LM4040AIM3-2.1+T

Product Overview

Category

The LM4040AIM3-2.1+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 LM4040AIM3-2.1+T is available in a small SOT-23 package, which is suitable for surface mount applications.

Essence

This product serves as a precise voltage reference, providing a stable and accurate voltage output.

Packaging/Quantity

The LM4040AIM3-2.1+T is typically packaged in reels or tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

• Output Voltage: 2.1V
• Initial Accuracy: ±0.1%
• Temperature Coefficient: 50ppm/°C
• Operating Voltage Range: 2.7V to 10V
• Quiescent Current: 60µA (typical)

Detailed Pin Configuration

The LM4040AIM3-2.1+T has three pins:

1. VOUT: Output pin, provides a stable 2.1V reference voltage.
2. GND: Ground pin, connected to the system ground.
3. VIN: Input pin, receives the input voltage for regulation.

Functional Features

• Precise voltage reference: The LM4040AIM3-2.1+T ensures a highly accurate and stable output voltage of 2.1V.
• 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 of 2.7V to 10V, making it versatile for various applications.
• Low quiescent current consumption: With a low quiescent current of 60µA, the LM4040AIM3-2.1+T minimizes power consumption.

Advantages and Disadvantages

Advantages

• High accuracy and stability ensure reliable voltage regulation.
• Low temperature coefficient guarantees minimal voltage drift with temperature changes.
• Wide operating voltage range allows for flexibility in different circuit designs.
• Low quiescent current consumption reduces power consumption and extends battery life.

Disadvantages

• Limited output voltage options, as it only provides a fixed 2.1V reference voltage.
• SOT-23 package may not be suitable for all applications requiring higher power dissipation.

Working Principles

The LM4040AIM3-2.1+T utilizes a bandgap voltage reference circuit to generate a precise and stable 2.1V output voltage. This circuit compensates for temperature variations, ensuring accurate voltage regulation across a wide temperature range. The device operates by comparing the internal reference voltage with the input voltage, adjusting the output accordingly to maintain a constant 2.1V.

Detailed Application Field Plans

The LM4040AIM3-2.1+T finds application in various fields, including:

1. Precision analog circuits: It is commonly used as a voltage reference in precision analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and operational amplifiers (op-amps).
2. Sensor calibration: The LM4040AIM3-2.1+T can be employed to calibrate sensors that require a stable and accurate voltage reference.
3. Battery-powered devices: It is suitable for battery-powered devices that require precise voltage regulation, such as portable medical devices, handheld instruments, and consumer electronics.

Detailed and Complete Alternative Models

Some alternative models to the LM4040AIM3-2.1+T include:

1. LM4040AIM3-2.5+T: Provides a 2.5V output voltage with similar characteristics.
2. LM4040AIM3-3.0+T: Offers a 3.0V output voltage with comparable specifications.
3. LM4040AIM3-4.1+T: Provides a 4.1V output voltage for applications requiring higher reference voltages.

These alternative models cater to different voltage requirements while maintaining the accuracy and stability of the LM4040AIM3-2.1+T.

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