INA226

ACTIVE

36V, 16-bit, ultra-precise i2c output current/voltage/power monitor w/alert

Product details

Common-mode voltage (max) (V) 36 Common-mode voltage (min) (V) 0 Digital interface I2C, SMBus Resolution (Bits) 16 Input offset (±) (max) (µV) 10 Input offset drift (±) (max) (µV/°C) 0.1 Input offset drift (±) (typ) (µV/°C) 0.02 Voltage gain (V/V) 1 CMRR (min) (dB) 126 Iq (max) (mA) 0.42 Gain error (%) 0.1 Gain error drift (±) (max) (ppm/°C) 50 Features Alert Function, Bidirectional, Intergrated Power Monitor, Low-side Capable, Ultra precise Number of channels 1 Power measurement accuracy (%) 0.2 Rating Catalog Operating temperature range (°C) -40 to 125
Common-mode voltage (max) (V) 36 Common-mode voltage (min) (V) 0 Digital interface I2C, SMBus Resolution (Bits) 16 Input offset (±) (max) (µV) 10 Input offset drift (±) (max) (µV/°C) 0.1 Input offset drift (±) (typ) (µV/°C) 0.02 Voltage gain (V/V) 1 CMRR (min) (dB) 126 Iq (max) (mA) 0.42 Gain error (%) 0.1 Gain error drift (±) (max) (ppm/°C) 50 Features Alert Function, Bidirectional, Intergrated Power Monitor, Low-side Capable, Ultra precise Number of channels 1 Power measurement accuracy (%) 0.2 Rating Catalog Operating temperature range (°C) -40 to 125
VSSOP (DGS) 10 14.7 mm² (3 mm × 4.9 mm)
  • Senses bus voltages from 0V to 36V
  • High-side or low-side sensing
  • Reports current, voltage, and power
  • High accuracy:
    • Gain error: 0.1% (maximum)
    • Offset: 10µV (maximum)
  • Configurable averaging options
  • 16 programmable addresses
  • Operates from 2.7V to 5.5V power supply
  • 10-pin DGS (VSSOP) package
  • Senses bus voltages from 0V to 36V
  • High-side or low-side sensing
  • Reports current, voltage, and power
  • High accuracy:
    • Gain error: 0.1% (maximum)
    • Offset: 10µV (maximum)
  • Configurable averaging options
  • 16 programmable addresses
  • Operates from 2.7V to 5.5V power supply
  • 10-pin DGS (VSSOP) package

The INA226 is a current shunt and power monitor with an I2C™- or SMBUS-compatible interface. The device monitors both a shunt voltage drop and bus supply voltage. Programmable calibration value, conversion times, and averaging, combined with an internal multiplier, enable direct readouts of current in amperes and power in watts.

The INA226 senses current on common-mode bus voltages that can vary from 0V to 36V, independent of the supply voltage. The device operates from a single 2.7V to 5.5V supply, drawing a typical of 330µA of supply current. The device is specified over the operating temperature range between –40°C and 125°C and features up to 16 programmable addresses on the I2C-compatible interface.

The INA226 is a current shunt and power monitor with an I2C™- or SMBUS-compatible interface. The device monitors both a shunt voltage drop and bus supply voltage. Programmable calibration value, conversion times, and averaging, combined with an internal multiplier, enable direct readouts of current in amperes and power in watts.

The INA226 senses current on common-mode bus voltages that can vary from 0V to 36V, independent of the supply voltage. The device operates from a single 2.7V to 5.5V supply, drawing a typical of 330µA of supply current. The device is specified over the operating temperature range between –40°C and 125°C and features up to 16 programmable addresses on the I2C-compatible interface.

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INA230 ACTIVE 36-V, 16-bit, I²C output current, voltage and power monitor with alert Increased Vos, Vos drift and reduced CMRR performance

Technical documentation

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Top documentation Type Title Format options Date
* Data sheet INA226 36V, 16-Bit, Ultra-Precise I2C Output Current, Voltage, and Power Monitor With Alert datasheet (Rev. B) PDF | HTML Sep 17, 2024
Application note Using a PCB Copper Trace as a Current Sense Shunt Resistor (Rev. A) PDF | HTML Apr 27, 2026
Application note Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers PDF | HTML Nov 18, 2024
Application brief Current Sensing Applications in Communication Infrastructure Equipment (Rev. C) PDF | HTML Aug 8, 2023
Application brief Improving Power Amplifier Efficiency With Current Monitors (Rev. B) PDF | HTML Jul 24, 2023
Application brief Integrating the Current Sensing Resistor (Rev. D) PDF | HTML Apr 7, 2023
Technical article 4 key current-sensing design trends that are powering electrification PDF | HTML Feb 21, 2023
E-book An Engineer's Guide to Current Sensing (Rev. B) Apr 12, 2022
Application brief Extending Beyond the Max Common-Mode Range of Discrete Current-Sense Amplifiers (Rev. A) PDF | HTML Mar 10, 2022
Application note Digital Interfaces for Current Sensing Devices (Rev. A) PDF | HTML Sep 30, 2021
Application brief Integrating the Current Sensing Signal Path (Rev. B) PDF | HTML Sep 29, 2021
Application brief Integrated, Current Sensing Analog-to-Digital Converter (Rev. A) PDF | HTML Sep 28, 2021
Selection guide Current Sense Amplifiers (Rev. E) Sep 20, 2021
Application note Getting Started with Digital Power Monitors (Rev. A) PDF | HTML Sep 2, 2021
Technical article How current sensors help monitor and protect the world’s wireless infrastructure PDF | HTML Dec 30, 2019
Application brief Precision, Low-Side Current Measurement (Rev. B) Mar 6, 2019
Application brief External current sense amps vs integrated onboard amplifiers for current sensing (Rev. B) Feb 19, 2019
Selection guide Power Management Guide 2018 (Rev. R) Jun 25, 2018
User guide IMETER-BOOST User's Guide (Rev. A) Mar 9, 2018
Design guide –48-V Telecom Current, Voltage, and Power Sense With Isolation Reference Design (Rev. A) Sep 28, 2017
Application brief Energy and Power Monitoring with Digital Current Sensors May 25, 2017
White paper Overcurrent protection enables more efficient and reliable systems May 16, 2016
Application note Applying I²C Compatible Temperature Sensors in Systems with Slow Clock Edges Dec 1, 2015
Technical article How to get started with current sense amplifiers – part 3 PDF | HTML Jul 9, 2015
Application note Understanding the I2C Bus PDF | HTML Jun 30, 2015
Technical article How to get started with current sense amplifiers – part 2 PDF | HTML May 26, 2015
Technical article How to get started with current sense amplifiers – part 1 PDF | HTML May 19, 2015
Analog design Journal System telemetry: What, why and how? Apr 11, 2014

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VSSOP (DGS) 10 Ultra Librarian

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