LM4040CIZ-2.5

Overview

Product Category

The LM4040CIZ-2.5 belongs to the category of precision voltage references.

Use

It is primarily used as a stable voltage reference in various electronic circuits.

Characteristics

• High accuracy and stability
• Low temperature coefficient
• Low dropout voltage
• Wide operating temperature range

Package

The LM4040CIZ-2.5 is available in a small SOT-23 package, which is suitable for surface mount applications.

Essence

The essence of LM4040CIZ-2.5 lies in its ability to provide a precise and stable voltage reference, ensuring accurate performance of electronic systems.

Packaging/Quantity

The LM4040CIZ-2.5 is typically sold in reels or tubes, with a quantity of 3000 units per reel or 100 units per tube.

Specifications

• Output Voltage: 2.5V
• Initial Accuracy: ±0.1%
• Temperature Coefficient: 50ppm/°C
• Dropout Voltage: 60mV (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LM4040CIZ-2.5 has three pins:

1. VOUT: Output pin, provides a stable 2.5V reference voltage.
2. GND: Ground pin, connected to the system ground.
3. VIN: Input pin, connected to the power supply voltage.

Functional Features

• Precise Voltage Reference: The LM4040CIZ-2.5 ensures a highly accurate and stable output voltage of 2.5V, enabling precise voltage regulation in electronic circuits.
• Low Dropout Voltage: With a low dropout voltage of only 60mV, the LM4040CIZ-2.5 minimizes power dissipation and is suitable for low-power applications.
• Wide Operating Temperature Range: It can operate reliably in a wide temperature range from -40°C to +85°C, making it suitable for various environmental conditions.

Advantages and Disadvantages

Advantages

• High accuracy and stability ensure reliable performance.
• Low dropout voltage minimizes power dissipation.
• Small package size allows for space-saving designs.
• Wide operating temperature range enables versatile applications.

Disadvantages

• Limited output voltage options (only 2.5V).
• Not suitable for high-current applications.

Working Principles

The LM4040CIZ-2.5 utilizes a bandgap reference circuit to generate a stable voltage reference. This circuit compensates for temperature variations, ensuring accurate output voltage regardless of temperature changes. The precise voltage reference is achieved through careful design and calibration of internal components.

Detailed Application Field Plans

The LM4040CIZ-2.5 finds applications in various electronic systems, including:

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

In these applications, the LM4040CIZ-2.5 provides a stable voltage reference, enabling accurate and reliable operation of the associated electronic components.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LM4040CIZ-2.5 include:

1. LT6654: Precision voltage reference with adjustable output voltage.
2. MAX619: Low-power, low-dropout voltage reference.
3. REF102: High-precision voltage reference with low temperature coefficient.

These alternative models provide options for different output voltages, temperature coefficients, and package sizes, allowing designers to choose the most suitable option for their specific requirements.

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