The automotive qualified INA250-Q1 is a voltage-output, current-sensing amplifier family that integrates an internal precision shunt resistor to enable high-accuracy current measurements at common-mode voltages that may vary from 0 V to 36 V, independent of the supply voltage.
The INA250-Q1 family is available in four output voltage scales: 200 mV/A, 500 mV/A, 800 mV/A, and 2 V/A. This device is fully tested and specified for continuous currents up to 10 amps at the maximum temperature of +125°C. The INA250-Q1 device operates from a single 2.7-V to 36-V supply and draws a maximum of 300 µA of supply current. All INA250-Q1 gain versions are specified over the extended operating temperature range of –40°C to +125°C, and are available in a TSSOP-16 package.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | INA250-Q1 AEC-Q100, 36-V, Bidirectional, Precision Current Sense Amplifier With Integrated Shunt Resistor datasheet (Rev. C) | PDF | HTML | Sep 13, 2023 |
| Application note | Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers | PDF | HTML | Nov 18, 2024 | |
| Application brief | Integrating the Current Sensing Resistor (Rev. D) | PDF | HTML | Apr 7, 2023 | |
| Functional safety information | INA250-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | Mar 23, 2020 | ||
| Application brief | Precision, Low-Side Current Measurement (Rev. B) | Mar 6, 2019 | ||
| Application brief | Benefits of Intergated Low Inductive Shunt for PWM Applications | Jun 17, 2017 | ||
| Design guide | 30-A Range Bidirectional Current Shunt Monitor Design Guide | Jun 30, 2015 |
For additional terms or required resources, click any title below to view the detail page where available.
INA250 is a family of current shunt monitor with integrated shunt. The INA250EVM (INA250AxEVM) is intended to provide basic functional evaluation of INA250A1, INA250A2, INA250A3 and INA250A4 devices in the family. The fixture layout is not intended to be a model for the target circuit, nor is it (...)
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 (...)
This high-side current shunt monitor is used to measure the voltage developed across a current-sensing resistor when current passes through it.
Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)
This verified design can accurately measure current across a range of 30 A on a bus that carries up to 36-V common mode voltage over a range of -40°C to +85°C. This design can measure current from 0 A to 30 A with a grounded reference or -30 A to 0 A with a 16-V reference. The (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| TSSOP (PW) | 16 | Ultra Librarian |
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