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INA260

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36V, 16-bit, precision i2c output current/voltage/power monitor w/ int. shunt resistor

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Data sheet

INA260

ACTIVE
Data sheet Order now

Product details

Common mode voltage (Max) (V) 36 Common mode voltage (Min) (V) 0 Input offset (+/-) (Max) (uV) 5mA Input offset drift (+/-) (Typ) (uV/C) 1 Gain (V/V) 1 Gain error (%) 0.15 Gain error drift (+/-) (Max) (ppm/°C) 35 CMRR (Min) (dB) 126 Bandwidth (kHz) 3.5 Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 2.7 Iq (Max) (mA) 0.42 Digital interface I2C, SMBus Features Alert Function, Bi-directional, Integrated Power Monitor, Integrated Shunt, Low-side Capable, Ultra precise Resolution (Bits) 16 Rating Catalog Operating temperature range (C) -40 to 125
Common mode voltage (Max) (V) 36 Common mode voltage (Min) (V) 0 Input offset (+/-) (Max) (uV) 5mA Input offset drift (+/-) (Typ) (uV/C) 1 Gain (V/V) 1 Gain error (%) 0.15 Gain error drift (+/-) (Max) (ppm/°C) 35 CMRR (Min) (dB) 126 Bandwidth (kHz) 3.5 Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 2.7 Iq (Max) (mA) 0.42 Digital interface I2C, SMBus Features Alert Function, Bi-directional, Integrated Power Monitor, Integrated Shunt, Low-side Capable, Ultra precise Resolution (Bits) 16 Rating Catalog Operating temperature range (C) -40 to 125
TSSOP (PW) 16 22 mm² 5 x 4.4
  • Precision Integrated Shunt Resistor:
    • Current Sense Resistance: 2 mΩ
    • Tolerance Equivalent to 0.1%
    • 15-A Continuous From –40°C to +85°C
    • 10 ppm/°C Temperature Coefficient (0°C to +125°C )
  • Senses Bus Voltages From 0 V to 36 V
  • High-Side or Low-Side Sensing
  • Reports Current, Voltage, and Power
  • High Accuracy:
    • 0.15% System Gain Error (Maximum)
    • 5-mA Offset (Maximum)
  • Configurable Averaging Options
  • 16 Programmable Addresses
  • Operates From a 2.7-V to 5.5-V Power Supply
  • 16-Pin, TSSOP Package
  • Precision Integrated Shunt Resistor:
    • Current Sense Resistance: 2 mΩ
    • Tolerance Equivalent to 0.1%
    • 15-A Continuous From –40°C to +85°C
    • 10 ppm/°C Temperature Coefficient (0°C to +125°C )
  • Senses Bus Voltages From 0 V to 36 V
  • High-Side or Low-Side Sensing
  • Reports Current, Voltage, and Power
  • High Accuracy:
    • 0.15% System Gain Error (Maximum)
    • 5-mA Offset (Maximum)
  • Configurable Averaging Options
  • 16 Programmable Addresses
  • Operates From a 2.7-V to 5.5-V Power Supply
  • 16-Pin, TSSOP Package

The INA260 is a digital-output, current, power, and voltage monitor with an I2C and SMBus™-compatible interface with an integrated precision shunt resistor. It enables high-accuracy current and power measurements and over-current detection at common-mode voltages that can vary from 0 V to 36 V, independent of the supply voltage. The device is a bidirectional, low- or high-side, current-shunt monitor that measures current flowing through the internal current-sensing resistor. The integration of the precision current-sensing resistor provides calibration-equivalent measurement accuracy with ultra-low temperature drift performance and ensures that an optimized Kelvin layout for the sensing resistor is always obtained.

The INA260 features up to 16 programmable addresses on the I2C-compatible interface. The digital interface allows programmable alert thresholds, analog-to-digital converter (ADC) conversion times, and averaging. To facilitate ease of use, an internal multiplier enables direct readouts of current in amperes and power in watts.

The device operates from a single 2.7-V to 5.5-V supply, drawing 310 µA (typical) of supply current. The INA260 is specified over the operating temperature range between –40°C and +125°C and is available in the 16-pin TSSOP package.

The INA260 is a digital-output, current, power, and voltage monitor with an I2C and SMBus™-compatible interface with an integrated precision shunt resistor. It enables high-accuracy current and power measurements and over-current detection at common-mode voltages that can vary from 0 V to 36 V, independent of the supply voltage. The device is a bidirectional, low- or high-side, current-shunt monitor that measures current flowing through the internal current-sensing resistor. The integration of the precision current-sensing resistor provides calibration-equivalent measurement accuracy with ultra-low temperature drift performance and ensures that an optimized Kelvin layout for the sensing resistor is always obtained.

The INA260 features up to 16 programmable addresses on the I2C-compatible interface. The digital interface allows programmable alert thresholds, analog-to-digital converter (ADC) conversion times, and averaging. To facilitate ease of use, an internal multiplier enables direct readouts of current in amperes and power in watts.

The device operates from a single 2.7-V to 5.5-V supply, drawing 310 µA (typical) of supply current. The INA260 is specified over the operating temperature range between –40°C and +125°C and is available in the 16-pin TSSOP package.
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Technical documentation

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Type Title Date
* Data sheet INA260 Precision Digital Current and Power Monitor With Low-Drift, Precision Integrated Shunt datasheet (Rev. C) PDF | HTML 13 Dec 2016
Application note Integrating the Current Sensing Resistor (Rev. C) PDF | HTML 09 Mar 2022
Application note Digital Interfaces for Current Sensing Devices (Rev. A) PDF | HTML 30 Sep 2021
Application note Integrating the Current Sensing Signal Path (Rev. B) PDF | HTML 29 Sep 2021
Application note Integrated, Current Sensing Analog-to-Digital Converter (Rev. A) PDF | HTML 28 Sep 2021
Selection guide Current Sense Amplifiers (Rev. E) 20 Sep 2021
Application note Getting Started with Digital Power Monitors (Rev. A) PDF | HTML 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
E-book Simplifying Current Sensing (Rev. A) 09 Jan 2020
Application note Precision, Low-Side Current Measurement (Rev. B) 06 Mar 2019
Technical article A key to accurate system thermal management: monitoring both current flow and temperature 04 Oct 2018
Application note Integrated-Resistor Current Sensors Simplify PCB Design 30 Jun 2017
Technical article System trade-offs for high- and low-side current measurements 01 Jun 2017
EVM User's guide INA260EVM-PDK User's Guide 10 Nov 2016

Design & development

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

Evaluation board

INA260EVM — High Precision Current Shunt Monitor Evaluation Module

The INA260EVM is a compact, easy-to-use platform for evaluating the main features and performance of the INA260 High Precision Current Shunt Monitor across its specified input current, common-mode voltage and temperature ranges. Instrumentation needs for performance evaluation are minimal. EVM (...)
User guide: PDF
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GUI for evaluation module (EVM)

INA260 EVM GUI

SBOC478.ZIP (6020 KB)
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Simulation model

INA260 IBIS Model

SBOMA95.ZIP (34 KB) - IBIS Model
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Calculation tool

Power Monitor Tool

SBOR021.ZIP (266 KB)
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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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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
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Reference designs

TIDA-01608 — Isolated Current Sense with Integrated Shunt Resistor and I2C Interface Reference Design

This verified design can accurately measure current on a bus that carries hundreds of volts. This design is targeted for solar and server applications due to their wide high-voltage input range requirements. This design uses the INA260 current shunt monitor with integrated shunt resistor for (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01590 — Reference Design for 1200V Isolated I2C High Side Current Sensing for Solar Combiner Boxes

This reference design is an isolated high-side current sensing design for a smart combiner box in a grounded or ungrounded system. The current sensing topology enables multichannel, sub ±1% error, isolated current sensing for high-voltage systems up to 1200-VDC, limited by the DC/DC (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
TSSOP (PW) 16 View options

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