LM4040D82IDBZT

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

Package: SOT-23-3

Essence: The LM4040D82IDBZT is a precision voltage reference IC used to provide a stable and accurate voltage reference in various electronic circuits.

Packaging/Quantity: The LM4040D82IDBZT is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Output Voltage: 8.2V
• 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 LM4040D82IDBZT has three pins:

1. VOUT: Output pin, provides the stable 8.2V reference voltage.
2. GND: Ground pin, connected to the circuit ground.
3. VIN: Input pin, receives the supply voltage for the reference IC.

Functional Features

• High precision and stability: The LM4040D82IDBZT offers a high initial accuracy of ±0.1% and a low temperature coefficient of ±50ppm/°C, ensuring a stable and accurate voltage reference over a wide temperature range.
• Low dropout voltage: With a typical dropout voltage of only 60mV, the LM4040D82IDBZT can operate efficiently even when the supply voltage is close to the desired output voltage.
• Wide operating temperature range: The IC can operate reliably in temperatures ranging from -40°C to +85°C, making it suitable for various environmental conditions.
• Small package size: The SOT-23-3 package provides a compact and space-saving solution for applications with limited board space.

Advantages

• High accuracy and stability ensure precise voltage references in electronic circuits.
• Low dropout voltage minimizes power dissipation and improves efficiency.
• Wide operating temperature range allows for reliable operation in different environments.
• Small package size enables integration into space-constrained designs.

Disadvantages

• Limited output voltage options (specifically 8.2V in this case).
• Requires an external decoupling capacitor for optimal performance.

Working Principles

The LM4040D82IDBZT utilizes bandgap reference technology to generate a stable and accurate voltage reference. It employs a precision resistor network and temperature compensation circuitry to achieve high accuracy and stability over a wide temperature range. The IC operates by comparing the reference voltage with the input voltage and adjusting the output accordingly.

Detailed Application Field Plans

The LM4040D82IDBZT is commonly used in various applications, including:

1. Precision analog-to-digital converters (ADCs)
2. Voltage regulators
3. Data acquisition systems
4. Battery management systems
5. Industrial control systems

In these applications, the LM4040D82IDBZT provides a reliable and precise voltage reference, ensuring accurate measurements, stable power supplies, and consistent system performance.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LM4040D82IDBZT include:

1. LM4040AIM3-8.2/NOPB
2. LT1021BCN8-8.2
3. REF5025AIDGKT
4. MAX6126AASA25

These alternatives can be considered based on specific requirements and availability in different markets.

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