Product Overview: INA228AIDGST from Texas Instruments

The INA228AIDGST is a high-precision, bidirectional, current-sense amplifier from Texas Instruments, designed to cater to a wide range of applications requiring accurate current measurement. This device is part of the INA228 family and offers a digital interface for reading current, voltage, and power information directly through an I2C or SMBus compatible interface.

Key Features

• High Accuracy: The INA228AIDGST boasts a maximum offset error of ±10 µV and gain error of ±0.1%, ensuring precise measurements for both high-side and low-side current sensing.
• Wide Common-Mode Range: With a common-mode voltage range of -0.3V to +85V, the device is versatile for various systems and can measure across shunts at common-mode voltages far beyond the supply rails.
• Programmable Gain: The amplifier features a programmable gain array, providing gains from 1 to 128 in binary steps, allowing for flexibility in shunt resistor selection and measurement resolution.
• High Bandwidth: A bandwidth of up to 850 kHz enables the INA228AIDGST to be used in fast-changing current measurement scenarios, such as transient events in power management systems.
• Digital Interface: The I2C- and SMBus-compatible interface supports a variety of data rates and provides a direct digital output of the measured values, simplifying integration with microcontrollers and digital systems.

Applications

The INA228AIDGST is suitable for a broad array of applications, including but not limited to:

• Power management in servers and telecom equipment
• Battery chargers and monitoring systems
• Industrial automation and motor control
• Portable instrumentation
• Test and measurement systems

Package and Quality

This device comes in a compact, surface-mount VSSOP-10 package, making it ideal for space-constrained applications. The INA228AIDGST is characterized for operation over the extended industrial temperature range of -40°C to +125°C, ensuring reliable performance in harsh environments. Texas Instruments is known for its commitment to quality, and this product is no exception, meeting stringent industry standards for performance and reliability.