LM4040CIM3-8.2

Product Overview

Category

The LM4040CIM3-8.2 belongs to the category of voltage references.

Use

It is commonly used as a precision voltage reference in various electronic circuits.

Characteristics

• High accuracy and stability
• Low temperature coefficient
• Low dropout voltage
• Wide operating temperature range

Package

The LM4040CIM3-8.2 is available in a SOT-23 package.

Essence

This product serves as a reliable and precise voltage reference for electronic systems, ensuring accurate and stable voltage levels.

Packaging/Quantity

The LM4040CIM3-8.2 is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Output Voltage: 8.2V
• Initial Accuracy: ±0.1%
• Temperature Coefficient: 50ppm/°C
• Dropout Voltage: 60mV (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LM4040CIM3-8.2 has three pins:

1. VOUT: Output voltage pin
2. GND: Ground pin
3. VIN: Input voltage pin

Functional Features

• Precise voltage reference for accurate circuit operation
• Stable output voltage over a wide temperature range
• Low dropout voltage minimizes power dissipation
• Excellent line and load regulation characteristics

Advantages

• High accuracy and stability ensure reliable performance
• Low temperature coefficient reduces voltage drift with temperature changes
• Wide operating temperature range allows for use in various environments
• Small package size enables space-saving designs

Disadvantages

• Limited output voltage options restrict certain applications requiring different voltage levels
• Higher cost compared to less precise voltage references

Working Principles

The LM4040CIM3-8.2 utilizes a bandgap voltage reference circuit to generate a precise and stable output voltage. It compensates for temperature variations by employing a proportional-to-absolute-temperature (PTAT) current source and a negative temperature coefficient (NTC) resistor.

Detailed Application Field Plans

The LM4040CIM3-8.2 finds applications in various fields, including:

1. Precision analog circuits
2. Data acquisition systems
3. Industrial control systems
4. Medical devices
5. Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the LM4040CIM3-8.2 include:

1. LM385
2. LT1021
3. REF02
4. MAX6126

These models offer similar functionality and performance characteristics, providing options for different design requirements.

In conclusion, the LM4040CIM3-8.2 is a precision voltage reference with high accuracy, stability, and low temperature coefficient. Its small package size and wide operating temperature range make it suitable for various applications. However, its limited output voltage options and higher cost compared to less precise references should be taken into consideration. Alternative models such as LM385, LT1021, REF02, and MAX6126 offer similar features and can be explored based on specific design needs.