INA2321EA/250G4

Product Overview

Category

The INA2321EA/250G4 belongs to the category of integrated circuits (ICs) specifically designed for current sensing applications.

Use

This product is primarily used for accurate current measurement and monitoring in various electronic systems.

Characteristics

• High precision: The INA2321EA/250G4 offers exceptional accuracy in current sensing, ensuring reliable measurements.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for diverse applications.
• Low offset voltage: The IC has a low offset voltage, minimizing errors in current measurements.
• High common-mode rejection ratio (CMRR): This feature allows the device to reject common-mode noise, enhancing measurement accuracy.
• Low power consumption: The INA2321EA/250G4 operates with low power consumption, making it energy-efficient.

Package

The INA2321EA/250G4 is available in a small outline package (SOP), which provides ease of integration into various circuit designs.

Essence

The essence of the INA2321EA/250G4 lies in its ability to accurately measure and monitor current in electronic systems, enabling precise control and analysis.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each containing a specified quantity of INA2321EA/250G4 ICs.

Specifications

• Supply voltage: 2.7V to 5.5V
• Input common-mode voltage range: -0.3V to Vcc + 0.3V
• Operating temperature range: -40°C to 125°C
• Gain error: ±0.5%
• Offset voltage: ±50µV
• Bandwidth: 200kHz

Detailed Pin Configuration

The INA2321EA/250G4 features the following pin configuration:

1. V+ (Positive supply voltage)
2. V- (Negative supply voltage)
3. IN+ (Positive input terminal for current sensing)
4. IN- (Negative input terminal for current sensing)
5. OUT (Output voltage proportional to the sensed current)
6. REF (Reference voltage for gain setting)

Functional Features

• High accuracy current sensing
• Wide input voltage range
• Low offset voltage and high CMRR for precise measurements
• Integrated overcurrent detection and protection
• Adjustable gain for flexibility in different applications

Advantages and Disadvantages

Advantages

• Accurate and reliable current sensing
• Wide range of input voltages supported
• Low power consumption
• Integrated overcurrent protection enhances system safety
• Adjustable gain allows customization for specific requirements

Disadvantages

• Limited bandwidth compared to some other current sensing ICs
• Higher cost compared to less precise alternatives

Working Principles

The INA2321EA/250G4 utilizes a differential amplifier configuration to measure the voltage drop across a shunt resistor, which is proportional to the current flowing through it. This voltage is then amplified and converted into an output voltage that represents the sensed current.

Detailed Application Field Plans

The INA2321EA/250G4 finds extensive application in various fields, including:

1. Power management systems
2. Battery monitoring and charging circuits
3. Motor control systems
4. Solar energy systems
5. Industrial automation and control

Detailed and Complete Alternative Models

1. INA219: Similar functionality with higher bandwidth and lower cost.
2. ACS712: Hall-effect based current sensor with integrated signal conditioning.
3. MAX4080: Precision current-sense amplifier with wide input voltage range.

These alternative models offer different trade-offs in terms of performance, cost, and features, providing options for various application requirements.

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