INA180A3IDBVR

The INA180A3IDBVR is a precision current sense amplifier manufactured by Texas Instruments. It is designed to provide accurate current sensing in a variety of applications, including battery management systems, motor control, and power monitoring. Here’s a detailed description of its key features and specifications:

Package and Dimensions

• Package Type: The INA180A3IDBVR comes in a small, surface-mount package known as the SOT-23-5. This compact form factor is ideal for space-constrained applications.
• Dimensions: The SOT-23-5 package typically measures approximately 2.9 mm x 2.8 mm x 1.1 mm, making it suitable for integration into small electronic devices.

Electrical Characteristics

• Supply Voltage: The device operates over a wide supply voltage range, typically from 2.7 V to 5.5 V, allowing it to be used in various power supply environments.
• Input Common-Mode Voltage Range: The INA180A3IDBVR features a common-mode voltage range that extends from -0.1 V to V+ - 0.1 V, enabling it to accurately sense current in both high-side and low-side configurations.
• Gain: The amplifier has a fixed gain of 100 V/V, which allows for a significant amplification of the voltage drop across the shunt resistor used for current sensing.
• Input Offset Voltage: It boasts a low input offset voltage, typically around 50 µV, which contributes to its high accuracy in current measurement.
• Bandwidth: The device has a bandwidth of approximately 1 MHz, making it suitable for fast transient current measurements.

Performance

• Low Noise: The INA180A3IDBVR is designed to minimize noise, which is crucial for accurate current sensing, especially in low-current applications.
• Temperature Drift: The device exhibits low temperature drift characteristics, ensuring stable performance across a range of operating temperatures.
• Output Voltage Range: The output voltage can swing close to the supply rails, providing flexibility in interfacing with various analog-to-digital converters (ADCs) or microcontrollers.

Applications

• Battery Management: Ideal for monitoring battery charge and discharge currents in portable devices and electric vehicles.
• Motor Control: Used in motor drive applications to monitor current for feedback control.
• Power Monitoring: Suitable for energy metering and power management systems to provide real-time current measurements.

Additional Features

• Protection Features: The INA180A3IDBVR includes built-in protection against overvoltage and reverse polarity, enhancing its reliability in various applications.
• Temperature Range: It operates effectively over a wide temperature range, typically from -40°C to +125°C, making it suitable for industrial and automotive applications.

In summary, the INA180A3IDBVR from Texas Instruments is a highly versatile and precise current sense amplifier that combines a compact design with excellent electrical performance, making it an ideal choice for a wide range of current sensing applications.