INA225AQDGKRQ1

Product Overview

Category: Integrated Circuit (IC)

Use: The INA225AQDGKRQ1 is a high-precision, low-power, current-shunt monitor IC. It is designed to accurately measure small differential voltages across a shunt resistor and convert them into a proportional current measurement.

Characteristics: - High precision - Low power consumption - Small form factor - Wide input voltage range - Temperature stability

Package: The INA225AQDGKRQ1 is available in a small 8-pin VSSOP package, which allows for easy integration into various electronic systems.

Essence: The essence of the INA225AQDGKRQ1 lies in its ability to provide accurate current measurements in applications where precise monitoring is required.

Packaging/Quantity: The INA225AQDGKRQ1 is typically sold in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Input Common-Mode Voltage Range: -0.3V to +26V
• Output Voltage Range: 0V to Vcc
• Quiescent Current: 60µA (typical)
• Gain Error: ±0.25% (maximum)
• Bandwidth: 200kHz (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The INA225AQDGKRQ1 has the following pin configuration:

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

Functional Features

• High accuracy current measurement
• Low power consumption
• Wide input voltage range
• Built-in gain setting for flexible current range selection
• Temperature stability for reliable operation in various environments

Advantages and Disadvantages

Advantages: - High precision measurements - Low power consumption - Small form factor for easy integration - Wide input voltage range allows for versatile applications - Temperature stability ensures reliable performance

Disadvantages: - Limited output voltage range - Requires external shunt resistor for current measurement

Working Principles

The INA225AQDGKRQ1 operates based on the principle of measuring the voltage drop across a shunt resistor. It amplifies this small differential voltage and converts it into a proportional current measurement. The gain of the amplifier can be set using the SET pin, allowing for flexibility in selecting the desired current range.

Detailed Application Field Plans

The INA225AQDGKRQ1 finds applications in various fields where accurate current monitoring is essential. Some potential application areas include:

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

Detailed and Complete Alternative Models

1. INA226AQDGKRQ1: Similar to INA225AQDGKRQ1 with additional features such as integrated bus voltage measurement.
2. INA219AQDGKRQ1: Current-shunt monitor IC with higher precision and built-in I2C interface for digital communication.
3. INA240AQDGKRQ1: Current-shunt monitor IC with higher common-mode voltage range and lower quiescent current.

These alternative models offer different specifications and features to cater to specific application requirements.

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