LM4040DIM3-4.1/NOPB

Product Overview

Category

The LM4040DIM3-4.1/NOPB belongs to the category of precision voltage references.

Use

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

Characteristics

• High accuracy and stability
• Low temperature coefficient
• Wide operating temperature range
• Low power consumption

Package

The LM4040DIM3-4.1/NOPB is available in a small SOT-23 package, which is suitable for surface mount applications.

Essence

The essence of LM4040DIM3-4.1/NOPB lies in its ability to provide a precise and stable voltage reference, ensuring accurate operation of electronic circuits.

Packaging/Quantity

This product is typically sold in reels or tubes containing a specific quantity of LM4040DIM3-4.1/NOPB units, depending on the manufacturer's packaging specifications.

Specifications

• Output Voltage: 4.1V
• Initial Accuracy: ±0.1%
• Temperature Coefficient: 50ppm/°C
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Range: 2.7V to 10V
• Quiescent Current: 60µA (typical)

Pin Configuration

The LM4040DIM3-4.1/NOPB has three pins:

1. VOUT: Output pin, provides a stable 4.1V reference voltage.
2. GND: Ground pin, connected to the circuit ground.
3. VIN: Input pin, receives the supply voltage.

Functional Features

• Precise Voltage Reference: The LM4040DIM3-4.1/NOPB ensures a highly accurate and stable output voltage of 4.1V, making it suitable for precision applications.
• Low Temperature Coefficient: With a temperature coefficient of 50ppm/°C, this voltage reference maintains its accuracy over a wide temperature range.
• Low Power Consumption: The LM4040DIM3-4.1/NOPB operates with low quiescent current, making it energy-efficient and suitable for battery-powered devices.

Advantages and Disadvantages

Advantages

• High accuracy and stability ensure reliable performance in precision applications.
• Wide operating temperature range allows for use in various environmental conditions.
• Small package size enables easy integration into compact electronic designs.
• Low power consumption prolongs battery life in portable devices.

Disadvantages

• Limited output voltage options restrict its use in applications requiring different reference voltages.
• Sensitive to input voltage fluctuations, necessitating proper power supply filtering.

Working Principles

The LM4040DIM3-4.1/NOPB utilizes a bandgap voltage reference circuit to generate a stable 4.1V output voltage. It compensates for temperature variations by employing a proportional-to-absolute-temperature (PTAT) current source and a negative temperature coefficient (NTC) resistor. This design ensures that the output voltage remains constant despite changes in temperature.

Detailed Application Field Plans

The LM4040DIM3-4.1/NOPB finds application in various fields, including:

1. Precision Instrumentation: It is used as a voltage reference in high-precision measurement equipment, such as digital multimeters and oscilloscopes.
2. Analog-to-Digital Converters (ADC): The LM4040DIM3-4.1/NOPB provides a stable reference voltage for accurate conversion of analog signals into digital data.
3. Voltage Regulators: It serves as a precise voltage reference for voltage regulator circuits, ensuring stable and regulated output voltages.
4. Sensor Calibration: The LM4040DIM3-4.1/NOPB is employed in sensor calibration circuits to provide a known and stable reference voltage for accurate sensor measurements.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LM4040DIM3-4.1/NOPB include:

1. LT6654: Precision voltage reference with various output voltage options and low temperature drift.
2. MAX6190: Ultra-low-power voltage reference with high accuracy and low dropout voltage.
3. REF5050: High-precision voltage reference with low noise and excellent long-term stability.

These alternative models can be considered based on specific application requirements and desired features.

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