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Product details

Parameters

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) 200 Gain error (%) 0.5, 1.0 Gain error drift (+/-) (Max) (ppm/°C) 10 CMRR (Min) (dB) 105 Bandwidth (kHz) 14 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, Low-side Capable Rating Catalog Operating temperature range (C) -40 to 125 open-in-new Find other Current sense amplifiers analog output

Package | Pins | Size

SOT-SC70 (DCK) 6 4 mm² 2 x 2.1 UQFN (RSW) 10 3 mm² 1.8 x 1.4 open-in-new Find other Current sense amplifiers analog output

Features

  • 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
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Description

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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INA199 ACTIVE 26V, bi-directional current sense amplifier The INA199 is functionally identical with reduced accuracy at a lower price

Technical documentation

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Type Title Date
* Datasheet INA21x Voltage Output, Low- or High-Side Measurement, Bidirectional, Zero-Drift Series, Current-Shunt Monitors datasheet (Rev. J) Feb. 02, 2017
Technical articles How current-sense amplifiers monitor satellite health Feb. 08, 2021
Application note Precision Current Measurements on High-Voltage Power-Supply Rails (Rev. D) Dec. 29, 2020
Application note Low-Drift, Low-Side, Bidirectional Current Sensing Circuit (Rev. A) Dec. 02, 2020
E-book Simplifying Current Sensing (Rev. A) Jan. 09, 2020
Technical articles Why current and magnetic sensing matters for wireless earbud design Nov. 10, 2019
Application note Precision, Low-Side Current Measurement (Rev. B) Mar. 06, 2019
Application note External current sense amps vs integrated onboard amplifiers for current sensing (Rev. B) Feb. 19, 2019
Technical articles A key to accurate system thermal management: monitoring both current flow and temperature Oct. 04, 2018
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Selection guide Current Sense Amplifiers (Rev. D) Apr. 04, 2018
Application note Closed-Loop Analysis of Load-Induced Amplifier Stability Issues Using Zout Oct. 27, 2017
Technical articles Precise constant current regulation helps advance fast-charging Jun. 15, 2017
Application note Low-Side Current Sense Circuit Integration Mar. 30, 2017
Application note Integrated, Current Sensing Analog-to-Digital Converter Dec. 21, 2016
Application note Integrating The Current Sensing Signal Path (Rev. A) Dec. 02, 2016
User guide INA210-215EVM User's Guide Hardware Version 2 Jul. 08, 2016
More literature Over-Current Detection Products Brochure Aug. 14, 2014
User guide INA210-215EVM User's Guide (Rev. A) Jun. 12, 2014

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
25
Description

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 (...)

Features
  • Evaluation of all gain options through provided device
  • Ease of access to device pins with test points
  • Space for optional input filtering capacitors and resistors
  • Multiple input signal options


Design tools & simulation

SIMULATION MODEL Download
SBOM316A.ZIP (41 KB) - PSpice Model
SIMULATION MODEL Download
SBOM317A.TSC (106 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SBOM318A.ZIP (7 KB) - TINA-TI Spice Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOL Download
SPICE-based analog simulation program
TINA-TI 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 (...)
document-generic User guide
CALCULATION TOOL Download
SBOR020A.ZIP (525 KB)

Reference designs

REFERENCE DESIGNS Download
High Availability High Speed Counter (HSC) and Pulse Train Output (PTO) Reference Design
TIDM-HAHSCPTO — This TI design provides a reference solution (firmware and test platform) for two different industrial IO functions related to motion control: High Speed Counter (HSC) and Pulse Train Output (PTO). The design is based on a microcontroller platform that is suitable for use in industrial applications (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
High Speed DLP Sub-system for Industrial 3D Printing and Digital Lithography Reference Design
TIDA-00570 The High Speed DLP® Sub-system Reference Design provides system-level DLP development board designs for industrial Digital Lithography and 3D Printing applications that require high resolution, superior speed and production reliability. The system design offers maximum throughput by integrating (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Reference Design for Telecom Applications (.9V @ .5A)
PMP4742 PMP4742.1 comprises a negative input (-10.8V to -13.2V) to positive output (12V@1A average) inverting buck-boost converter with TPS40210; a hot swap circuit with TPS2420 quickly limits the output current to 2A peak.
Design files
REFERENCE DESIGNS Download
Current Shunt Monitor with Transient Robustness Reference Design
TIDA-00302 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 (...)

document-generic Schematic document-generic User guide
Design files

CAD/CAE symbols

Package Pins Download
SC70 (DCK) 6 View options
UQFN (RSW) 10 View options

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

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