Product Overview: INA199B1DCKT from Texas Instruments

The INA199B1DCKT is a precision current-sense amplifier designed by Texas Instruments to offer industry-leading performance for accurate current measurement. This device is part of the INA199 series, which is known for its versatility and reliability in a wide range of applications, including motor control, battery management, overcurrent protection, and power management systems.

The INA199B1DCKT comes in a compact, surface-mount SC70 package, making it an excellent choice for space-constrained applications. It is designed to detect the voltage across shunt resistors in current monitoring setups, amplifying the voltage difference to a level that can be easily read by an analog-to-digital converter (ADC) or other monitoring circuitry.

Key Features:

• Voltage Supply Range: The device operates from a single power supply ranging from 2.7V to 26V, which allows it to be used in various system voltages without the need for additional level shifting or power supplies.
• Common-Mode Range: It boasts a wide common-mode range of -0.3V to 26V, which is maintained independent of the supply voltage. This feature enables the INA199B1DCKT to monitor shunt resistors at either the high side or the low side of the load.
• Accuracy: The amplifier has a gain error of just ±0.5%, ensuring precise current measurement across the entire temperature range of -40°C to 125°C.
• Quiescent Current: It has a low quiescent current, typically 100 µA, which minimizes power consumption and makes it suitable for battery-powered applications.
• Bandwidth: The device features a bandwidth of up to 80 kHz, providing a fast response time suitable for dynamic load conditions.

Applications:

• Server power supplies
• Battery chargers
• Power management systems
• Portable instrumentation
• Automotive and industrial systems

The INA199B1DCKT from Texas Instruments is a robust and precise solution for current-sensing applications that require high accuracy and a wide input common-mode voltage range. Its small form factor combined with high performance and low power consumption makes it an ideal choice for designers looking to enhance system reliability and efficiency.