INA300AIDGST

Product Overview

Category: Integrated Circuit (IC)

Use: The INA300AIDGST is a high-side current sense amplifier designed for precision current measurement in various applications. It provides accurate and reliable current sensing capabilities.

Characteristics: - High accuracy - Wide input voltage range - Low offset voltage - High common-mode rejection ratio - Low quiescent current

Package: The INA300AIDGST is available in a small SOT-23 package, which allows for easy integration into compact electronic systems.

Essence: The essence of the INA300AIDGST lies in its ability to accurately measure current in high-side applications, providing valuable information for system monitoring and control.

Packaging/Quantity: The INA300AIDGST is typically sold in reels containing 2500 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 18V
• Input Common-Mode Voltage Range: -0.3V to V+ + 0.3V
• Quiescent Current: 60µA (typical)
• Gain Bandwidth Product: 500kHz (typical)
• Offset Voltage: 100µV (maximum)
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The INA300AIDGST features the following pin configuration:

1. V+ (Positive Supply Voltage)
2. IN+ (Positive Current Sense Input)
3. IN- (Negative Current Sense Input)
4. REF (Reference Voltage)
5. OUT (Amplifier Output)
6. GND (Ground)

Functional Features

• High accuracy current sensing
• Overcurrent detection and protection
• Adjustable gain for different current ranges
• Fast response time
• Wide operating voltage range
• Low power consumption

Advantages and Disadvantages

Advantages: - High accuracy measurement - Wide input voltage range - Low power consumption - Small package size for easy integration - Overcurrent protection enhances system safety

Disadvantages: - Limited to high-side current sensing applications - Requires external components for proper operation - Relatively higher cost compared to some alternatives

Working Principles

The INA300AIDGST operates based on the principle of measuring the voltage drop across a shunt resistor connected in series with the load. It amplifies this voltage drop and provides an output proportional to the current flowing through the load. By accurately measuring this amplified voltage, the current can be determined.

Detailed Application Field Plans

The INA300AIDGST finds applications in various fields where precise current measurement is required. Some of the potential application areas include:

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

Detailed and Complete Alternative Models

1. INA219: Similar to the INA300AIDGST, but with additional features such as bus voltage measurement.
2. MAX4080S: Offers similar functionality with lower quiescent current and wider supply voltage range.
3. ACS712: Provides galvanic isolation and bidirectional current sensing capabilities.

These alternative models offer different trade-offs in terms of specifications, features, and pricing, allowing users to choose the most suitable option for their specific requirements.

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