Code example or demo
Data sheet
INA220-Q1
- Qualified for Automotive Applications
- AEC-Q100 Qualified with the following results:
- Device Temperature Grade 1: –40°C to +125°C
Ambient Operating Temperature Range - Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C3B
- Device Temperature Grade 1: –40°C to +125°C
- High- or Low-Side Sensing
- Senses Bus Voltages from 0 V to 26 V
- Reports Current, Voltage, and Power
- 16 Programmable Addresses
- High Accuracy: 0.5% (Maximum) Over
Temperature - User-Programmable Calibration
- Fast (2.56-MHz) I2C- or SMBUS-Compatible
Interface - VSSOP-10 Package
The INA220-Q1 device is a current shunt and power monitor with an I2C- or SMBUS-compatible interface. The INA220-Q1 device monitors both shunt drop and supply voltage. A programmable calibration value, combined with an internal multiplier, enables direct readouts in amperes. An additional multiplying register calculates power in watts. The I2C- or SMBUS-compatible interface features 16 programmable addresses. The separate shunt input on the INA220-Q1 device allows it to be used in systems with low-side sensing.
The INA220-Q1 device senses across shunts on buses that can vary from 0 to 26 V, useful for low-side sensing or CPU power supplies. The device uses a single 3- to 5.5-V supply, drawing a maximum of 1 mA of supply current. The INA220-Q1 device operates from –40°C to +125°C.
Technical documentation
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View all 10 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | INA220-Q1 Automotive Grade, 26-V, Bi-Directional, Zero-Drift, Low- or High-Side, I2C-Compatible Current/Power Monitor datasheet (Rev. B) | PDF | HTML | 24 Mar 2016 |
| EVM User's guide | INA220EVM Rev A Model User's Guide and Software Tutorial (Rev. D) | 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 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 | |
| Application note | Getting Started with Digital Power Monitors (Rev. A) | PDF | HTML | 02 Sep 2021 | |
| Application note | Energy and Power Monitoring with Digital Current Sensors | 25 May 2017 | ||
| Application note | Understanding the I2C Bus | PDF | HTML | 30 Jun 2015 | |
| More literature | INA220EVM (Quick-Start Guide Video) | 14 Aug 2009 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
INA220EVM — INA220 evaluation module for 26-V, 12-bit, I²C output digital power monitor
The INA220 evaluation module (EVM) is a platform to evaluate the main features and performance of the INA220. The EVM supports current measurements up to 10-A and comes with graphical user interface (GUI) support to read and write to device registers.
GUI for evaluation module (EVM)
SBOC297 — INA220EVM Rev A Software
Supported products & hardware
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
Products
Analog current-sense amplifiers
Analog current-sense amplifiers with integrated shunt resistor
Digital power monitors
Calculation tool
SBOR021 — Power Monitor Tool
Supported products & hardware
Products
Digital power monitors
Digital power monitors with integrated shunt resistor
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 (...)
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
| Package | Pins | Download |
|---|---|---|
| VSSOP (DGS) | 10 | View options |
Ordering & quality
Information included:
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- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
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