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INA280-Q1
  • INA280-Q1
  • INA280-Q1

INA280-Q1

ACTIVE

AEC-Q100, 2.7-V to 120-V, 1.1-Mhz current sense amplifier in small (SC-70) package

Texas Instruments INA280-Q1 Product Info

1 April 2026 0

Parameters

Product type

Analog output

Common-mode voltage (max) (V)

120

Common-mode voltage (min) (V)

2.7

Input offset (±) (max) (µV)

150

Input offset drift (±) (typ) (µV/°C)

1

Features

High precision

Rating

Automotive

Voltage gain (V/V)

20, 50, 100, 200, 500

CMRR (min) (dB)

120

Bandwidth (kHz)

800, 850, 900, 1100

Supply voltage (max) (V)

20

Supply voltage (min) (V)

2.7

Iq (max) (mA)

0.6

Number of channels

1

Comparators (#)

0

Gain error (%)

0.5

Gain error drift (±) (max) (ppm/°C)

20

Slew rate (V/µs)

2

TI functional safety category

Functional Safety-Capable

Operating temperature range (°C)

-40 to 125

Package

SOT-SC70 (DCK)-5-4.2 mm² 2 x 2.1

Features

  • 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
  • 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

Description

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.

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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