INA381A3IDSGR

Product Overview

Category: Integrated Circuit (IC)

Use: The INA381A3IDSGR 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 - Low quiescent current - High common-mode rejection ratio

Package: DSG (PowerPAD™ SOIC-8)

Essence: The INA381A3IDSGR is an essential component for precise current measurement in electronic systems. It enables monitoring and control of current flow, ensuring optimal performance and protection against overcurrent conditions.

Packaging/Quantity: The INA381A3IDSGR is available in tape and reel packaging, with 2500 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Input Common-Mode Voltage Range: -0.2V to +26V
• Quiescent Current: 60µA (typical)
• Gain Bandwidth Product: 500kHz (typical)
• Output Voltage Swing: 0V to Vcc - 1.2V
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The INA381A3IDSGR has the following pin configuration:

1. V+ (Positive Power Supply)
2. V- (Negative Power Supply)
3. OUT (Output)
4. REF (Reference Voltage)
5. IN- (Inverting Input)
6. IN+ (Non-Inverting Input)
7. SET (Gain Setting)
8. NC (No Connection)

Functional Features

• High accuracy current sensing
• Overcurrent detection and protection
• Wide input voltage range for versatile applications
• Low offset voltage for precise measurements
• Low quiescent current for power efficiency
• High common-mode rejection ratio for noise immunity

Advantages and Disadvantages

Advantages: - Accurate and reliable current sensing - Wide input voltage range allows for flexible usage - Low offset voltage ensures precise measurements - Low quiescent current minimizes power consumption - High common-mode rejection ratio reduces noise interference

Disadvantages: - Limited gain bandwidth product may restrict high-frequency applications - Single package option may not suit all design requirements

Working Principles

The INA381A3IDSGR operates based on the principle of measuring the voltage drop across a sense resistor in series with the load current. It amplifies this voltage drop to provide an output proportional to the current flowing through the load. The gain setting pin allows for adjusting the gain of the amplifier according to the specific application requirements.

Detailed Application Field Plans

The INA381A3IDSGR finds applications in various fields, including but not limited to:

1. Power management systems
2. Battery charging and monitoring
3. Motor control systems
4. Industrial automation
5. Solar energy systems
6. Automotive electronics
7. LED lighting control
8. Current monitoring in communication equipment

Detailed and Complete Alternative Models

1. INA180A3IDBVR
2. INA282AIDGKR
3. INA213AIDCKT
4. INA139NA/250
5. INA240AIDGKT

These alternative models offer similar functionality and can be considered as substitutes for the INA381A3IDSGR depending on specific design requirements.

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