LM4040EEM3-2.0

Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - Low voltage reference - Precision output voltage of 2.0V - High accuracy and stability - Low temperature coefficient - Low dropout voltage - Small package size

Package: SOT-23-3

Essence: The LM4040EEM3-2.0 is a precision voltage reference IC that provides a stable and accurate output voltage of 2.0V. It is commonly used in various electronic circuits where a precise voltage reference is required.

Packaging/Quantity: The LM4040EEM3-2.0 is available in a small SOT-23-3 package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Output Voltage: 2.0V
• Initial Accuracy: ±0.1%
• Temperature Coefficient: 50ppm/°C
• Dropout Voltage: 60mV (typical)
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Range: 2.7V to 10V
• Quiescent Current: 60µA (typical)

Pin Configuration

The LM4040EEM3-2.0 has three pins arranged as follows:

```

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| | --| VOUT |-- --| GND |-- --| VIN |-- |_______| ```

Pin Description: - VOUT: Output Voltage - GND: Ground - VIN: Input Voltage

Functional Features

1. Precision Output: The LM4040EEM3-2.0 provides a highly accurate and stable output voltage of 2.0V, making it suitable for applications requiring precise voltage references.

2. Low Dropout Voltage: With a low dropout voltage of only 60mV, the LM4040EEM3-2.0 can operate efficiently even when the input voltage is close to the desired output voltage.

3. Low Temperature Coefficient: The temperature coefficient of the LM4040EEM3-2.0 is 50ppm/°C, ensuring minimal variation in output voltage with temperature changes.

4. Wide Operating Range: It can operate within a wide supply voltage range of 2.7V to 10V, making it compatible with various power sources.

Advantages and Disadvantages

Advantages: - High accuracy and stability - Low temperature coefficient - Small package size - Low dropout voltage

Disadvantages: - Fixed output voltage (2.0V) - Limited current output capability

Working Principles

The LM4040EEM3-2.0 is based on bandgap reference technology. It utilizes the inherent voltage drop across a forward-biased diode junction to generate a stable reference voltage. This voltage is then amplified and regulated to provide a precise output voltage of 2.0V.

Detailed Application Field Plans

The LM4040EEM3-2.0 finds applications in various fields where a stable and accurate voltage reference is required. Some common application areas include:

1. Analog-to-Digital Converters (ADCs): The LM4040EEM3-2.0 can be used as a reference voltage for ADCs to ensure accurate conversion of analog signals.

2. Precision Instrumentation: It is suitable for precision measurement equipment, such as multimeters, oscilloscopes, and data loggers, where precise voltage references are crucial for accurate readings.

3. Voltage Regulators: The LM4040EEM3-2.0 can serve as a stable reference voltage for voltage regulators, ensuring consistent and reliable output voltages.

4. Sensor Calibration: It is used in sensor calibration circuits to provide a known and stable voltage reference for accurate sensor measurements.

Detailed and Complete Alternative Models

1. LM4040AEM3-2.0: Similar to LM4040EEM3-2.0, but available in a different package (SOT-23-5).

2. LM4040CIM3-2.0: Offers the same 2.0V output voltage with improved initial accuracy (±0.05%).

3. LM4120AIM5-2.0: Provides a higher output voltage of 2.048V with similar characteristics and package as LM4040EEM3-2.0.

4. LT1004CZ-2.0: An alternative from a different manufacturer, offering a precision 2.0V voltage reference with excellent long-term stability.

These alternative models can be considered based on specific application requirements or availability.

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