INA2181A2IDGST

Product Overview

Category

The INA2181A2IDGST belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for current sensing and monitoring applications.

Characteristics

• High accuracy: The INA2181A2IDGST offers precise current measurement with low offset and gain error.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for various applications.
• Low power consumption: This IC consumes minimal power, making it energy-efficient.
• Small package size: The INA2181A2IDGST comes in a compact package, allowing for space-saving designs.
• High bandwidth: It provides a high bandwidth for accurate current measurements.

Package and Quantity

The INA2181A2IDGST is available in a small outline integrated circuit (SOIC) package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Input Common-Mode Voltage Range: -0.2V to V+ + 0.2V
• Operating Temperature Range: -40°C to +125°C
• Gain Error: ±0.5%
• Offset Voltage: ±100µV
• Bandwidth: 200kHz

Pin Configuration

The INA2181A2IDGST has a total of 8 pins. Here is the detailed pin configuration:

1. V+
2. IN-
3. IN+
4. REF
5. OUT
6. GND
7. NC
8. V-

Functional Features

• Current Sensing: The INA2181A2IDGST accurately measures the current flowing through a circuit.
• Voltage Output: It provides a voltage output proportional to the sensed current.
• Overcurrent Protection: This IC can detect and protect against excessive current levels.
• Low Power Consumption: It consumes minimal power, making it suitable for battery-powered applications.
• High Accuracy: The INA2181A2IDGST offers precise current measurement with low error.

Advantages and Disadvantages

Advantages

• High accuracy and precision in current sensing.
• Wide input voltage range allows for versatile applications.
• Compact package size enables space-saving designs.
• Low power consumption for energy-efficient operation.
• Provides a high bandwidth for accurate current measurements.

Disadvantages

• Limited to current sensing applications.
• Requires external components for proper operation.
• May not be suitable for high-frequency current measurements.

Working Principles

The INA2181A2IDGST operates based on the principle of shunt resistor current sensing. It measures the voltage drop across a shunt resistor placed in series with the load and converts it into a proportional voltage output. This voltage output can then be further processed or used for monitoring purposes.

Application Field Plans

The INA2181A2IDGST finds applications in various fields, including:

1. Power Management Systems: Used for current monitoring in power supplies, battery chargers, and DC-DC converters.
2. Motor Control: Enables precise current sensing in motor control circuits, ensuring efficient operation and protection against overcurrent conditions.
3. Automotive Electronics: Used for current measurement in automotive systems such as electric vehicles, hybrid vehicles, and engine control units.
4. Industrial Automation: Enables accurate current monitoring in industrial automation equipment, ensuring safe and reliable operation.

Alternative Models

Here are some alternative models that offer similar functionality:

1. INA219: Offers higher precision and additional features such as bus voltage measurement.
2. ACS712: Provides a Hall-effect-based current sensing solution with different current ranges.
3. MAX4080: Offers high-side current sensing with integrated amplification and filtering capabilities.

These alternative models can be considered based on specific application requirements and desired features.

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