Product Overview: INA185A4IDRLR by Texas Instruments

The INA185A4IDRLR is a precision current-sensing amplifier from Texas Instruments, designed to monitor current in high-performance applications. This device is part of the INA185 family, which are bidirectional, zero-drift, current-sense amplifiers featuring the industry’s highest signal-to-noise ratio and lowest total harmonic distortion. The INA185A4IDRLR is optimized for accuracy and efficiency, making it an ideal choice for a wide range of applications, including motor control, battery management, and power-supply monitoring.

Key Features

• Accuracy: The INA185A4IDRLR offers a low offset voltage of 35 µV (max) and gain error of 0.1% (max), ensuring precise current measurement across the full operating temperature range.
• Wide Common-Mode Range: It operates over a common-mode voltage range from -0.2 V to +26 V, which is independent of the supply voltage, allowing for versatile use in various systems.
• Multiple Gain Options: This product comes with a fixed gain of 200 V/V, providing a high level of amplification suitable for detecting small voltage differences across shunt resistors.
• Low Power Consumption: With a quiescent current of 260 µA (typical), the INA185A4IDRLR is an energy-efficient solution for power-sensitive applications.
• Robust Design: The device is specified for operation from -40°C to +125°C, making it reliable in harsh environments and suitable for industrial and automotive applications.

Applications

• Power management systems
• Battery chargers and monitors
• Overcurrent and undercurrent detection
• Portable instrumentation
• Motor control circuits

Package and Availability

The INA185A4IDRLR comes in a compact 6-pin SOT-23 package, which is ideal for space-constrained applications. This current-sense amplifier is available in reel form for ease of manufacturing and integration into automated production lines.

With its combination of high precision, low power consumption, and robustness, the INA185A4IDRLR by Texas Instruments stands out as a top-tier solution for current sensing in both commercial and industrial applications.