The INA190A3IDCKR from Texas Instruments is a high-precision, current-sense amplifier that offers industry-leading performance for monitoring current in precision applications. This device is part of the INA190 series, which are bidirectional, zero-drift, current sense amplifiers that use the Hall effect to accurately measure current across shunt resistors in a variety of systems.

Key Features

• High Accuracy: The INA190A3IDCKR provides a high accuracy with a low offset voltage (±25 µV max) and zero drift (±0.1 µV/°C max), ensuring precise current measurement across the full operating temperature range.
• Wide Common-Mode Range: This device is capable of measuring differential voltage signals on common-mode voltages that range from -0.2 V to +26 V, independent of the supply voltage.
• Multiple Gain Options: The INA190A3 variant offers a gain of 200 V/V, which is suitable for various applications requiring different sensitivity levels.
• Low Power Consumption: It features a quiescent current of only 260 µA, which is ideal for power-sensitive applications.
• Wide Supply Range: The amplifier operates over a supply range of 2.7 V to 5.5 V, allowing for flexible integration into various circuit designs.
• Small Package Size: The INA190A3IDCKR comes in an SC70 package, which is highly compact and suitable for space-constrained applications.

Applications

The INA190A3IDCKR is widely used in a variety of applications where precise current measurement is critical. These include:

• Portable and battery-powered equipment
• Power management systems
• Overcurrent protection circuits
• Battery chargers
• Automotive systems
• Telecommunications equipment

With its high accuracy, low power consumption, and compact form factor, the INA190A3IDCKR is an excellent choice for engineers and designers looking to improve the safety, efficiency, and reliability of their electronic systems.