LM4040AEX3-2.5+T

Product Overview

Category

The LM4040AEX3-2.5+T belongs to the category of precision voltage references.

Use

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

Characteristics

• High accuracy and stability
• Low temperature coefficient
• Wide operating temperature range
• Low power consumption

Package

The LM4040AEX3-2.5+T is available in a small SOT-23 package, which is suitable for surface mount applications.

Essence

This product provides a precise and stable voltage reference, ensuring accurate performance of electronic devices.

Packaging/Quantity

The LM4040AEX3-2.5+T is typically packaged in reels containing 3000 units.

Specifications

• Output Voltage: 2.5V
• Initial Accuracy: ±0.1%
• Temperature Coefficient: 50ppm/°C
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Range: 2.7V to 10V
• Quiescent Current: 60µA

Pin Configuration

The LM4040AEX3-2.5+T has three pins:

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

Functional Features

• Precise voltage reference with low initial accuracy and temperature coefficient
• Stable output voltage over a wide temperature range
• Low power consumption for energy-efficient designs
• Small form factor for space-constrained applications
• Easy integration into surface mount PCB designs

Advantages

• High accuracy ensures reliable performance of electronic circuits
• Low temperature coefficient minimizes voltage drift with temperature changes
• Wide operating temperature range allows usage in extreme environments
• Low power consumption prolongs battery life in portable devices
• Small package size enables compact and lightweight designs

Disadvantages

• Limited output voltage options (only 2.5V in this case)
• Not suitable for applications requiring higher output voltages

Working Principles

The LM4040AEX3-2.5+T utilizes a bandgap reference circuit to generate a stable voltage reference. It compensates for temperature variations by employing a proportional-to-absolute-temperature (PTAT) current source and a negative temperature coefficient (NTC) resistor. This ensures that the output voltage remains constant over a wide temperature range.

Detailed Application Field Plans

The LM4040AEX3-2.5+T finds application in various fields, including:

1. Precision analog circuits
2. Data acquisition systems
3. Industrial control systems
4. Portable electronic devices
5. Medical equipment
6. Automotive electronics
7. Power management circuits

Its stable and accurate voltage reference is crucial for maintaining precise measurements, reliable operation, and optimal performance in these applications.

Detailed and Complete Alternative Models

Some alternative models to the LM4040AEX3-2.5+T include:

1. LM4040BEX3-2.5+T: Similar specifications but with a different package type (SOT-23)
2. LM4040CIZ2.5: Higher accuracy and lower temperature coefficient, available in a TO-92 package
3. LT1004CZ-2.5: Ultra-high precision voltage reference with better initial accuracy and temperature coefficient, available in a TO-92 package

These alternative models provide options for designers based on specific requirements and preferences.

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