LM4040D20ILP

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - Low dropout voltage - High accuracy - Low temperature coefficient - Low output noise - Wide operating temperature range

Package: SOT-23-3

Essence: LM4040D20ILP is a precision voltage reference IC that provides a stable and accurate voltage output.

Packaging/Quantity: The LM4040D20ILP is available in a SOT-23-3 package. It is typically sold in reels of 3000 units.

Specifications

• Output Voltage: 2.048V
• Initial Accuracy: ±0.1%
• Temperature Coefficient: 50ppm/°C
• Dropout Voltage: 60mV at 10mA
• Operating Temperature Range: -40°C to +85°C
• Output Noise Voltage: 35µVrms (10Hz to 10kHz)
• Quiescent Current: 60µA

Detailed Pin Configuration

The LM4040D20ILP has three pins:

1. VOUT: Output pin, provides the stable 2.048V reference voltage.
2. GND: Ground pin, connected to the system ground.
3. VIN: Input pin, connected to the supply voltage.

Functional Features

• High accuracy: The LM4040D20ILP offers an initial accuracy of ±0.1%, ensuring precise voltage references.
• Low temperature coefficient: With a temperature coefficient of 50ppm/°C, the output voltage remains stable over a wide temperature range.
• Low dropout voltage: The low dropout voltage of 60mV at 10mA allows for efficient operation even with low input voltages.
• Low output noise: The LM4040D20ILP has low output noise voltage, minimizing interference in sensitive applications.
• Wide operating temperature range: It can operate reliably in temperatures ranging from -40°C to +85°C.

Advantages and Disadvantages

Advantages: - High accuracy and stability - Low dropout voltage - Low output noise - Wide operating temperature range

Disadvantages: - Limited output voltage options (only 2.048V)

Working Principles

The LM4040D20ILP utilizes a bandgap reference circuit to generate a stable voltage output. It compensates for temperature variations by using 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 LM4040D20ILP is commonly used in various applications, including: 1. Precision analog-to-digital converters (ADCs) 2. Digital-to-analog converters (DACs) 3. Voltage regulators 4. Battery-powered devices 5. Industrial control systems 6. Test and measurement equipment

Detailed and Complete Alternative Models

Some alternative models to LM4040D20ILP include: 1. LM4040AIM3-2.5/NOPB: Output voltage of 2.5V, SOT-23-3 package. 2. LT1004CZ-2.5#PBF: Output voltage of 2.5V, TO-92 package. 3. MAX6126AASA25+: Output voltage of 2.5V, SOT-23-8 package. 4. REF102CU: Output voltage of 2.048V, SOIC-8 package.

These alternative models offer similar functionality and can be used as replacements based on specific requirements.

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