LM4040B25IDBZR

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - Precision voltage reference - Low dropout voltage - High accuracy and stability - Wide operating temperature range - Small package size - Low power consumption

Package: SOT-23-3

Essence: The LM4040B25IDBZR is a precision voltage reference IC that provides a stable and accurate output voltage. It is commonly used in various electronic devices where a precise reference voltage is required.

Packaging/Quantity: The LM4040B25IDBZR is available in tape and reel packaging, with 3000 units per reel.

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
• Supply Voltage Range: 2.7V to 10V
• Quiescent Current: 60µA (typical)

Detailed Pin Configuration

The LM4040B25IDBZR has three pins:

1. VOUT: Output pin, connected to the load or circuit requiring a stable reference voltage.
2. GND: Ground pin, connected to the common ground of the system.
3. VIN: Input pin, connected to the supply voltage source.

Functional Features

• High precision: The LM4040B25IDBZR offers a high initial accuracy of ±0.1%, ensuring a reliable and stable reference voltage.
• Low dropout voltage: With a low dropout voltage of only 60mV, this voltage reference can operate efficiently even when the input voltage is close to the desired output voltage.
• Wide operating temperature range: The LM4040B25IDBZR can operate in a wide temperature range from -40°C to +85°C, making it suitable for various environmental conditions.
• Low power consumption: With a quiescent current of only 60µA, this IC minimizes power consumption and extends battery life in portable devices.

Advantages and Disadvantages

Advantages: - High accuracy and stability - Small package size - Wide operating temperature range - Low power consumption

Disadvantages: - Limited output voltage options (only 2.5V in this model) - Not suitable for applications requiring higher output voltages

Working Principles

The LM4040B25IDBZR is based on a bandgap reference circuit that generates a stable voltage reference using temperature-compensated components. It utilizes a precision resistor network and a temperature sensor to maintain the desired output voltage over a wide temperature range.

Detailed Application Field Plans

The LM4040B25IDBZR is commonly used in various electronic systems and applications, including but not limited to: - Analog-to-digital converters (ADCs) - Digital-to-analog converters (DACs) - Voltage regulators - Precision measurement equipment - Battery-powered devices - Industrial control systems

Detailed and Complete Alternative Models

1. LM4040C25IDBZR: Similar to LM4040B25IDBZR, but with an output voltage of 2.5V ±0.2%.
2. LM4040AIM3-2.5/NOPB: Another 2.5V precision voltage reference with a different package (SOT-23-3) and improved initial accuracy of ±0.05%.

These alternative models provide similar functionality and can be considered as substitutes depending on specific requirements and availability.

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