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Current sense amplifiers analog output

INA210-Q1

ACTIVE

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

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Data sheet

INA210-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) (V) 0.000035 Input offset drift (±) (typ) (V/°C) 0.0000001 Voltage gain (V/V) 200 CMRR (min) (dB) 105 Bandwidth (MHz) 0.014 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
Product type Analog output Common-mode voltage (max) (V) 26 Common-mode voltage (min) (V) -0.3 Input offset (±) (max) (V) 0.000035 Input offset drift (±) (typ) (V/°C) 0.0000001 Voltage gain (V/V) 200 CMRR (min) (dB) 105 Bandwidth (MHz) 0.014 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 3 mm² 2 x 1.5
  • 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.
INA199-Q1 ACTIVE AEC-Q100, 26V, bi-directional current sense amplifier The INA199-Q1 is functionally identical with reduced accuracy at a lower price
INA211-Q1 ACTIVE AEC-Q100, 26V, bi-directional, high-precision current sense amplifier The device has identical performance but at a gain of 500
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) PDF | HTML 24 Apr 2020
More literature Precision Current Measurements on High-Voltage Power-Supply Rails (Rev. F) PDF | HTML 17 Oct 2022
More literature Using a PCB Copper Trace as a Current-Sense Shunt Resistor PDF | HTML 25 Jan 2022
More literature Integrating the Current Sensing Signal Path (Rev. B) PDF | HTML 29 Sep 2021
More literature Integrated, Current Sensing Analog-to-Digital Converter (Rev. A) PDF | HTML 28 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) PDF | HTML 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) PDF | HTML 02 Dec 2020
More literature Precision, Low-Side Current Measurement (Rev. B) 06 Mar 2019
More literature 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
More literature Low-Side Current Sense Circuit Integration 30 Mar 2017

Design & development

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

Evaluation board

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The INA210-215 devices are voltage output, high-side measurement, bi-directional, zero-drift current shunt monitors. The INA210-215EVM is intended to provide basic functional evaluation of this device family.  The fixture layout is not intended to be a model for the target circuit, nor is it (...)

User guide: PDF
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Simulation model

INA210 PSpice Model (Rev. A)

SBOM316A.ZIP (41 KB) - PSpice Model
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Simulation model

INA210 TINA-TI Reference Design (Rev. A)

SBOM317A.TSC (106 KB) - TINA-TI Reference Design
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Simulation model

INA210 TINA-TI Spice Model (Rev. A)

SBOM318A.ZIP (7 KB) - TINA-TI Spice Model
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Calculation tool

CS-AMPLIFIER-ERROR-TOOL — Current sense amplifier comparison and error tool

This Excel calculator provides a comparison between two and five of our standard current sense amplifiers, delivering a chart containing the basic parameters of each device. This calculator also takes system condition inputs from users such as common-mode voltage, supply voltage, shunt resistor (...)
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Design tool

CIRCUIT060035 — Bidirectional current sensing with a window comparator circuit

This bidirectional current sensing solution uses a current-sense amplifier and a high-speed dual comparator with a rail-to-rail input common mode range to create over-current (OC) alert signals at the comparator outputs (OUTA and OUTB) if the input current (IG1) rises above 100 A or falls below (...)
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Design tool

CIRCUIT060037 — Precision over-current latch circuit

This high-side, current sensing solution uses a current sense amplifier, a comparator with an integrated reference and a P-channel MOSFET to create an over-current latch circuit. When a load current greater than 200 mA is detected, the circuit disconnects the system from its power source. The (...)
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
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Simulation tool

TINA-TI — SPICE-based analog simulation program

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 (...)
User guide: PDF
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Reference designs

TIDA-00302 — Current Shunt Monitor with Transient Robustness Reference Design

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 (...)

Design guide: PDF
Schematic: PDF
Package Pins Download
SOT-SC70 (DCK) 6 View options

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