LM4040DEM3-5.0

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - Low dropout voltage - High accuracy - Low temperature coefficient - Small package size - Wide operating temperature range

Package: SOT-23-3

Essence: The LM4040DEM3-5.0 is a precision voltage reference IC that provides a stable and accurate 5.0V output voltage.

Packaging/Quantity: The LM4040DEM3-5.0 is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Output Voltage: 5.0V
• Initial Accuracy: ±0.1%
• Temperature Coefficient: 20ppm/°C
• Dropout Voltage: 60mV (typical)
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 60µA (typical)

Detailed Pin Configuration

The LM4040DEM3-5.0 has three pins:

1. VOUT: Output pin, connected to the load.
2. GND: Ground pin, connected to the system ground.
3. VIN: Input pin, connected to the input voltage source.

Functional Features

• High accuracy: The LM4040DEM3-5.0 provides a precise 5.0V output voltage with an initial accuracy of ±0.1%.
• Low temperature coefficient: It exhibits a low temperature coefficient of 20ppm/°C, ensuring stability over a wide temperature range.
• Low dropout voltage: With a dropout voltage of only 60mV, it can operate efficiently even when the input voltage is close to the desired output voltage.
• Small package size: The SOT-23-3 package offers a compact footprint, making it suitable for space-constrained applications.
• Wide operating temperature range: The LM4040DEM3-5.0 can operate reliably in temperatures ranging from -40°C to +85°C.

Advantages and Disadvantages

Advantages: - High accuracy and stability - Low dropout voltage - Small package size - Wide operating temperature range

Disadvantages: - Limited output voltage options (only 5.0V)

Working Principles

The LM4040DEM3-5.0 utilizes a bandgap reference circuit to generate a stable 5.0V output voltage. 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 LM4040DEM3-5.0 is commonly used in various electronic systems where a precise and stable 5.0V reference voltage is required. Some typical application fields include:

1. Analog-to-Digital Converters (ADCs)
2. Digital-to-Analog Converters (DACs)
3. Voltage regulators
4. Precision measurement equipment
5. Sensor calibration circuits

Detailed and Complete Alternative Models

1. LM4040AIM3-5.0: Similar specifications and pin configuration, available in SOT-23-3 package.
2. LT1004CZ-5.0: Comparable performance, available in TO-92 package.
3. MAX6190AESA+: Offers higher initial accuracy, available in SOIC-8 package.

These alternative models provide similar functionality and can be considered as substitutes for the LM4040DEM3-5.0 based on specific requirements and availability.

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