LM385LPRE3-1-2

Product Overview

Category

LM385LPRE3-1-2 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 power consumption
• Wide operating voltage range

Package

LM385LPRE3-1-2 is available in a small outline package (SOT-23) which allows for easy integration into circuit designs.

Essence

The essence of LM385LPRE3-1-2 lies in its ability to provide a stable and accurate voltage reference, ensuring precise operation of electronic systems.

Packaging/Quantity

The product is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of LM385LPRE3-1-2 units.

Specifications

• Output Voltage: 1.225V ± 0.5%
• Temperature Coefficient: 20ppm/°C (maximum)
• Supply Voltage Range: 1.9V to 5.5V
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

LM385LPRE3-1-2 has three pins:

1. Vout: Output voltage pin
2. GND: Ground pin
3. Vin: Input voltage pin

Functional Features

• Precise voltage reference for analog-to-digital converters (ADCs)
• Stable voltage source for voltage regulators
• Reference voltage for sensor calibration
• Bias voltage for operational amplifiers (op-amps)

Advantages and Disadvantages

Advantages

• High accuracy and stability ensure reliable performance
• Low temperature coefficient minimizes voltage variations with temperature changes
• Low power consumption reduces energy consumption in electronic systems
• Wide operating voltage range allows for versatile applications

Disadvantages

• Limited output voltage options
• Sensitive to noise and external disturbances

Working Principles

LM385LPRE3-1-2 utilizes a bandgap reference circuit to generate a stable voltage reference. This circuit compensates for temperature variations, ensuring a consistent output voltage over a wide temperature range.

Detailed Application Field Plans

LM385LPRE3-1-2 finds application in various fields, including:

1. Precision measurement instruments
2. Data acquisition systems
3. Industrial control systems
4. Battery-powered devices
5. Automotive electronics

Detailed and Complete Alternative Models

1. LM4040: Similar voltage reference with adjustable output voltage
2. LT6654: Precision voltage reference with ultra-low drift
3. REF5025: High-precision voltage reference with low noise

These alternative models offer similar functionality to LM385LPRE3-1-2 but may have different specifications or package options.

In conclusion, LM385LPRE3-1-2 is a precision voltage reference widely used in electronic circuits. Its high accuracy, stability, and low power consumption make it suitable for various applications. However, it has limited output voltage options and is sensitive to noise. The product operates based on a bandgap reference circuit and finds use in precision measurement instruments, data acquisition systems, industrial control systems, battery-powered devices, and automotive electronics. Alternative models such as LM4040, LT6654, and REF5025 provide similar functionality with slight variations in specifications and packaging options.