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Current sense amplifiers analog output

INA211-Q1

ACTIVE

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

Common mode voltage (Max) (V) 26 Common mode voltage (Min) (V) -0.3 Input offset (+/-) (Max) (uV) 35 Input offset drift (+/-) (Typ) (uV/C) 0.1 Gain (V/V) 500 Gain error (%) 0.5, 1.0 Gain error drift (+/-) (Max) (ppm/°C) 10 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 Features Bi-directional, High precision, Low-side Capable Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (C) -40 to 125
Common mode voltage (Max) (V) 26 Common mode voltage (Min) (V) -0.3 Input offset (+/-) (Max) (uV) 35 Input offset drift (+/-) (Typ) (uV/C) 0.1 Gain (V/V) 500 Gain error (%) 0.5, 1.0 Gain error drift (+/-) (Max) (ppm/°C) 10 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 Features Bi-directional, 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 mm² 2 x 2.1
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • 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, TA
  • 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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Pin-for-pin with same functionality to the compared device.
INA210-Q1 ACTIVE AEC-Q100, 26V, bi-directional, high-precision current sense amplifier The device has identical performance but at a gain of 200
INA212-Q1 ACTIVE AEC-Q100, 26V, bi-directional, high-precision current sense amplifier The device has identical performance but at a gain of 1000
INA214-Q1 ACTIVE AEC-Q100, 26V, bi-directional, high-precision current sense amplifier The device has identical performance but at a gain of 100
INA215-Q1 ACTIVE AEC-Q100, 26V, bi-directional, high-precision current sense amplifier The device has identical performance but at a gain of 75

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. J) 24 Apr 2020
Application note Precision Current Measurements on High-Voltage Power-Supply Rails (Rev. E) 30 Mar 2022
Application note Integrating the Current Sensing Resistor (Rev. C) 09 Mar 2022
Application note Using a PCB Copper Trace as a Current-Sense Shunt Resistor 25 Jan 2022
Application note Integrating the Current Sensing Signal Path (Rev. B) 29 Sep 2021
Technical article Solving the multidecade current-measurement challenge in your 48-V BMS application 14 Jun 2021
Functional safety information INA21x-Q1 and INA199-Q1 Functional Safety FIT Rate,FMD and Pin FMA (Rev. A) 29 Apr 2021
Technical article How current-sense amplifiers monitor satellite health 08 Feb 2021
Circuit design Low-Drift, Low-Side, Bidirectional Current Sensing Circuit (Rev. A) 02 Dec 2020
Application note Precision, Low-Side Current Measurement (Rev. B) 06 Mar 2019
Application note External current sense amps vs integrated onboard amplifiers for current sensing (Rev. B) 19 Feb 2019
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
Application note Low-Side Current Sense Circuit Integration 30 Mar 2017

Design & development

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Calculation tool

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SC70 (DCK) 6 View options

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