LM4140ACMX-4.1/NOPB

Product Overview

Category

The LM4140ACMX-4.1/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 output noise
• Wide operating temperature range

Package

The LM4140ACMX-4.1/NOPB is available in a small surface-mount SOT-23 package.

Essence

This product serves as a reliable and precise voltage reference, providing a stable voltage output for accurate circuit operation.

Packaging/Quantity

The LM4140ACMX-4.1/NOPB is typically packaged in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

• Output Voltage: 4.1V
• Initial Accuracy: ±0.2%
• Temperature Coefficient: 50ppm/°C
• Supply Voltage Range: 2.7V to 5.5V
• Quiescent Current: 60µA
• Output Noise Voltage: 30µVrms (10Hz to 10kHz)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LM4140ACMX-4.1/NOPB has three pins:

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

Functional Features

• High precision: The LM4140ACMX-4.1/NOPB offers excellent initial accuracy and low temperature coefficient, ensuring precise voltage reference.
• Low noise: It provides a low output noise voltage, minimizing interference in sensitive circuits.
• Wide operating temperature range: The LM4140ACMX-4.1/NOPB can operate reliably in extreme temperature conditions.
• Low power consumption: With a low quiescent current, it minimizes power consumption in battery-powered applications.

Advantages and Disadvantages

Advantages

• High accuracy and stability ensure reliable voltage reference.
• Low noise output for interference-free operation.
• Wide operating temperature range allows usage in various environments.
• Low power consumption extends battery life in portable devices.

Disadvantages

• Limited output voltage options.
• Sensitive to supply voltage fluctuations.
• Requires external components for proper operation.

Working Principles

The LM4140ACMX-4.1/NOPB utilizes bandgap reference technology to generate a stable voltage output. It compensates for temperature variations by using a combination of bipolar and CMOS transistor characteristics. This ensures accurate and stable voltage reference over a wide temperature range.

Detailed Application Field Plans

The LM4140ACMX-4.1/NOPB finds applications in various fields, including:

1. Precision measurement instruments
2. Data acquisition systems
3. Analog-to-digital converters (ADCs)
4. Voltage regulators
5. Portable electronic devices

Detailed and Complete Alternative Models

1. LM4040AIM3-4.1/NOPB: 4.1V precision voltage reference with similar specifications.
2. LT6656BCS6-4.1#TRMPBF: Ultra-precision 4.1V voltage reference with excellent long-term stability.
3. MAX6126AASA41+: Low-noise, high-accuracy 4.1V voltage reference suitable for demanding applications.

These alternative models offer similar functionality and can be considered as substitutes for the LM4140ACMX-4.1/NOPB.

In conclusion, the LM4140ACMX-4.1/NOPB is a precision voltage reference with high accuracy, stability, and low noise output. It finds applications in various fields and offers advantages such as wide operating temperature range and low power consumption. However, it has limitations regarding output voltage options and sensitivity to supply voltage fluctuations. Alternative models are available for consideration based on specific requirements.