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INA230

ACTIVE

36-V, 16-bit, I²C output current, voltage and power monitor with alert

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Data sheet

INA230

ACTIVE
Data sheet Order now

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) 25 Input offset drift (±) (max) (µV/°C) 0.1 Input offset drift (±) (typ) (µV/°C) 0.05 Voltage gain (V/V) 1 CMRR (min) (dB) 120 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.42 Gain error (%) 0.3 Gain error drift (±) (max) (ppm/°C) 50 Features Alert Function, Bidirectional, Intergrated Power Monitor, Low-side Capable Number of channels 1 Power measurement accuracy (%) 0.6 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) 25 Input offset drift (±) (max) (µV/°C) 0.1 Input offset drift (±) (typ) (µV/°C) 0.05 Voltage gain (V/V) 1 CMRR (min) (dB) 120 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.42 Gain error (%) 0.3 Gain error drift (±) (max) (ppm/°C) 50 Features Alert Function, Bidirectional, Intergrated Power Monitor, Low-side Capable Number of channels 1 Power measurement accuracy (%) 0.6 Rating Catalog Operating temperature range (°C) -40 to 125
VQFN (RGT) 16 9 mm² 3 x 3 VSSOP (DGS) 10 14.7 mm² 3 x 4.9
  • Bus voltage sensing from 0V to 36V
  • High- or low-side sensing
  • Current, voltage, and power reporting
  • High accuracy:
    • 0.3% gain error (maximum)
    • 25µV offset (maximum)
  • Configurable averaging options
  • Programmable alert threshold
  • Power supply operation: 2.7V to 5.5V
  • Packages:
    • 16-pin RGT (VQFN)
    • 10-pin DGS (VSSOP)
  • Bus voltage sensing from 0V to 36V
  • High- or low-side sensing
  • Current, voltage, and power reporting
  • High accuracy:
    • 0.3% gain error (maximum)
    • 25µV offset (maximum)
  • Configurable averaging options
  • Programmable alert threshold
  • Power supply operation: 2.7V to 5.5V
  • Packages:
    • 16-pin RGT (VQFN)
    • 10-pin DGS (VSSOP)

The INA230 is a current-shunt and power monitor with an I2C interface that features 16 programmable addresses. The INA230 monitors both shunt voltage drops 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 INA230 senses current on buses that vary from 0V to 36V, with the device powered from a single 2.7V to 5.5V supply, drawing 330µA (typical) of supply current. The INA230 is specified over the operating temperature range of –40°C to +125°C.

The INA230 is a current-shunt and power monitor with an I2C interface that features 16 programmable addresses. The INA230 monitors both shunt voltage drops 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 INA230 senses current on buses that vary from 0V to 36V, with the device powered from a single 2.7V to 5.5V supply, drawing 330µA (typical) of supply current. The INA230 is specified over the operating temperature range of –40°C to +125°C.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet INA230 36V, 16-Bit, I2 C Output Current, Voltage and Power Monitor With Alert datasheet (Rev. B) PDF | HTML 31 Jan 2025
Application note Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers PDF | HTML 18 Nov 2024
Application note Using a PCB Copper Trace as a Current-Sense Shunt Resistor PDF | HTML 25 Jan 2022
Application note Digital Interfaces for Current Sensing Devices (Rev. A) PDF | HTML 30 Sep 2021
Application brief Integrating the Current Sensing Signal Path (Rev. B) PDF | HTML 29 Sep 2021
Application note Getting Started with Digital Power Monitors (Rev. A) PDF | HTML 02 Sep 2021
Application brief Precision, Low-Side Current Measurement (Rev. B) 06 Mar 2019
Application brief External current sense amps vs integrated onboard amplifiers for current sensing (Rev. B) 19 Feb 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Design guide –48-V Telecom Current, Voltage, and Power Sense With Isolation Reference Design (Rev. A) 28 Sep 2017
White paper Overcurrent protection enables more efficient and reliable systems 16 May 2016
Application note Understanding the I2C Bus PDF | HTML 30 Jun 2015
Technical article How to get started with current sense amplifiers – part 2 PDF | HTML 26 May 2015

Design & development

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

Evaluation board

INA230EVM — INA230 evaluation module for 36-V, 16-bit, I²C output digital power monitor with alert

The INA230 evaluation module (EVM) is a platform to evaluate the main features and performance of the INA230. 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
Not available on TI.com
GUI for evaluation module (EVM)

SBOC421 — INA230EVM Rev A Software and Source Code

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Simulation model

INA230 IBIS Model

SBOM750.ZIP (34 KB) - IBIS Model
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Calculation tool

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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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Calculation tool

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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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Reference designs

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Package Pins CAD symbols, footprints & 3D models
VQFN (RGT) 16 Ultra Librarian
VSSOP (DGS) 10 Ultra Librarian
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