LM4040D25IDBZT

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 LM4040D25IDBZT is a precision voltage reference IC that provides a stable and accurate output voltage. It is commonly used in various electronic circuits where a precise voltage reference is required.

Packaging/Quantity: The LM4040D25IDBZT is available in a SOT-23-3 package, which is a small surface-mount package. It is typically sold in reels or tubes containing multiple units.

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)

Pin Configuration

The LM4040D25IDBZT has three pins arranged as follows:

```

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| | --| V+ | --| | --| V- | |____| ```

Pin 1: V+ - Input pin connected to the positive supply voltage.

Pin 2: V- - Output pin providing the stable 2.5V reference voltage.

Pin 3: GND - Ground pin connected to the negative supply voltage.

Functional Features

• Precise Voltage Reference: The LM4040D25IDBZT provides a highly accurate and stable 2.5V reference voltage, making it suitable for applications requiring precise voltage references.

• Low Dropout Voltage: With a dropout voltage of only 60mV, the LM4040D25IDBZT can operate efficiently even when the input supply voltage is close to the desired output voltage.

• Wide Operating Temperature Range: The IC can operate reliably in a temperature range from -40°C to +85°C, making it suitable for various environmental conditions.

Advantages and Disadvantages

Advantages: - High accuracy and stability - Small package size - Low dropout voltage - Wide operating temperature range

Disadvantages: - Limited output voltage options (only 2.5V)

Working Principles

The LM4040D25IDBZT utilizes a bandgap voltage reference circuit to generate a stable 2.5V output voltage. It compensates for temperature variations by using a temperature-dependent current source and a precision voltage divider. This ensures that the output voltage remains constant over a wide temperature range.

Detailed Application Field Plans

The LM4040D25IDBZT is commonly used in various electronic systems that require a precise voltage reference. Some typical application areas include:

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

Detailed and Complete Alternative Models

1. LM4040AIM3-2.5/NOPB: Similar specifications, SOT-23-3 package
2. LT1004CZ-2.5#PBF: Higher initial accuracy, TO-92 package
3. MAX6126AASA25+: Lower temperature coefficient, SOT-23-8 package
4. REF102CU: Higher output voltage options, SOIC-8 package

These alternative models offer similar functionality and can be used as substitutes for the LM4040D25IDBZT in various applications.

In conclusion, the LM4040D25IDBZT is a precision voltage reference IC that provides a stable and accurate 2.5V output voltage. It offers high accuracy, low dropout voltage, and wide operating temperature range. Its small package size makes it suitable for space-constrained applications. The IC finds applications in various electronic systems, including ADCs, DACs, voltage regulators, and sensor circuits. Alternative models with different specifications and packages are available for specific requirements.