INA190A1IRSWT

The INA190A1IRSWT is a precision current sense amplifier manufactured by Texas Instruments. It is designed to provide accurate current measurements in a variety of applications, including battery management systems, power monitoring, and motor control. Here’s a detailed description of its key features and specifications:

General Overview:

• Type: Current Sense Amplifier
• Manufacturer: Texas Instruments
• Package: The INA190A1IRSWT comes in a small, surface-mount package (SOT-23), which is ideal for space-constrained applications.

Key Features:

1. High Precision: The INA190A1 offers a high common-mode voltage range, allowing it to accurately measure current in high-side configurations. This is crucial for applications where the load is connected to the positive supply rail.

2. Low Offset Voltage: The device features a low input offset voltage, which enhances measurement accuracy and reduces errors in current sensing applications.

3. Wide Supply Voltage Range: It operates over a wide supply voltage range, typically from 2.7V to 5.5V, making it versatile for various power supply configurations.

4. Gain Configuration: The INA190A1 has a fixed gain of 100 V/V, which simplifies design considerations and allows for straightforward integration into existing circuits.

5. Low Power Consumption: The amplifier is designed for low power operation, making it suitable for battery-powered devices and applications where energy efficiency is critical.

6. High Bandwidth: With a bandwidth that supports fast transient response, the INA190A1 can accurately track rapidly changing current levels, which is essential in dynamic load conditions.

7. Thermal Performance: The device is designed to operate effectively across a wide temperature range, ensuring reliable performance in various environmental conditions.

Electrical Characteristics:

• Input Common-Mode Voltage Range: The amplifier can handle a wide common-mode voltage, typically from -0.1V to 26V, allowing it to be used in high-side sensing applications.
• Input Offset Voltage: Typically around 50 µV, which contributes to its high accuracy.
• Supply Current: The device consumes a low quiescent current, typically around 50 µA, which is beneficial for low-power applications.

Applications:

• Battery Management Systems: Used for monitoring battery charge and discharge currents.
• Power Monitoring: Ideal for applications that require precise current measurements for power management.
• Motor Control: Useful in applications where current feedback is necessary for controlling motor performance.

Conclusion:

The INA190A1IRSWT from Texas Instruments is a highly precise, low-power current sense amplifier that is well-suited for a variety of applications requiring accurate current measurement. Its compact size, high performance, and ease of integration make it a popular choice among engineers designing modern electronic systems.