INA240A1PWR

Product Overview

Category: Integrated Circuit (IC)

Use: The INA240A1PWR is a high-precision, low-drift, bidirectional current-sensing amplifier. It is designed for use in applications that require accurate measurement of both positive and negative currents.

Characteristics: - High precision: The INA240A1PWR offers excellent accuracy with a maximum offset voltage of 50µV and a maximum gain error of 0.1%. - Low drift: It has a low temperature drift, ensuring stable performance over a wide range of operating conditions. - Bidirectional sensing: This amplifier can accurately measure both positive and negative currents, making it suitable for applications such as battery monitoring and motor control. - Small package: The INA240A1PWR comes in a small SOT-23 package, allowing for space-efficient designs. - Essence: The essence of the INA240A1PWR lies in its ability to provide precise and reliable current measurements in various applications.

Packaging/Quantity: The INA240A1PWR is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Input Common-Mode Voltage Range: -0.1V to +26V
• Quiescent Current: 60µA (typical)
• Gain Bandwidth Product: 500kHz
• Output Voltage Swing: Rail-to-Rail
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The INA240A1PWR has the following pin configuration:

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| | --| IN+ OUT |-- --| IN- GND |-- --| REF+ V+ |-- --| REF- V- |-- |___________| ```

Functional Features

1. High Accuracy: The INA240A1PWR provides precise current measurements with low offset voltage and gain error.
2. Bidirectional Sensing: It accurately measures both positive and negative currents, making it suitable for applications requiring bi-directional current sensing.
3. Low Drift: The low temperature drift ensures stable performance over a wide range of operating conditions.
4. Rail-to-Rail Output: The amplifier offers a wide output voltage swing, allowing for accurate measurements even at high currents.

Advantages and Disadvantages

Advantages: - High precision and accuracy - Bidirectional current sensing capability - Low temperature drift - Small package size - Wide output voltage swing

Disadvantages: - Limited supply voltage range (2.7V to 5.5V) - Relatively low gain bandwidth product compared to some other amplifiers

Working Principles

The INA240A1PWR operates based on the principle of amplifying the voltage difference across a shunt resistor connected in series with the current path. By measuring this amplified voltage, the current flowing through the shunt resistor can be accurately determined. The amplifier's bidirectional capability allows it to measure both positive and negative currents.

Detailed Application Field Plans

The INA240A1PWR is well-suited for various applications, including but not limited to: 1. Battery Monitoring Systems: Accurate measurement of charging and discharging currents in battery management systems. 2. Motor Control: Precise current sensing in motor control circuits for monitoring and protection purposes. 3. Power Management: Current monitoring in power supplies, DC-DC converters, and voltage regulators. 4. Industrial Automation: Current measurement in industrial automation systems for process control and monitoring.

Alternative Models

For those seeking alternative options, the following models provide similar functionality to the INA240A1PWR: - INA240A2PWR - INA240A3PWR - INA240A4PWR

These models offer comparable performance and can be considered as alternatives based on specific application requirements.

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