LM4128DMFX-4.1

Product Overview

Category

The LM4128DMFX-4.1 belongs to the category of voltage references.

Use

It is primarily used as a precision voltage reference in various electronic circuits.

Characteristics

• High accuracy and stability
• Low temperature coefficient
• Low output noise
• Wide operating temperature range

Package

The LM4128DMFX-4.1 comes in a small SOT-23 package, which is suitable for surface mount applications.

Essence

The essence of LM4128DMFX-4.1 lies in its ability to provide a precise and stable voltage reference, ensuring accurate performance of electronic systems.

Packaging/Quantity

The LM4128DMFX-4.1 is typically available in reels containing 3000 units per reel.

Specifications

• Output Voltage: 4.1V
• Initial Accuracy: ±0.2%
• Temperature Coefficient: 50ppm/°C
• Supply Voltage Range: 2.7V to 10V
• Quiescent Current: 60µA
• Output Noise Voltage: 35µV (RMS)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LM4128DMFX-4.1 has three pins:

1. VOUT: Output voltage pin.
2. GND: Ground reference pin.
3. VIN: Input supply voltage pin.

Functional Features

• Precise and stable output voltage reference.
• Low power consumption.
• Excellent line and load regulation.
• Fast start-up time.
• Low output noise.

Advantages

• High accuracy and stability ensure reliable performance.
• Low temperature coefficient minimizes variations with temperature changes.
• Wide operating temperature range allows usage in extreme environments.
• Small package size enables space-saving designs.
• Low power consumption extends battery life in portable devices.

Disadvantages

• Limited output voltage options (only 4.1V in this case).
• Higher initial cost compared to less precise voltage references.
• Sensitivity to input voltage fluctuations may require additional filtering.

Working Principles

The LM4128DMFX-4.1 utilizes a bandgap reference circuit to generate a stable voltage output. It compensates for temperature variations and provides a constant reference voltage regardless of changes in the supply voltage or ambient temperature.

Detailed Application Field Plans

The LM4128DMFX-4.1 finds applications in various fields, including:

1. Precision analog-to-digital converters (ADCs)
2. Digital-to-analog converters (DACs)
3. Voltage regulators
4. Battery management systems
5. Industrial control systems
6. Test and measurement equipment

Detailed and Complete Alternative Models

1. LM4040AIM3-4.1/NOPB: 4.1V precision voltage reference in SOT-23 package.
2. LT1461AIS8-4.1#PBF: 4.1V micropower precision shunt voltage reference in SOIC-8 package.
3. REF3030AIDBZT: 4.096V precision voltage reference in SOT-23 package.

These alternative models offer similar functionality and can be considered as substitutes for the LM4128DMFX-4.1.

In conclusion, the LM4128DMFX-4.1 is a high-precision voltage reference with excellent stability and low noise characteristics. Its small package size and wide operating temperature range make it suitable for various electronic applications. While it has some limitations, there are alternative models available that offer similar performance.