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Analog current-sense amplifiers

INA214

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

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Data sheet

INA214

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) 60 Input offset drift (±) (typ) (µV/°C) 0.1 Features Bidirectional, High precision, Low-side Capable Rating Catalog Voltage gain (V/V) 100 CMRR (min) (dB) 105 Bandwidth (kHz) 30 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 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) 60 Input offset drift (±) (typ) (µV/°C) 0.1 Features Bidirectional, High precision, Low-side Capable Rating Catalog Voltage gain (V/V) 100 CMRR (min) (dB) 105 Bandwidth (kHz) 30 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 Operating temperature range (°C) -40 to 125
SOT-SC70 (DCK) 6 4.2 mm² 2 x 2.1 UQFN (RSW) 10 2.52 mm² 1.8 x 1.4

  • Updated format to match new TI layout and flow. Tables, figures and cross-references use a new numbering sequence throughout the document.

    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

  • Updated format to match new TI layout and flow. Tables, figures and cross-references use a new numbering sequence throughout the document.

    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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Technical documentation

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* Data sheet INA21x Voltage Output, Low- or High-Side Measurement, Bidirectional,Zero-Drift Series, Current-Shunt Monitors datasheet (Rev. K) PDF | HTML 14 Nov 2023
Application note Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers PDF | HTML 18 Nov 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
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 note Closed-Loop Analysis of Load-Induced Amplifier Stability Issues Using Zout 27 Oct 2017
Application brief Low-Side Current Sense Circuit Integration 30 Mar 2017
More literature Over-Current Detection Products Brochure 14 Aug 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
Evaluation board

LMK03318EVM — LMK03318EVM Ultra-Low-Jitter Clock Generator EVM With 1 PLL, 8 Differential Outputs, and 2 Inputs

The LMK03318EVM evaluation module provides a complete clocking platform to evaluate the 100-fs RMS jitter performance and pin-/software-configuration modes and features of the Texas Instruments LMK03318 Ultra-Low-Jitter Clock Generator with 1 PLL, 8 outputs, 2 inputs, and integrated EEPROM.

The (...)

User guide: PDF
Not available on TI.com
Evaluation board

LMK03328EVM — LMK03328EVM Ultra-Low-Jitter Clock Generator EVM With 2 PLLs, 8 Differential Outputs, and 2 Inputs

The LMK03328EVM evaluation module provides a complete clocking platform to evaluate the 100-fs RMS jitter performance and pin-/software-configuration modes and features of the Texas Instruments LMK03328 Ultra-Low-Jitter Clock Generator with Dual PLLs, 8 outputs, 2 inputs, and integrated EEPROM.

The (...)

User guide: PDF
Not available on TI.com
Evaluation board

LMK05028EVM — LMK05028 Network Clock Generator and Synchronizer Evaluation Module

The LMK05028EVM is an evaluation module for the LMK05028 Network Clock Generator and Synchronizer. The EVM can be used for device evaluation, compliance testing, and system prototyping.
The LMK05028 integrates two Digital PLLs (DPLLs) with programmable bandwidth for input wander and jitter (...)

User guide: PDF
Not available on TI.com
Evaluation board

LP-MSP430FR2476 — MSP430FR2476 LaunchPad™ development kit

The LP-MSP430FR2476 LaunchPad™ development kit is an easy-to-use evaluation module (EVM) based on the MSP430FR2476 value line sensing microcontroller (MCU). It contains everything needed to start developing on the ultra-low-power MSP430FR2x value line sensing MCU platform, including on-board (...)

User guide: PDF | HTML
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Development kit

MSP-EXP430G2ET — MSP430™ LaunchPad™ development kit for value line MCU

The MSP430G2553 LaunchPad™ development Kit is cost-effective and easy-to-use evaluation module (EVM) for the MSP430G2xx entry-level series of microcontrollers (MCUs). It contains what is needed to start developing on the ultra-low-power MSP430™ microcontroller platform, including an on-board debug (...)
User guide: PDF
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Simulation model

INA214 PSpice Model (Rev. A)

SBOM328A.ZIP (41 KB) - PSpice Model
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Simulation model

INA214 TINA-TI Reference Design (Rev. A)

SBOM329A.TSC (105 KB) - TINA-TI Reference Design
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Simulation model

INA214 TINA-TI Spice Model (Rev. A)

SBOM330A.ZIP (7 KB) - TINA-TI Spice Model
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Calculation tool

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

Supported products & hardware

Supported products & hardware
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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 (...)
Supported products & hardware

Supported products & hardware
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Design tool

CIRCUIT060033 — Low-drift, low-side, bidirectional current sensing circuit with integrated precision gain

The low-side bidirectional current-shunt monitor solution illustrated in the following image can accurately measure currents from –4 A to 4 A, and the design parameters can easily be changed for different current measurement ranges. Current-shunt monitors from the INA21x family have (...)
User guide: PDF
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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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Gerber file

INA214C Cookbook Tina Model

SBOC518.ZIP (35 KB)
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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 CAD symbols, footprints & 3D models
SOT-SC70 (DCK) 6 Ultra Librarian
UQFN (RSW) 10 Ultra Librarian
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