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INA211-Q1

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AEC-Q100, 26V, bi-directional, high-precision current sense amplifier

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Data sheet

INA211-Q1

ACTIVE
Data sheet Order now

Product details

Product type Analog output Common-mode voltage (max) (V) 26 Common-mode voltage (min) (V) -0.3 Input offset (±) (max) (µV) 35 Input offset drift (±) (typ) (µV/°C) 0.1 Voltage gain (V/V) 500 CMRR (min) (dB) 105 Bandwidth (kHz) 7 Supply voltage (max) (V) 26 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.115 Number of channels 1 Comparators (#) 0 Gain error (%) 0.4, 0.9 Gain error drift (±) (max) (ppm/°C) 10 Slew rate (V/µs) 0.4 Features Bidirectional, High precision, Low-side Capable Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
Product type Analog output Common-mode voltage (max) (V) 26 Common-mode voltage (min) (V) -0.3 Input offset (±) (max) (µV) 35 Input offset drift (±) (typ) (µV/°C) 0.1 Voltage gain (V/V) 500 CMRR (min) (dB) 105 Bandwidth (kHz) 7 Supply voltage (max) (V) 26 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.115 Number of channels 1 Comparators (#) 0 Gain error (%) 0.4, 0.9 Gain error drift (±) (max) (ppm/°C) 10 Slew rate (V/µs) 0.4 Features Bidirectional, High precision, Low-side Capable Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
SOT-SC70 (DCK) 6 4.2 mm² 2 x 2.1
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, T A
  • Functional Safety-Capable
  • Wide common-mode range: –0.3 V to 26 V
  • Offset voltage: ±100 µV (maximum) (enables shunt drops of 10-mV full-scale)
  • Accuracy:
    • Gain error:
      • ±1% (max over temperature, versions A, B)
      • ±0.5% (version C)
    • Offset drift: 0.5-µV/°C (maximum)
    • Gain drift: 10-ppm/°C (maximum)
  • Choice of gain:
    • INA210-Q1: 200 V/V
    • INA211-Q1: 500 V/V
    • INA212-Q1: 1000 V/V
    • INA213-Q1: 50 V/V
    • INA214-Q1: 100 V/V
    • INA215-Q1: 75 V/V
  • Quiescent current: 100 µA (maximum)
  • Package: 6-pin SC70
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, T A
  • Functional Safety-Capable
  • Wide common-mode range: –0.3 V to 26 V
  • Offset voltage: ±100 µV (maximum) (enables shunt drops of 10-mV full-scale)
  • Accuracy:
    • Gain error:
      • ±1% (max over temperature, versions A, B)
      • ±0.5% (version C)
    • Offset drift: 0.5-µV/°C (maximum)
    • Gain drift: 10-ppm/°C (maximum)
  • Choice of gain:
    • INA210-Q1: 200 V/V
    • INA211-Q1: 500 V/V
    • INA212-Q1: 1000 V/V
    • INA213-Q1: 50 V/V
    • INA214-Q1: 100 V/V
    • INA215-Q1: 75 V/V
  • Quiescent current: 100 µA (maximum)
  • Package: 6-pin SC70

The INA21x-Q1 family of devices is a voltage-output, current-shunt monitor (also called a current-sense amplifier) that can sense drops across shunts at common-mode voltages from –0.3 V to 26 V, independent of the supply voltage. Five fixed gains are available: 50 V/V, 75 V/V, 100 V/V, 200 V/V, 500 V/V, and 1000 V/V. This family of devices is commonly used for overcurrent detection, voltage feedback control loops, or as a power monitor. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10-mV full-scale.

The devices operate from a single 2.7-V to 26-V power supply, drawing a maximum of 100 µA of supply current. The devices are specified over the operating temperature range of –40°C to +125°C and are offered in a 6-pin SC70 package.

The INA21x-Q1 family of devices is a voltage-output, current-shunt monitor (also called a current-sense amplifier) that can sense drops across shunts at common-mode voltages from –0.3 V to 26 V, independent of the supply voltage. Five fixed gains are available: 50 V/V, 75 V/V, 100 V/V, 200 V/V, 500 V/V, and 1000 V/V. This family of devices is commonly used for overcurrent detection, voltage feedback control loops, or as a power monitor. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10-mV full-scale.

The devices operate from a single 2.7-V to 26-V power supply, drawing a maximum of 100 µA of supply current. The devices are specified over the operating temperature range of –40°C to +125°C and are offered in a 6-pin SC70 package.
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Technical documentation

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Type Title Date
* Data sheet INA21x-Q1 Automotive-Grade, Voltage Output, Low-Side or High-Side Measurement, Bidirectional, Zero-Drift Series, Current-Shunt Monitors datasheet (Rev. K) PDF | HTML 14 Nov 2023
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 30 Apr 2024
Application brief Integrating the Current Sensing Resistor (Rev. D) PDF | HTML 07 Apr 2023
Application brief Precision Current Measurements on High-Voltage Power-Supply Rails (Rev. F) PDF | HTML 17 Oct 2022
Application note Using a PCB Copper Trace as a Current-Sense Shunt Resistor PDF | HTML 25 Jan 2022
Application brief Integrating the Current Sensing Signal Path (Rev. B) PDF | HTML 29 Sep 2021
Functional safety information INA21x-Q1 and INA199-Q1 Functional Safety FIT Rate,FMD and Pin FMA (Rev. A) PDF | HTML 29 Apr 2021
Circuit design Low-Drift, Low-Side, Bidirectional Current Sensing Circuit (Rev. A) PDF | HTML 02 Dec 2020
Application brief Precision, Low-Side Current Measurement (Rev. B) 06 Mar 2019
Application brief External current sense amps vs integrated onboard amplifiers for current sensing (Rev. B) 19 Feb 2019
Application brief Low-Side Current Sense Circuit Integration 30 Mar 2017

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