LM4128AMFX-1.8/NOPB

Product Overview

Category

The LM4128AMFX-1.8/NOPB belongs to the category of voltage references.

Use

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

Characteristics

• High accuracy and stability
• Low temperature coefficient
• Low dropout voltage
• Low quiescent current
• Wide operating temperature range

Package

The LM4128AMFX-1.8/NOPB is available in a small SOT-23 package.

Essence

This voltage reference is designed to provide a precise and stable output voltage for use in analog and digital applications.

Packaging/Quantity

The LM4128AMFX-1.8/NOPB is typically sold in reels containing a specified quantity of units.

Specifications

• Output Voltage: 1.8V
• Initial Accuracy: ±0.2%
• Temperature Coefficient: 50ppm/°C
• Dropout Voltage: 200mV (typical)
• Quiescent Current: 60µA (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM4128AMFX-1.8/NOPB has three pins:

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

Functional Features

• Precise and stable output voltage
• Low power consumption
• Fast response time
• Low noise and ripple
• Short-circuit protection

Advantages

• High accuracy and stability ensure reliable performance.
• Low dropout voltage minimizes power loss.
• Low quiescent current reduces energy consumption.
• Wide operating temperature range allows for versatile applications.

Disadvantages

• Limited output voltage options.
• Sensitive to external noise and interference.
• Relatively small package size may require careful handling during assembly.

Working Principles

The LM4128AMFX-1.8/NOPB utilizes a bandgap voltage reference circuit to generate a precise and stable 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 ensures that the output voltage remains constant over a wide range of operating temperatures.

Detailed Application Field Plans

The LM4128AMFX-1.8/NOPB finds applications in various fields, including:

1. Precision analog circuits
2. Data acquisition systems
3. Battery-powered devices
4. Portable instruments
5. Industrial control systems
6. Automotive electronics

Detailed and Complete Alternative Models

1. LM4040AIM3-1.8/NOPB: 1.8V precision shunt voltage reference
2. LT1461AIS8-1.8/NOPB: 1.8V micropower precision series voltage reference
3. MAX6126AASA25+: 2.5V ultra-high precision voltage reference

These alternative models offer similar functionality and performance characteristics to the LM4128AMFX-1.8/NOPB and can be considered as suitable replacements depending on specific requirements.

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