Home Amplifiers Current-sense amplifiers Digital power monitors
Home
Amplifiers
Current-sense amplifiers
Digital power monitors

INA236

ACTIVE

48-V, 16-bit ultraprecise I²C output digital power monitor with alert in WCSP

Order now
Data sheet

INA236

ACTIVE
Data sheet Order now

Product details

Common-mode voltage (max) (V) 48 Common-mode voltage (min) (V) -0.3 Digital interface I2C Resolution (Bits) 16 Input offset (±) (max) (µV) 5 Input offset drift (±) (max) (µV/°C) 0.025 Input offset drift (±) (typ) (µV/°C) 0.005 Voltage gain (V/V) 1 CMRR (min) (dB) 136 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 1.7 Iq (max) (mA) 0.5 Features Alert Function, Bidirectional, Integrated Power Monitor, Low-side Capable, Ultra precise Number of channels 1 Power measurement accuracy (%) 0.2 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 Resolution (Bits) 16 Input offset (±) (max) (µV) 5 Input offset drift (±) (max) (µV/°C) 0.025 Input offset drift (±) (typ) (µV/°C) 0.005 Voltage gain (V/V) 1 CMRR (min) (dB) 136 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 1.7 Iq (max) (mA) 0.5 Features Alert Function, Bidirectional, Integrated Power Monitor, Low-side Capable, Ultra precise Number of channels 1 Power measurement accuracy (%) 0.2 Rating Catalog Operating temperature range (°C) -40 to 125
DSBGA (YBJ) 8 0.2316 mm² 1.2 x 0.193 SOT-23-THN (DDF) 8 8.12 mm² 2.9 x 2.8
  • High-side or low-side current sensing
  • Operates from a 1.7-V to 5.5-V power supply
  • Reports current, voltage and power
  • Programmable full scale range: 20mV / 80mV
  • Input common mode range: –0.3 V to 48 V
  • Current monitoring accuracy:
    • 16-bit ADC resolution
    • 0.1% gain error (maximum)
    • 5-µV offset (maximum)
  • Low input bias current: 10 nA (maximum)
  • Configurable averaging options
  • General call addressing allows conversion synchronization among devices
  • Alert limits for over and under current events
  • 1.2-V compliant I 2C, SMBus interface
  • Two device address options with a 4-pin selectable address
  • DSBGA-8 Package (0.745 mm × 1.508 mm)
  • SOT23-8 Package
  • Operating temperature: –40°C and +125°C
  • High-side or low-side current sensing
  • Operates from a 1.7-V to 5.5-V power supply
  • Reports current, voltage and power
  • Programmable full scale range: 20mV / 80mV
  • Input common mode range: –0.3 V to 48 V
  • Current monitoring accuracy:
    • 16-bit ADC resolution
    • 0.1% gain error (maximum)
    • 5-µV offset (maximum)
  • Low input bias current: 10 nA (maximum)
  • Configurable averaging options
  • General call addressing allows conversion synchronization among devices
  • Alert limits for over and under current events
  • 1.2-V compliant I 2C, SMBus interface
  • Two device address options with a 4-pin selectable address
  • DSBGA-8 Package (0.745 mm × 1.508 mm)
  • SOT23-8 Package
  • Operating temperature: –40°C and +125°C

The INA236 device is a 16-bit digital current monitor with an I 2C/SMBus-compatible interface that is compliant with a wide range of digital bus voltages such as 1.2 V, 1.8 V, 3.3 V, and 5.0 V. The device monitors the voltage across an external sense resistor and reports values for current, bus voltage, and power.

The INA236 features programmable ADC conversion times and averaging. The device also has a programmable calibration value with an internal multiplier that enables direct readouts of current in amperes and power in watts. The device monitors the bus voltage present on the IN– pin and can alert on overcurent and undercurrent conditions as well as 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 INA236 senses current on common-mode bus voltages that can vary from –0.3 V to 48 V, independent of the supply voltage. The device operates from a single 1.7-V to 5.5-V supply, drawing a typical supply current of 300 µA in normal operation. The device can be placed in a low-power standby mode where the typical operating current is 2.2 µA.

The INA236 device is a 16-bit digital current monitor with an I 2C/SMBus-compatible interface that is compliant with a wide range of digital bus voltages such as 1.2 V, 1.8 V, 3.3 V, and 5.0 V. The device monitors the voltage across an external sense resistor and reports values for current, bus voltage, and power.

The INA236 features programmable ADC conversion times and averaging. The device also has a programmable calibration value with an internal multiplier that enables direct readouts of current in amperes and power in watts. The device monitors the bus voltage present on the IN– pin and can alert on overcurent and undercurrent conditions as well as 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 INA236 senses current on common-mode bus voltages that can vary from –0.3 V to 48 V, independent of the supply voltage. The device operates from a single 1.7-V to 5.5-V supply, drawing a typical supply current of 300 µA in normal operation. The device can be placed in a low-power standby mode where the typical operating current is 2.2 µA.
filter Find other Digital power monitors
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
INA232 ACTIVE 48-V, 16-bit high-precision I²C output digital power monitor with alert INA232 is a pin-for-pin alternative with reduced accuracy for reduced cost.

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 7
Top documentation Type Title Format options Date
* Data sheet INA236 48-V, 16-Bit, Ultra-Precise, Current, Voltage, and Power Monitor With an I2C Interface datasheet (Rev. D) PDF | HTML 14 Aug 2023
Application note Closed Loop Constant Power Drive to Simplify Heater Element Control and Extend Battery Life PDF | HTML 29 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 note Getting Started with Digital Power Monitors (Rev. A) PDF | HTML 02 Sep 2021
Certificate INA236EVM EU RoHS Declaration of Conformity (DoC) 01 Jun 2021

Design & development

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

Evaluation board

INA234_236EVM — INA232, INA234 and INA236 evaluation module for current/voltage/power monitors

This evaluation module (EVM) is an easy-to-use platform to evaluate the main features and performance of the INA232, INA234 or INA236. The EVM comes with GUI support to read and write to device registers.
User guide: PDF | HTML
View Options
IDE, configuration, compiler or debugger

ASC-STUDIO-INA236 — ASC studio (SysConfig) for configuring all aspects of the INA236 digital power monitor

SysConfig can be used to help simplify configuration challenges and accelerate software development with the INA236 digital power monitor.
Supported products & hardware

Supported products & hardware
Launch
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 (...)

Supported products & hardware

Supported products & hardware
Launch Download
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 (...)
Supported products & hardware

Supported products & hardware
Download
Calculation tool

SBOR021 — Power Monitor Tool

Power Monitor Tool
Supported products & hardware

Supported products & hardware
Download
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 (...)
Request
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 (...)
User guide: PDF
View Options
Package Pins CAD symbols, footprints & 3D models
DSBGA (YBJ) 8 Ultra Librarian
SOT-23-THN (DDF) 8 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos