Product Overview: INA250A4PWR by Texas Instruments

The INA250A4PWR is a precision current-sensing amplifier from Texas Instruments (TI), designed for a wide range of applications that require accurate, real-time current monitoring. This high-performance component integrates an industry-leading current-sensing amplifier with an internal precision shunt resistor, providing a comprehensive current-sensing solution in a compact, power-efficient package.

Key Features

• Integrated Precision Shunt Resistor: The INA250A4PWR features an internal 2 mΩ precision shunt resistor that offers a low insertion loss, enabling high-accuracy current measurements over a wide current range.
• High Accuracy: With a gain error of only ±0.1% (max) and a low offset voltage of 100 µV (max), this device ensures precise current measurements, making it ideal for critical applications where accuracy is paramount.
• Wide Common-Mode Range: The device operates over a common-mode voltage range of -0.2 V to +36 V, which allows for versatile use in systems with varying supply voltages and in applications that experience common-mode voltage swings, such as motor control or battery monitoring.
• High Bandwidth: Offering a bandwidth of up to 1 MHz, the INA250A4PWR is capable of capturing fast transient events, thus suitable for high-speed applications.
• Output Voltage Range: The output of the INA250A4PWR directly interfaces with any typical analog-to-digital converter (ADC) with a 3.3 V to 5 V supply, providing a voltage output that scales with the measured current.
• Thermal Performance: Housed in a TSSOP-16 package, the INA250A4PWR is optimized for thermal performance, ensuring reliability and stability across various temperature ranges.

Applications

• Power management systems
• Battery chargers and monitors
• Motor control
• Overcurrent protection
• Portable instrumentation
• Test and measurement systems

As a versatile and reliable component from Texas Instruments, the INA250A4PWR is an excellent choice for engineers and designers looking to enhance system accuracy, efficiency, and reliability in current-sensing applications. Its integration of a precision shunt resistor with a high-performance amplifier simplifies design, reduces external component count, and accelerates time to market for a wide array of products.