Product details

Common mode voltage (Max) (V) 26 Common mode voltage (Min) (V) 0 Input offset (+/-) (Max) (uV) 50 Input offset drift (+/-) (Typ) (uV/C) 0.16 Gain (V/V) 1, 0.5, 0.25, 0.125 Gain error (%) 0.5 Gain error drift (+/-) (Max) (ppm/°C) 33 CMRR (Min) (dB) 120 Bandwidth (kHz) 5.5 Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 3 Iq (Max) (mA) 1 Digital interface I2C, SMBus Features Bi-directional, Low-side Capable, Programmable Gain Resolution (Bits) 12 Rating Automotive Operating temperature range (C) -40 to 125
Common mode voltage (Max) (V) 26 Common mode voltage (Min) (V) 0 Input offset (+/-) (Max) (uV) 50 Input offset drift (+/-) (Typ) (uV/C) 0.16 Gain (V/V) 1, 0.5, 0.25, 0.125 Gain error (%) 0.5 Gain error drift (+/-) (Max) (ppm/°C) 33 CMRR (Min) (dB) 120 Bandwidth (kHz) 5.5 Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 3 Iq (Max) (mA) 1 Digital interface I2C, SMBus Features Bi-directional, Low-side Capable, Programmable Gain Resolution (Bits) 12 Rating Automotive Operating temperature range (C) -40 to 125
VSSOP (DGS) 10 9 mm² 3 x 3
  • 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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Technical documentation

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Type Title Date
* Data sheet INA220-Q1 Automotive Grade, 26-V, Bi-Directional, Zero-Drift, Low- or High-Side, I2C-Compatible Current/Power Monitor datasheet (Rev. B) 24 Mar 2016
Application note Using a PCB Copper Trace as a Current-Sense Shunt Resistor 25 Jan 2022
Application note Digital Interfaces for Current Sensing Devices (Rev. A) 30 Sep 2021
Application note Integrating the Current Sensing Signal Path (Rev. B) 29 Sep 2021
Application note Integrated, Current Sensing Analog-to-Digital Converter (Rev. A) 28 Sep 2021
Application note Getting Started with Digital Power Monitors (Rev. A) 02 Sep 2021
Technical article Solving the multidecade current-measurement challenge in your 48-V BMS application 14 Jun 2021
Technical article How current-sense amplifiers monitor satellite health 08 Feb 2021
Technical article A key to accurate system thermal management: monitoring both current flow and temperature 04 Oct 2018
Technical article System trade-offs for high- and low-side current measurements 01 Jun 2017
Application note Energy and Power Monitoring with Digital Current Sensors 25 May 2017
EVM User's guide INA220EVM (Rev. B) 18 May 2016
Application note Understanding the I2C Bus 30 Jun 2015
More literature INA220EVM (Quick-Start Guide Video) 14 Aug 2009

Design & development

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

Evaluation board

INA220EVM — INA220 Evaluation Module

The INA220EVM key hardware consists of two boards, INA220 Test Board and USB DIG Platform. The INA220 Test Board contains the INA220, terminal strips for external connections, and several jumpers for device configuration. The USB DIG Platform contains an 8052 microcontroller with a built in USB (...)

Code example or demo

INA220EVM Source Code

SBOC298.ZIP (8209 KB)
GUI for evaluation module (EVM)

INA220EVM Software

SBOC297.ZIP (3637 KB)
Simulation model

INA220 IBIS Model (Rev. A)

SBOM419A.ZIP (38 KB) - IBIS Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

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 (...)
Calculation tool

Power Monitor Tool

SBOR021.ZIP (266 KB)
Schematic

INA220EVM Schematic

SBOR007.ZIP (47 KB)
Package Pins Download
VSSOP (DGS) 10 View options

Ordering & quality

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