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Current sense amplifiers analog output

INA212

ACTIVE

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

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Data sheet

INA212

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) 1000 CMRR (min) (dB) 105 Bandwidth (MHz) 0.004 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 Catalog 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) 1000 CMRR (min) (dB) 105 Bandwidth (MHz) 0.004 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 Catalog Operating temperature range (°C) -40 to 125
SOT-SC70 (DCK) 6 3 mm² 2 x 1.5 UQFN (RSW) 10 2.52 mm² 1.8 x 1.4
  • Wide Common-Mode Range: –0.3 V to 26 V
  • Offset Voltage: ±35 µV (Maximum, INA210)(Enables Shunt Drops of 10-mV Full-Scale)
  • Accuracy:
    • Gain Error (Maximum Over Temperature):
      • ±0.5% (Version C)
      • ±1% (Versions A and B)
    • 0.5-µV/°C Offset Drift (Maximum)
    • 10-ppm/°C Gain Drift (Maximum)
  • Choice of Gains:
    • INA210: 200 V/V
    • INA211: 500 V/V
    • INA212: 1000 V/V
    • INA213: 50 V/V
    • INA214: 100 V/V
    • INA215: 75 V/V
  • Quiescent Current: 100 µA (Maximum)
  • SC70 and Thin UQFN Packages: All Models
  • Wide Common-Mode Range: –0.3 V to 26 V
  • Offset Voltage: ±35 µV (Maximum, INA210)(Enables Shunt Drops of 10-mV Full-Scale)
  • Accuracy:
    • Gain Error (Maximum Over Temperature):
      • ±0.5% (Version C)
      • ±1% (Versions A and B)
    • 0.5-µV/°C Offset Drift (Maximum)
    • 10-ppm/°C Gain Drift (Maximum)
  • Choice of Gains:
    • INA210: 200 V/V
    • INA211: 500 V/V
    • INA212: 1000 V/V
    • INA213: 50 V/V
    • INA214: 100 V/V
    • INA215: 75 V/V
  • Quiescent Current: 100 µA (Maximum)
  • SC70 and Thin UQFN Packages: All Models

The INA21x are voltage-output, current-shunt monitors (also called current-sense amplifiers) that are commonly used for overcurrent protection, precision-current measurement for system optimization, or in closed-loop feedback circuits. This series of devices can sense drops across shunts at common-mode voltages from –0.3 V to 26 V, independent of the supply voltage. Six fixed gains are available: 50 V/V, 75 V/V, 100 V/V, 200 V/V, 500 V/V, or 1000 V/V. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10-mV full-scale.

These devices operate from a single 2.7-V to 26-V power supply, drawing a maximum of 100 µA of supply current. All versions are specified over the extended operating temperature range (–40°C to +125°C), and offered in SC70 and UQFN packages.

The INA21x are voltage-output, current-shunt monitors (also called current-sense amplifiers) that are commonly used for overcurrent protection, precision-current measurement for system optimization, or in closed-loop feedback circuits. This series of devices can sense drops across shunts at common-mode voltages from –0.3 V to 26 V, independent of the supply voltage. Six fixed gains are available: 50 V/V, 75 V/V, 100 V/V, 200 V/V, 500 V/V, or 1000 V/V. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10-mV full-scale.

These devices operate from a single 2.7-V to 26-V power supply, drawing a maximum of 100 µA of supply current. All versions are specified over the extended operating temperature range (–40°C to +125°C), and offered in SC70 and UQFN packages.
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INA211 ACTIVE 26V, bi-directional, high-precision current sense amplifier The device has identical performance but at a gain of 500
INA214 ACTIVE 26V, bi-directional, high-precision current sense amplifier The device has identical performance but at a gain of 100
INA215 ACTIVE 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 Voltage Output, Low- or High-Side Measurement, Bidirectional, Zero-Drift Series, Current-Shunt Monitors datasheet (Rev. J) PDF | HTML 02 Feb 2017
Application note Precision Current Measurements on High-Voltage Power-Supply Rails (Rev. F) PDF | HTML 17 Oct 2022
Application note Integrating the Current Sensing Resistor (Rev. C) PDF | HTML 09 Mar 2022
Application note Using a PCB Copper Trace as a Current-Sense Shunt Resistor PDF | HTML 25 Jan 2022
Application note Integrating the Current Sensing Signal Path (Rev. B) PDF | HTML 29 Sep 2021
Technical article Solving the multidecade current-measurement challenge in your 48-V BMS application 14 Jun 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
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
Application note Closed-Loop Analysis of Load-Induced Amplifier Stability Issues Using Zout 27 Oct 2017
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
EVM User's guide INA210-215EVM User's Guide Hardware Version 2 08 Jul 2016
More literature Over-Current Detection Products Brochure 14 Aug 2014
EVM User's guide INA210-215EVM User's Guide (Rev. A) 12 Jun 2014

Design & development

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

Evaluation board

INA210-215EVM — INA210-215 Voltage-Output Current-Shunt Monitor Evaluation Module

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
Not available on TI.com
Simulation model

INA212 PSpice Model (Rev. A)

SBOM322A.ZIP (42 KB) - PSpice Model
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Simulation model

INA212 TINA-TI Reference Design (Rev. A)

SBOM323A.TSC (103 KB) - TINA-TI Reference Design
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Simulation model

INA212 TINA-TI Spice Model (Rev. A)

SBOM324A.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-01451 — Power Switching Reference Design for Set Top Box

The TIDA-01451 reference design’s functionality emulates the power distribution of Set Top Boxes. By using integrated load switches to control power rails, each rail can be turned on or off depending on the needs and wants of the user. Turning off rails that are not being used reduces power (...)
Design guide: PDF
Schematic: PDF
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
UQFN (RSW) 10 View options

Ordering & quality

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  • Ongoing reliability monitoring

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