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INA228AQDGSRQ1 The Texas Instruments INA228AQDGSRQ1 is an ultra-precise, 20-bit digital power monitor designed for automotive applications. It features a wide common-mode voltage range and high accuracy for current, voltage, power, energy, and charge monitoring.
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INA228AQDGSRQ1

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments INA228AQDGSRQ1 is an ultra-precise, 20-bit digital power monitor designed for automotive applications. It features a wide common-mode voltage range and high accuracy for current, voltage, power, energy, and charge monitoring.
✓ Total Stock: 2,490 pcs
$ Price Range: $2.39

INA228AQDGSRQ1 Available from 1 distributor

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✓ Non-Authorised
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PROSOFT ELECTRONICS ✓
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2,490 pcs
On Request
2490 pcs On Request 1 On Request On Request 25+ On Request On Request
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INA228AQDGSRQ1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Applications
Automotive Grade
Current
Mounting Type
Operating Temperature
Supplier Device Package
Supplier Package
Supply Voltage
Voltage
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INA228AQDGSRQ1 Description

Short technical summary and product information.

The INA228-Q1 from Texas Instruments is an AEC-Q100 qualified, 20-bit delta-sigma ADC digital power monitor. It is specifically engineered for precise current-sensing applications, supporting a wide common-mode voltage range from -0.3 V to +85 V. This device accurately reports current, bus voltage, temperature, power, energy, and charge accumulation.

 

Key electrical specifications include a high-resolution 20-bit ADC, low offset voltage (±1 µV max), low offset drift (±0.01 µV/°C max), and a gain error of ±0.05% maximum. The power monitoring accuracy is 0.5% full scale over the operating temperature range of -40°C to +125°C. It offers a fast alert response of 75 μs and operates from a 2.7-V to 5.5-V supply.

 

Designed for automotive battery management systems, EV/HEV sensing, DC/DC converters, and ADAS domain controllers, the INA228-Q1 is functional safety-capable. It communicates via a high-speed I2C interface with 16 pin-selectable addresses. The device is available in a 10-VSSOP package, suitable for surface mount applications.

 

Programmable features include conversion time and sample averaging, which help in reducing noise. The integrated temperature sensor provides die temperature measurement with ±1°C accuracy at 25°C, useful for monitoring system ambient temperature.

INA228AQDGSRQ1 Quick Information

Product Type: Digital Power Monitor
Canonical Name: INA228-Q1 AEC-Q100, 85-V, 20-Bit, Ultra-Precise Power/Energy/Charge Monitor With I2C Interface
Subcategory: Power Supply Controllers, Monitors

INA228AQDGSRQ1 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

INA228AQDGSRQ1 Estimated Pricing

Qty Low High
1+ $2.39 $2.39

Estimated market price range - modelled values for guidance only, not live distributor offers.

INA228AQDGSRQ1 Features

  • AEC-Q100 qualified for automotive use.
  • 20-bit delta-sigma ADC for high resolution.
  • Wide -0.3V to 85V common-mode range.
  • High accuracy for power monitoring.
  • Functional safety-capable design.

INA228AQDGSRQ1 Applications

  • Automotive battery management systems.
  • EV and HEV current sensing.
  • DC/DC converters and power inverters.
  • ADAS domain controllers.

INA228AQDGSRQ1 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the INA228AQDGSRQ1?

The operating voltage range is 2.7 V to 5.5 V.

What is the operating temperature range?

The operating temperature range is –40°C to +125°C.

What package does the INA228AQDGSRQ1 come in?

It comes in a 10-VSSOP package (also 10-TFSOP, 10-MSOP).

What is the ADC resolution of this device?

The ADC resolution is 20 bits.

What is the I2C interface speed?

The I2C interface speed is 2.94 MHz.

Is the INA228AQDGSRQ1 AEC-Q100 qualified?

Yes, it is AEC-Q100 qualified for automotive applications.

What is the common-mode voltage range?

The common-mode voltage range is –0.3 V to +85 V.

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