INA208AIPWR

Product Overview

Category: Integrated Circuit (IC)

Use: The INA208AIPWR is a high-precision, low-power, bidirectional current-sense amplifier. It is specifically designed for use in applications where accurate measurement of current is required.

Characteristics: - High precision: The INA208AIPWR offers excellent accuracy with a maximum offset voltage of 50µV and a gain error of only 0.1%. - Low power consumption: With a supply voltage range of 2.7V to 5.5V, this IC consumes very low power, making it suitable for battery-powered applications. - Bidirectional current sensing: The device can measure both positive and negative currents accurately. - Wide common-mode voltage range: The INA208AIPWR can operate with a common-mode voltage range from -16V to +80V, allowing it to be used in various industrial applications. - Small package: This IC comes in a small SOT-23 package, which makes it suitable for space-constrained designs.

Package and Quantity: The INA208AIPWR is available in a surface-mount package (SOT-23) and is typically sold in reels of 3000 units.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Common-Mode Voltage Range: -16V to +80V
• Offset Voltage: 50µV (maximum)
• Gain Error: 0.1% (maximum)
• Bandwidth: 200kHz
• Quiescent Current: 60µA (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The INA208AIPWR has the following pin configuration:

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Functional Features

1. High Accuracy: The INA208AIPWR provides precise current measurement with low offset voltage and gain error.
2. Bidirectional Current Sensing: It can accurately measure both positive and negative currents, making it suitable for applications such as battery monitoring and motor control.
3. Wide Common-Mode Voltage Range: The IC can handle a wide range of common-mode voltages, allowing it to be used in various industrial applications.
4. Low Power Consumption: With its low quiescent current, the INA208AIPWR is ideal for power-sensitive designs.
5. Small Package: The SOT-23 package enables space-saving integration into compact electronic devices.

Advantages and Disadvantages

Advantages: - High precision and accuracy - Bidirectional current sensing capability - Wide common-mode voltage range - Low power consumption - Compact package size

Disadvantages: - Limited bandwidth (200kHz) - Requires external components for complete circuit implementation

Working Principles

The INA208AIPWR operates based on the principle of measuring the voltage drop across a shunt resistor connected in series with the current path. It amplifies this voltage drop and provides an output proportional to the current being measured. The device utilizes a differential amplifier configuration to achieve high accuracy and bidirectional current sensing.

Application Field Plans

The INA208AIPWR finds application in various fields, including but not limited to: 1. Battery monitoring systems 2. Motor control and drive systems 3. Power management in industrial equipment 4. Solar power systems 5. Automotive electronics

Alternative Models

1. INA219: This IC offers similar functionality with a higher bandwidth of 1MHz.
2. INA226: Provides additional features such as integrated voltage measurement and higher accuracy.
3. MAX4080: A comparable current-sense amplifier with a wider supply voltage range.

These alternative models can be considered based on specific application requirements and design constraints.

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