Texas Instruments

INA149AIDR

The INA149AIDR is a high-side current shunt monitor IC from Texas Instruments. It is designed to measure the current flowing through a high-side shunt resistor with high accuracy and ease of use. The INA149AIDR is available in a small 8-pin SOIC package and is suitable for a wide range of applications.

Description:

The INA149AIDR is a precision current shunt monitor that can measure both the current flowing through a high-side shunt resistor and the voltage across the resistor. It features a low-drift, low-offset amplifier with a gain of 200V/V, which allows for accurate current measurements even with small shunt resistor values. The device also includes an integrated 12-bit ADC for easy digital interfacing and a programmable alert output that can be used to signal when the current exceeds a certain threshold.

Features:

• High accuracy and low drift
• Wide input voltage range (2.7V to 5.5V)
• Programmable alert output
• 12-bit ADC with I2C interface
• Small 8-pin SOIC package

Applications:

The INA149AIDR is suitable for a wide range of applications that require precise current monitoring, including:

1. Battery monitoring systems
2. Power supplies and energy harvesting systems
3. Motor control and protection circuits
4. Lighting control systems
5. Electric vehicle charging systems
6. Renewable energy systems
7. Medical equipment

In summary, the INA149AIDR is a high-performance current shunt monitor IC that offers high accuracy, low drift, and easy digital interfacing. It is suitable for a wide range of applications where precise current monitoring is required.