating temperature range (°C) -40 to 125
SOT-SC70 (DCK) 5 2.5 mm² 2 x 1.25
  • 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: 20 V/V
    • INA280A2: 50 V/V
    • INA280A3: 100 V/V
    • INA280A4: 200 V/V
    • INA280A5: 500 V/V
  • High bandwidth: 1.1 MHz
  • Slew rate: 2 V/µs
  • Quiescent current: 370 µA
  • 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: 20 V/V
    • INA280A2: 50 V/V
    • INA280A3: 100 V/V
    • INA280A4: 200 V/V
    • INA280A5: 500 V/V
  • High bandwidth: 1.1 MHz
  • Slew rate: 2 V/µs
  • Quiescent current: 370 µA

The INA280 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 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 operates from a single 2.7-V to 20-V supply and draws a 370-µA supply current (typical). The INA280 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 enables accurate current sensing over the extended operating temperature range of −40°C to +125°C.

The INA280 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 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 operates from a single 2.7-V to 20-V supply and draws a 370-µA supply current (typical). The INA280 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 enables accurate current sensing over the extended operating temperature range of −40°C to +125°C.

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Technical documentation

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Type Title Date
* Data sheet INA280 2.7-V to 120-V, 1.1-MHz, High Precision Current Sense Amplifier datasheet 15 Oct 2020
More literature Current Sensing in an H-Bridge (Rev. C) PDF | HTML 15 Aug 2022
More literature High-Side Switch Open-Load Detection in ON-State PDF | HTML 05 Jul 2022
More literature Safety and Protection for Discrete Digital Outputs in a PLC System Using Current (Rev. B) PDF | HTML 10 Mar 2022
More literature Using a PCB Copper Trace as a Current-Sense Shunt Resistor PDF | HTML 25 Jan 2022
Technical article Solving the multidecade current-measurement challenge in your 48-V BMS application 14 Jun 2021
More literature High-Side Motor Current Monitoring for Over-Current Protection (Rev. B) PDF | HTML 23 Feb 2021
Technical article How current-sense amplifiers monitor satellite health 08 Feb 2021
EVM User's guide INA280EVM User's Guide PDF | HTML 29 Oct 2020
Technical article A key to accurate system thermal management: monitoring both current flow and temperature 04 Oct 2018
Technical article System trade-offs for high- and low-side current measurements 01 Jun 2017

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