Product Overview: INA199C3RSWT from Texas Instruments

The INA199C3RSWT is a precision current-sensing amplifier from Texas Instruments, designed to monitor both shunt voltage drops and bus voltages with high accuracy. This device is part of the INA199 series, which is known for its low offset voltage, making it ideal for a wide range of current measurement applications.

Key Features

• High Accuracy: The INA199C3RSWT offers a high accuracy with a gain error of only ±0.35% (max), ensuring precise current measurements for critical applications.
• Wide Common-Mode Range: Capable of handling common-mode voltages from -0.3V to +26V, this device is versatile and can be used in systems with varying ground potentials.
• Low Offset Voltage: The amplifier features a low offset voltage of ±80 µV (max), which minimizes error in current measurements, especially in low-side current sensing applications.
• High Bandwidth: With a bandwidth of up to 1 MHz, the INA199C3RSWT can accurately track fast-changing currents, making it suitable for dynamic systems.
• Quiescent Current: The device operates with a low quiescent current of 100 µA (typ), which is beneficial for power-sensitive applications.

Applications

The INA199C3RSWT is designed for a variety of applications, including but not limited to:

• Power management in battery-powered devices
• Overcurrent protection circuits
• Automotive battery monitoring
• Portable instrumentation
• Telecommunications equipment

Package and Reliability

Encased in a compact UQFN-10 package, the INA199C3RSWT saves board space and is suitable for space-constrained applications. It operates over a wide temperature range of -40°C to +125°C, ensuring reliable performance in harsh environments. Texas Instruments' commitment to quality means that this current-sense amplifier is designed for long-term stability and reliability.

In summary, the INA199C3RSWT from Texas Instruments is a high-precision, versatile current-sense amplifier that offers designers a reliable solution for accurate current measurement across a broad spectrum of applications. Its compact form factor and robust performance make it an excellent choice for both industrial and consumer electronics.