LM4140ACMX-1.0/NOPB

Product Overview

Category

The LM4140ACMX-1.0/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
• Wide operating temperature range

Package

The LM4140ACMX-1.0/NOPB is available in a small SOT-23 package.

Essence

This product serves as a reliable and precise voltage reference for electronic systems, ensuring accurate voltage levels for optimal performance.

Packaging/Quantity

The LM4140ACMX-1.0/NOPB is typically packaged in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

• Output Voltage: 1.0V
• Initial Accuracy: ±0.2%
• Temperature Coefficient: 50ppm/°C
• Dropout Voltage: 200mV (typical)
• Operating Temperature Range: -40°C to +125°C
• Supply Voltage Range: 2.7V to 5.5V
• Quiescent Current: 60µA (typical)

Detailed Pin Configuration

The LM4140ACMX-1.0/NOPB has three pins:

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

Functional Features

• High precision: The LM4140ACMX-1.0/NOPB provides a highly accurate output voltage of 1.0V, ensuring precise voltage references in electronic circuits.
• Low temperature coefficient: With a low temperature coefficient of 50ppm/°C, this voltage reference maintains stability over a wide temperature range.
• Low dropout voltage: The low dropout voltage of 200mV ensures efficient operation even with low input voltages.
• Wide operating temperature range: The LM4140ACMX-1.0/NOPB can operate reliably in temperatures ranging from -40°C to +125°C.

Advantages and Disadvantages

Advantages

• High accuracy and stability ensure reliable voltage references.
• Low dropout voltage allows for efficient operation in low voltage conditions.
• Wide operating temperature range enables usage in various environments.

Disadvantages

• Limited output voltage options (only 1.0V).
• SOT-23 package may not be suitable for all applications requiring voltage references.

Working Principles

The LM4140ACMX-1.0/NOPB utilizes bandgap reference technology to generate a stable and accurate 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 over a wide temperature range.

Detailed Application Field Plans

The LM4140ACMX-1.0/NOPB finds applications in various electronic systems, including but not limited to: - Precision analog-to-digital converters (ADCs) - Digital-to-analog converters (DACs) - Voltage regulators - Battery management systems - Sensor interfaces - Portable devices

Detailed and Complete Alternative Models

Some alternative models to the LM4140ACMX-1.0/NOPB include: - LM4040 series by Texas Instruments - LT6654 series by Analog Devices - MAX6126 series by Maxim Integrated

These alternatives offer similar functionality and performance, providing users with flexibility in choosing the most suitable voltage reference for their specific application.

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