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Product details

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Package | Pins | Size

SOT-SC70 (DCK) 6 4 mm² 2 x 2.1 open-in-new Find other Current sense amplifiers analog output

Features

  • 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

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Description

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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Technical documentation

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Type Title Date
* Datasheet INA21x-Q1 Automotive-Grade, Voltage Output, Low-Side or High-Side Measurement, Bidirectional, Zero-Drift Series, Current-Shunt Monitors datasheet (Rev. J) Apr. 24, 2020
Application notes INA21x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA Mar. 23, 2020
Application notes Precision, Low-Side Current Measurement (Rev. B) Mar. 06, 2019
Application notes External current sense amps vs integrated onboard amplifiers for current sensing (Rev. B) Feb. 19, 2019
Application notes Precision current measurements on high-voltage power-supply rails (Rev. C) Feb. 19, 2019
Technical articles A key to accurate system thermal management: monitoring both current flow and temperature Oct. 04, 2018
Application notes Power-Saving Topologies for TI Current Shunt Monitors (Rev. A) Aug. 01, 2018
Application notes Integrating a Current Sense Resistor With a Current Sense Amplifier (Rev. B) Jul. 20, 2018
Application notes Low-drift, low-side, bidirectional current sensing circuit with integrated preci Jun. 28, 2018
Technical articles System trade-offs for high- and low-side current measurements Jun. 01, 2017
Application notes Low-Side Current Sense Circuit Integration Mar. 30, 2017
Application notes Integrating The Current Sensing Signal Path (Rev. A) Dec. 02, 2016
Technical articles Why should you care about overcurrent protection in your system? Jun. 16, 2016
Technical articles How to get started with current sense amplifiers – part 2 May 26, 2015

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$25.00
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 MODELS Download
SBOM891.ZIP (7 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SBOM892.TSC (34 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBOM934A.ZIP (149 KB) - PSpice Model
SIMULATION TOOLS 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

CAD/CAE symbols

Package Pins Download
SC70 (DCK) 6 View options

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