INA202AIDRG4

Product Overview

Category: Integrated Circuit (IC)

Use: The INA202AIDRG4 is a high-precision, low-power, bidirectional current-sensing amplifier. It is specifically designed for use in applications that require accurate measurement of bidirectional currents.

Characteristics: - High precision: The INA202AIDRG4 offers excellent accuracy in measuring both positive and negative currents. - Low power consumption: It operates with low power requirements, making it suitable for battery-powered applications. - Bidirectional current sensing: The amplifier can accurately measure currents flowing in both directions. - Wide input voltage range: It can handle a wide range of input voltages, allowing for versatile usage. - Temperature stability: The INA202AIDRG4 maintains its accuracy over a wide temperature range.

Package: The INA202AIDRG4 comes in a small outline package (SOIC) with eight pins.

Essence: This IC serves as a crucial component in systems that require precise measurement of bidirectional currents. It enables accurate monitoring and control of current flow in various applications.

Packaging/Quantity: The INA202AIDRG4 is typically sold in reels containing 2500 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Input Common-Mode Voltage Range: -0.1V to +26V
• Output Voltage Swing: Rail-to-Rail
• Gain Error: ±0.25%
• Bandwidth: 200kHz
• Quiescent Current: 60µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The INA202AIDRG4 has the following pin configuration:

```

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| | --| V+ OUT |-- --| V- REF |-- --| IN+ GND |-- --| IN- SET |-- --| RG NC |-- --| FB NC |-- --| NC VCC |-- |___________| ```

Functional Features

1. High Accuracy: The INA202AIDRG4 provides precise current measurement with a low gain error, ensuring accurate monitoring of bidirectional currents.
2. Wide Input Voltage Range: It can handle a wide range of input voltages, allowing for versatile usage in various applications.
3. Low Power Consumption: The IC operates with low power requirements, making it suitable for battery-powered devices.
4. Rail-to-Rail Output Swing: The output voltage swing covers the entire supply voltage range, maximizing the dynamic range of the measured current.
5. Temperature Stability: The INA202AIDRG4 maintains its accuracy over a wide temperature range, ensuring reliable performance in different environments.

Advantages and Disadvantages

Advantages: - High precision current sensing - Wide input voltage range - Low power consumption - Rail-to-rail output swing - Temperature stability

Disadvantages: - Limited bandwidth (200kHz) - Requires external resistors for gain setting

Working Principles

The INA202AIDRG4 utilizes a differential amplifier configuration to accurately measure bidirectional currents. It amplifies the voltage difference between the IN+ and IN- pins, which are connected to a shunt resistor in series with the current path. The amplified voltage is then converted into a proportional output current using an internal reference voltage and feedback resistor.

Application Field Plans

The INA202AIDRG4 finds application in various fields, including but not limited to: 1. Battery management systems 2. Motor control systems 3. Power monitoring and protection systems 4. Solar energy systems 5. Industrial automation

Alternative Models

1. INA202AIDGKT: Similar to INA202AIDRG4, but comes in a smaller SOT-23 package.
2. INA203AIDR: Offers higher bandwidth (500kHz) and lower gain error.
3. INA204AIDR: Provides higher precision with lower gain error and lower offset voltage.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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