LM4040CIM3-2.0/NOPB

Product Overview

Category

The LM4040CIM3-2.0/NOPB belongs to the category of voltage references.

Use

It is commonly used as a precision shunt regulator in various electronic circuits.

Characteristics

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

Package

The LM4040CIM3-2.0/NOPB is available in a SOT-23-3 package.

Essence

This product serves as a precise voltage reference, providing a stable output voltage for other components in a circuit.

Packaging/Quantity

The LM4040CIM3-2.0/NOPB is typically packaged in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

• Output Voltage: 2.048V
• Initial Accuracy: ±0.1%
• Temperature Coefficient: 20ppm/°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 LM4040CIM3-2.0/NOPB has three pins:

1. VOUT: Output pin, provides a stable 2.048V reference voltage.
2. GND: Ground pin, connected to the circuit's ground.
3. VIN: Input pin, receives the supply voltage.

Functional Features

• Precise voltage reference: The LM4040CIM3-2.0/NOPB ensures a highly accurate and stable output voltage of 2.048V.
• Low temperature coefficient: The temperature coefficient of 20ppm/°C ensures minimal voltage variation with temperature changes.
• Low dropout voltage: With a typical dropout voltage of 60mV, the LM4040CIM3-2.0/NOPB can operate efficiently even with low input voltages.
• Wide operating range: It can function within a supply voltage range of 2.7V to 10V, making it suitable for various applications.
• Small package size: The SOT-23-3 package allows for compact and space-saving designs.

Advantages and Disadvantages

Advantages

• High accuracy and stability ensure reliable performance in precision applications.
• Low temperature coefficient minimizes voltage drift due to temperature changes.
• Low dropout voltage enables operation with low input voltages.
• Wide operating range provides flexibility in different circuit configurations.
• Small package size allows for integration in space-constrained designs.

Disadvantages

• Limited output voltage options, as it is specifically designed for a fixed 2.048V output.
• Higher cost compared to less precise voltage references.

Working Principles

The LM4040CIM3-2.0/NOPB utilizes a bandgap reference circuit to generate a stable 2.048V output voltage. This circuit compensates for temperature variations, ensuring accurate voltage regulation across a wide temperature range. By comparing the reference voltage to an external feedback voltage, the device adjusts its internal circuitry to maintain a constant output voltage.

Detailed Application Field Plans

The LM4040CIM3-2.0/NOPB finds applications in various fields, including:

1. Precision analog circuits: It provides a stable voltage reference for ADCs, DACs, and other analog components, ensuring accurate signal conversion.
2. Voltage regulators: It serves as a precise shunt regulator in power supply circuits, maintaining a stable voltage for other components.
3. Sensor calibration: The LM4040CIM3-2.0/NOPB can be used to calibrate sensors that require a precise reference voltage.
4. Test and measurement equipment: It is suitable for use in multimeters, oscilloscopes, and other instruments that require accurate voltage references.

Detailed and Complete Alternative Models

1. LM4040AIM3-2.0/NOPB: Similar to the LM4040CIM3-2.0/NOPB, but available in an SOT-23-5 package.
2. LM4040DIM3-2.0/NOPB: Another variant with a fixed 2.048V output, packaged in an SOT-23-3 package.
3. LM4040BIM3-2.0/NOPB: Offers a 2.048V output voltage with improved initial accuracy of ±0.05%.

These alternative models provide similar functionality and characteristics, allowing users to choose the most suitable option for their specific requirements.

In conclusion, the LM4040CIM3-2.0/NOPB is a precision voltage reference with