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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 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 Digital interface I2C, SMBus 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 Resolution (Bits) 16 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 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 Digital interface I2C, SMBus 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 Resolution (Bits) 16 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 0 V to 36 V
  • High- or low-side sensing
  • Current, voltage, and power reporting
  • High accuracy:
    • 0.3% gain error (maximum)
    • 25-µV offset (maximum)
  • Configurable averaging options
  • Programmable alert threshold
  • Power supply operation: 2.7 V to 5.5 V
  • Packages:
    • 16-pin RGT (VQFN)
    • 10-pin DGS (VSSOP)
  • Bus voltage sensing from 0 V to 36 V
  • High- or low-side sensing
  • Current, voltage, and power reporting
  • High accuracy:
    • 0.3% gain error (maximum)
    • 25-µV offset (maximum)
  • Configurable averaging options
  • Programmable alert threshold
  • Power supply operation: 2.7 V to 5.5 V
  • 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 0 V to 36 V, with the device powered from a single 2.7-V to 5.5-V supply, drawing 330 µA (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 0 V to 36 V, with the device powered from a single 2.7-V to 5.5-V supply, drawing 330 µA (typical) of supply current. The INA230 is specified over the operating temperature range of –40°C to +125°C.
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Type Title Date
* Data sheet INA230 36-V, 16-Bit, I2C Output Current, Voltage and Power Monitor With Alert datasheet (Rev. A) PDF | HTML 09 Dec 2021
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 30 Apr 2024
EVM User's guide INA230EVM Rev A Model User's Guide and Software Tutorial (Rev. B) PDF | HTML 18 Jul 2023
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

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