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INA2227

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Dual-channel 16-bit E3-driver-capable current, voltage, power and energy monitor with I²C interface

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Data sheet

INA2227

ACTIVE
Data sheet Order now

Product details

Common-mode voltage (max) (V) 48 Common-mode voltage (min) (V) -0.3 Digital interface I2C, SMBus Resolution (Bits) 16 Input offset (±) (max) (µV) 75 Input offset drift (±) (max) (µV/°C) 0.5 Voltage gain (V/V) 1 CMRR (min) (dB) 110 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 1.7 Iq (max) (mA) 0.5 Gain error (%) 0.5 Gain error drift (±) (max) (ppm/°C) 50 Features Alert Function, Bidirectional, Intergrated Power Monitor, Low-side Capable Number of channels 2 Power measurement accuracy (%) 1 Rating Catalog Operating temperature range (°C) -40 to 125
Common-mode voltage (max) (V) 48 Common-mode voltage (min) (V) -0.3 Digital interface I2C, SMBus Resolution (Bits) 16 Input offset (±) (max) (µV) 75 Input offset drift (±) (max) (µV/°C) 0.5 Voltage gain (V/V) 1 CMRR (min) (dB) 110 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 1.7 Iq (max) (mA) 0.5 Gain error (%) 0.5 Gain error drift (±) (max) (ppm/°C) 50 Features Alert Function, Bidirectional, Intergrated Power Monitor, Low-side Capable Number of channels 2 Power measurement accuracy (%) 1 Rating Catalog Operating temperature range (°C) -40 to 125
DSBGA (YBJ) 16 2.56 mm² 1.6 x 1.6
  • High-side or low-side current sensing
  • Operates from a 1.7V to 5.5V power supply
  • Reports current, voltage, power, and energy
  • Programmable full scale range: 20mV / 80mV
  • Input common mode range: –0.3V to 48V
  • Current monitoring accuracy:
    • 16-bit ADC resolution
    • 0.5% gain error (maximum)
    • 75µV offset (maximum)
  • Power monitoring accuracy:
    • 1% full scale (maximum)
  • Energy monitoring accuracy:
    • 1.5% full scale (maximum)
  • Low input bias currents: 5nA (maximum)
  • Low disable current: 50nA (maximum)
  • Configurable averaging options
  • Alert limits for over and under current events
  • 1.2V compliant I2C, SMBus interface
  • 16-pin selectable addresses
  • DSBGA-16 Package (1.5mm × 1.5mm)
  • High-side or low-side current sensing
  • Operates from a 1.7V to 5.5V power supply
  • Reports current, voltage, power, and energy
  • Programmable full scale range: 20mV / 80mV
  • Input common mode range: –0.3V to 48V
  • Current monitoring accuracy:
    • 16-bit ADC resolution
    • 0.5% gain error (maximum)
    • 75µV offset (maximum)
  • Power monitoring accuracy:
    • 1% full scale (maximum)
  • Energy monitoring accuracy:
    • 1.5% full scale (maximum)
  • Low input bias currents: 5nA (maximum)
  • Low disable current: 50nA (maximum)
  • Configurable averaging options
  • Alert limits for over and under current events
  • 1.2V compliant I2C, SMBus interface
  • 16-pin selectable addresses
  • DSBGA-16 Package (1.5mm × 1.5mm)

The INA2227 device is a dual channel 16-bit digital current monitor with an I2C/SMBus-compatible interface that is compliant with digital bus voltages from 1.2V to 5V. The device monitors the voltage across an external sense resistor and reports values for shunt voltage, bus voltage, current, power, and energy for each channel.

The INA2227 features programmable ADC conversion times and averaging that is common for all channels. Each channel has a programmable calibration value with an internal multiplier that enables direct readouts of current in amperes, power in watts, and energy in joules. Each channel has a dedicated VBUS pin to monitor the bus voltage and can alert on overcurrent and undercurrent conditions, as well as on overvoltage and undervoltage conditions.High input impedance while in current measurement mode allows use of larger current sense resistors needed to measure small value system currents.

The INA2227 senses current on common-mode bus voltages that can vary from –0.3V to 48V, independent of the supply voltage. The device operates from a single 1.7V to 5.5V supply, drawing a typical supply current of 400µA in normal operation. The device can be placed in a low-power standby mode where the typical operating current is 2.5µA and can be fully disabled using the enable pin to achieve an supply current less than 50nA. The device is specified over the operating temperature range between –40°C and 125°C and features up to 16 programmable addresses.

The INA2227 device is a dual channel 16-bit digital current monitor with an I2C/SMBus-compatible interface that is compliant with digital bus voltages from 1.2V to 5V. The device monitors the voltage across an external sense resistor and reports values for shunt voltage, bus voltage, current, power, and energy for each channel.

The INA2227 features programmable ADC conversion times and averaging that is common for all channels. Each channel has a programmable calibration value with an internal multiplier that enables direct readouts of current in amperes, power in watts, and energy in joules. Each channel has a dedicated VBUS pin to monitor the bus voltage and can alert on overcurrent and undercurrent conditions, as well as on overvoltage and undervoltage conditions.High input impedance while in current measurement mode allows use of larger current sense resistors needed to measure small value system currents.

The INA2227 senses current on common-mode bus voltages that can vary from –0.3V to 48V, independent of the supply voltage. The device operates from a single 1.7V to 5.5V supply, drawing a typical supply current of 400µA in normal operation. The device can be placed in a low-power standby mode where the typical operating current is 2.5µA and can be fully disabled using the enable pin to achieve an supply current less than 50nA. The device is specified over the operating temperature range between –40°C and 125°C and features up to 16 programmable addresses.
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* Data sheet INA2227 48V, Dual Channel, 16-Bit, Current, Voltage, Power, and Energy Monitor With an I2 C Interface datasheet PDF | HTML 19 Jun 2025
Certificate INA2227EVM EU Declaration of Conformity (DoC) 16 May 2025

Design & development

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

Evaluation board

INA2227EVM — INA2227 evaluation module

The INA2227 evaluation module (EVM) is a platform to evaluate the main features and performance of the INA2227. The EVM supports current measurements up to 10A per channel and comes with graphical user interface (GUI) support to read and write to device registers.
User guide: PDF | HTML
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Driver or library

INA2227-WINDOWS-10-11-E3-DRIVER — INA2227 Energy Estimation Engine (E3) Driver for Windows 10 and 11.

Energy Estimation Engine (E3) is a software framework that tracks and attributes power consumption to specific hardware components and software processes. It leverages the EMI (Energy Metering Interface) to report the energy consumption of various power rails.
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IDE, configuration, compiler or debugger

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Support software

E3-CONSOLE-APPLICATION-SW — Energy Estimation Engine (E3) driver evaluation software

The E3 Console application uses the Energy Meter Interface (EMI) IOCTLs defined by Microsoft to extract power rail data and measurement. This application can be used to evaluate TI's E3 drivers.
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Calculation tool

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

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Calculation tool

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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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 (...)
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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 (...)
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DSBGA (YBJ) 16 Ultra Librarian
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