INA284AQDRQ1

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Output Current Shunt Monitor
• Characteristics: High accuracy, low offset voltage, wide common-mode voltage range
• Package: 8-SOIC (Small Outline Integrated Circuit)
• Essence: Monitors current flow in a circuit and provides a voltage output proportional to the current
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +125°C
• Input Offset Voltage: ±100µV (maximum)
• Common-Mode Voltage Range: -0.3V to +26V
• Output Voltage Range: 0V to Vcc - 1.2V
• Gain Error: ±0.25% (maximum)

Detailed Pin Configuration

The INA284AQDRQ1 has the following pin configuration:

1. V+ (Positive Supply Voltage)
2. V- (Negative Supply Voltage)
3. REF (Reference Voltage)
4. OUT (Voltage Output)
5. IN- (Inverting Input)
6. IN+ (Non-Inverting Input)
7. SET (Gain Setting)
8. GND (Ground)

Functional Features

• High accuracy current sensing
• Wide common-mode voltage range allows monitoring of high-side and low-side currents
• Low offset voltage minimizes measurement errors
• Adjustable gain setting for flexibility in different applications
• Fast response time for real-time current monitoring

Advantages

• Accurate current monitoring for precise control and protection of circuits
• Wide common-mode voltage range enables versatile usage in various systems
• Low offset voltage ensures accurate measurements even at low currents
• Adjustable gain setting allows customization for different current ranges
• Fast response time enables real-time monitoring and quick fault detection

Disadvantages

• Limited output voltage range may restrict certain applications requiring higher output voltages
• Requires external components for proper operation, increasing complexity in circuit design
• Sensitive to noise and interference, necessitating careful layout and shielding techniques

Working Principles

The INA284AQDRQ1 is a voltage output current shunt monitor. It utilizes a precision amplifier to measure the voltage drop across a shunt resistor inserted in series with the load current. The voltage drop is then amplified and converted into a proportional voltage output. By monitoring this voltage output, the current flowing through the circuit can be accurately determined.

Detailed Application Field Plans

The INA284AQDRQ1 finds applications in various fields, including:

1. Power management systems: Monitoring current flow in power supplies, battery chargers, and DC-DC converters.
2. Motor control: Current sensing in motor drives, servo systems, and robotics.
3. Automotive electronics: Current monitoring in automotive powertrain, lighting systems, and battery management.
4. Industrial automation: Current measurement in industrial machinery, process control, and instrumentation.
5. Renewable energy systems: Current monitoring in solar inverters, wind turbines, and energy storage systems.

Detailed and Complete Alternative Models

1. INA282AQDRQ1: Similar specifications and features, but with a smaller package (6-SOIC).
2. INA286AQDRQ1: Higher accuracy and lower offset voltage, suitable for more precise current measurements.
3. INA290AQDRQ1: Lower supply voltage range and smaller package, ideal for low-power applications.
4. INA322AQDRQ1: Triple-channel current shunt monitor, allowing simultaneous monitoring of multiple currents.

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