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INA220-Q1

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AEC-Q100, 26V, 12-bit, i2c output current/voltage/power monitor

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Data sheet

INA220-Q1

ACTIVE
Data sheet Order now

Product details

Common-mode voltage (max) (V) 26 Common-mode voltage (min) (V) 0 Digital interface I2C, SMBus Resolution (Bits) 12 Input offset (±) (max) (µV) 50 Input offset drift (±) (max) (µV/°C) 0.5 Input offset drift (±) (typ) (µV/°C) 0.16 Voltage gain (V/V) 0.125, 0.25, 0.5, 1 CMRR (min) (dB) 120 Iq (max) (mA) 1 Gain error (%) 0.3 Gain error drift (±) (max) (ppm/°C) 33, 83 Features Bidirectional, Intergrated Power Monitor, Low-side Capable, Programmable Gain Number of channels 1 Power measurement accuracy (%) 0.8 Rating Automotive Operating temperature range (°C) -40 to 125
Common-mode voltage (max) (V) 26 Common-mode voltage (min) (V) 0 Digital interface I2C, SMBus Resolution (Bits) 12 Input offset (±) (max) (µV) 50 Input offset drift (±) (max) (µV/°C) 0.5 Input offset drift (±) (typ) (µV/°C) 0.16 Voltage gain (V/V) 0.125, 0.25, 0.5, 1 CMRR (min) (dB) 120 Iq (max) (mA) 1 Gain error (%) 0.3 Gain error drift (±) (max) (ppm/°C) 33, 83 Features Bidirectional, Intergrated Power Monitor, Low-side Capable, Programmable Gain Number of channels 1 Power measurement accuracy (%) 0.8 Rating Automotive Operating temperature range (°C) -40 to 125
VSSOP (DGS) 10 14.7 mm² (3 mm × 4.9 mm)
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the following results:
    • Device Temperature Grade 1: –40°C to +125°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C3B
  • High- or Low-Side Sensing
  • Senses Bus Voltages from 0 V to 26 V
  • Reports Current, Voltage, and Power
  • 16 Programmable Addresses
  • High Accuracy: 0.5% (Maximum) Over
    Temperature
  • User-Programmable Calibration
  • Fast (2.56-MHz) I2C- or SMBUS-Compatible
    Interface
  • VSSOP-10 Package
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the following results:
    • Device Temperature Grade 1: –40°C to +125°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C3B
  • High- or Low-Side Sensing
  • Senses Bus Voltages from 0 V to 26 V
  • Reports Current, Voltage, and Power
  • 16 Programmable Addresses
  • High Accuracy: 0.5% (Maximum) Over
    Temperature
  • User-Programmable Calibration
  • Fast (2.56-MHz) I2C- or SMBUS-Compatible
    Interface
  • VSSOP-10 Package

The INA220-Q1 device is a current shunt and power monitor with an I2C- or SMBUS-compatible interface. The INA220-Q1 device monitors both shunt drop and supply voltage. A programmable calibration value, combined with an internal multiplier, enables direct readouts in amperes. An additional multiplying register calculates power in watts. The I2C- or SMBUS-compatible interface features 16 programmable addresses. The separate shunt input on the INA220-Q1 device allows it to be used in systems with low-side sensing.

The INA220-Q1 device senses across shunts on buses that can vary from 0 to 26 V, useful for low-side sensing or CPU power supplies. The device uses a single 3- to 5.5-V supply, drawing a maximum of 1 mA of supply current. The INA220-Q1 device operates from –40°C to +125°C.

The INA220-Q1 device is a current shunt and power monitor with an I2C- or SMBUS-compatible interface. The INA220-Q1 device monitors both shunt drop and supply voltage. A programmable calibration value, combined with an internal multiplier, enables direct readouts in amperes. An additional multiplying register calculates power in watts. The I2C- or SMBUS-compatible interface features 16 programmable addresses. The separate shunt input on the INA220-Q1 device allows it to be used in systems with low-side sensing.

The INA220-Q1 device senses across shunts on buses that can vary from 0 to 26 V, useful for low-side sensing or CPU power supplies. The device uses a single 3- to 5.5-V supply, drawing a maximum of 1 mA of supply current. The INA220-Q1 device operates from –40°C to +125°C.
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* Data sheet INA220-Q1 Automotive Grade, 26-V, Bi-Directional, Zero-Drift, Low- or High-Side, I2C-Compatible Current/Power Monitor datasheet (Rev. B) PDF | HTML Mar 24, 2016
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 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
Application note Getting Started with Digital Power Monitors (Rev. A) PDF | HTML Sep 2, 2021
Application brief Energy and Power Monitoring with Digital Current Sensors May 25, 2017
Application note Understanding the I2C Bus PDF | HTML Jun 30, 2015
More literature INA220EVM (Quick-Start Guide Video) Aug 14, 2009

Design & development

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Evaluation board

INA220EVM — INA220 evaluation module for 26-V, 12-bit, I²C output digital power monitor

The INA220 evaluation module (EVM) is a platform to evaluate the main features and performance of the INA220. The EVM supports current measurements up to 10-A and comes with graphical user interface (GUI) support to read and write to device registers.

User guide: PDF | HTML
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SBOC298 — INA220EVM Rev A Source Code

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GUI for evaluation module (EVM)

SBOC297 — INA220EVM Rev A Software

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Simulation model

INA220 IBIS Model (Rev. A)

SBOM419A.ZIP (38 KB) - IBIS model
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Calculation tool

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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 (...)
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SBOR021 — Power Monitor Tool

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VSSOP (DGS) 10 Ultra Librarian
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