LM4040AEM3-2.5+T

Product Overview

Category

The LM4040AEM3-2.5+T belongs to the category of voltage references.

Use

It is commonly used as a precision shunt regulator in various electronic circuits.

Characteristics

• High accuracy and stability
• Low temperature coefficient
• Wide operating voltage range
• Low quiescent current consumption

Package

The LM4040AEM3-2.5+T is available in a small SOT-23 surface mount package.

Essence

This product serves as a precise voltage reference, providing a stable output voltage for accurate circuit operation.

Packaging/Quantity

The LM4040AEM3-2.5+T is typically packaged in reels, containing a quantity of 3000 units per reel.

Specifications

• Output Voltage: 2.5V
• Initial Accuracy: ±0.1%
• Temperature Coefficient: 20ppm/°C
• Operating Voltage Range: 1.7V to 10V
• Quiescent Current: 60µA (typical)

Detailed Pin Configuration

The LM4040AEM3-2.5+T has three pins:

1. VOUT: Output pin, provides a stable 2.5V reference voltage.
2. GND: Ground pin, connected to the common ground of the circuit.
3. VIN: Input pin, receives the input voltage for regulation.

Functional Features

• Precise voltage reference: The LM4040AEM3-2.5+T ensures a highly accurate and stable output voltage of 2.5V.
• Low temperature coefficient: It exhibits a low temperature coefficient, minimizing voltage variations with temperature changes.
• Wide operating voltage range: The device can operate within a wide voltage range from 1.7V to 10V, making it suitable for various applications.
• Low quiescent current consumption: With a low quiescent current of 60µA, it helps conserve power in battery-powered systems.

Advantages and Disadvantages

Advantages

• High accuracy and stability ensure precise circuit operation.
• Low temperature coefficient minimizes voltage drift with temperature changes.
• Wide operating voltage range allows for versatile application possibilities.
• Low quiescent current consumption helps extend battery life in portable devices.

Disadvantages

• Limited output voltage options, only providing a fixed 2.5V reference.
• SOT-23 package may not be suitable for all circuit designs or assembly processes.

Working Principles

The LM4040AEM3-2.5+T utilizes bandgap voltage reference technology to generate a stable 2.5V output voltage. It employs a precision internal voltage divider and feedback circuitry to regulate the output voltage regardless of input voltage variations or load conditions. The device compensates for temperature changes through its low temperature coefficient design, ensuring accurate voltage output across a wide temperature range.

Detailed Application Field Plans

The LM4040AEM3-2.5+T finds applications in various fields, including:

1. Precision analog circuits: It serves as a voltage reference for ADCs, DACs, and other precision analog components, ensuring accurate signal conversion.
2. Power management systems: The LM4040AEM3-2.5+T provides a stable reference voltage for voltage regulators, ensuring consistent power supply to sensitive components.
3. Sensor calibration: It is used in sensor calibration circuits to provide a precise reference voltage for accurate sensor measurements.
4. Test and measurement equipment: The device is employed in test and measurement instruments that require highly accurate voltage references.

Detailed and Complete Alternative Models

Some alternative models to the LM4040AEM3-2.5+T include:

1. LM4040BIM3-2.5/NOPB: Similar to LM4040AEM3-2.5+T, but available in a different package (SOT-23).
2. LT1461ACS8-2.5#PBF: A precision voltage reference with a 2.5V output, available in an SOIC-8 package.
3. MAX6126AASA25+: Another voltage reference with a 2.5V output, offered in an SOIC-8 package.

These alternative models provide similar functionality and characteristics, allowing users to choose the most suitable option for their specific application requirements.

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