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Product details

Parameters

Common mode voltage (Max) (V) 26 Common mode voltage (Min) (V) 0 Input offset (+/-) (Max) (uV) 300 Input offset drift (+/-) (Typ) (uV/C) 0.6 Gain (V/V) 128, 20, 300 Gain error (%) 0.25, 0.5, 1 Gain error drift (+/-) (Max) (ppm/°C) 50 CMRR (Min) (dB) 100 Bandwidth (kHz) 25, 20, 10 Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 2.7 Iq (Max) (mA) 0.25 Number of channels (#) 1 Comparators (#) 0 Features I2C, Programmable Gain Rating Catalog Operating temperature range (C) -40 to 105 open-in-new Find other Current sense amplifiers analog output

Package | Pins | Size

WSON (DSK) 10 6 mm² 2.5 x 2.5 open-in-new Find other Current sense amplifiers analog output

Features

  • Wide Common-Mode Range: 0 V to 26 V
  • ±100 µV Offset (Max, Gain = 300 V/V)
  • Accuracy
    • ±0.25% Shunt Voltage Gain Error (Max)
    • ±0.15% Bus Voltage Gain Error (Max)
    • 1.25% Power Error (Max)
    • 0.3 µV/°C Offset Drift (Max)
    • 50 ppm/°C Gain Drift (Max)
  • Programmable Gains
    • Current Shunt Voltage Gains: 20, 128, 300
    • Bus Voltage Attenuations: 1/10, 1/5, 2/5
  • Monitors/Measures/Reports:
    • Instantaneous Power
    • Bus Voltage
    • Load Current
  • Quiescent Current: 250 µA (Max)
  • Shutdown Current: 1 µA (Max)
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Description

The INA223 is a voltage-output device that monitors the current, bus voltage, and power of a supply line by sensing a voltage drop across a shunt at common-mode voltages from 0 V to 26 V. The common-mode voltage range is independent of the supply voltage. The low offset of the Zerø-Drift architecture enables current sensing with maximum drops across the shunt as low as 10 mV, full-scale.

The INA223 includes a two-wire interface used for adjusting the configuration settings of the device. The interface is used to control the signal (current shunt voltage, bus voltage, or power) that is directed to the device output. Multiple gain and attenuation settings can be programmed through the two-wire interface to allow for application-specific configurations. The programmable gain feature also allows the device to be operated over a much wider dynamic current load range without having to switch the sensing element used.

A shutdown feature is available to disable the device and effectively disconnect it from the shunt resistor and supply voltage, thus reducing the drain on the battery.

The INA223 operates from a single +2.7-V to +5.5-V supply, drawing a maximum supply current of 250 µA. It is specified over the extended temperature range of –40°C to +105°C, and is offered in an SON-10 package.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 8
Type Title Date
* Datasheet Analog Output Current Shunt and Voltage Instantaneous Power Monitor datasheet Jun. 13, 2012
Technical articles How current-sense amplifiers monitor satellite health Feb. 08, 2021
Technical articles A key to accurate system thermal management: monitoring both current flow and temperature Oct. 04, 2018
Technical articles System trade-offs for high- and low-side current measurements Jun. 01, 2017
Application note Energy and Power Monitoring with Digital Current Sensors May 25, 2017
Technical articles Why should you care about overcurrent protection in your system? Jun. 16, 2016
Application note Understanding the I2C Bus Jun. 30, 2015
User guide INA223EVM User's Guide Jun. 11, 2012

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
75
Description

The INA223EVM is a platform for evaluating the performance of the INA223 under various signal, shunt, and supply conditions.

Features
  • USB Power and I/O
  • Small Form Factor
  • Simple Software Interface
  • Software development

    GUI FOR EVALUATION MODULE (EVM) Download
    SBOC428.ZIP (101538 KB)

    Design tools & simulation

    SIMULATION MODEL Download
    SBOM771.TSC (2176 KB) - TINA-TI Reference Design
    SIMULATION MODEL Download
    SBOM772.ZIP (32 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
    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
    SON (DSK) 10 View options

    Ordering & quality

    Information included:
    • RoHS
    • REACH
    • Device marking
    • Lead finish/Ball material
    • MSL rating/Peak reflow
    • MTBF/FIT estimates
    • Material content
    • Qualification summary
    • Ongoing reliability monitoring

    Support & training

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