LM385BDE4-1-2

Introduction

The LM385BDE4-1-2 is a precision voltage reference belonging to the LM385 family of precision voltage references. This entry provides an overview of the LM385BDE4-1-2, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Precision Voltage Reference
• Use: Provides a stable reference voltage for various applications
• Characteristics: High accuracy, low temperature coefficient, low power consumption
• Package: SOT-23 package
• Essence: Precision voltage reference
• Packaging/Quantity: Available in tape and reel packaging with varying quantities

Specifications

• Output Voltage: 1.235V ± 1%
• Temperature Coefficient: 50ppm/°C (typical)
• Operating Temperature Range: -40°C to 85°C
• Supply Voltage Range: 1.0V to 5.0V
• Quiescent Current: 120µA (typical)

Detailed Pin Configuration

The LM385BDE4-1-2 has three pins: 1. V+ (Pin 1): Input voltage 2. Vout (Pin 2): Output voltage 3. Ground (Pin 3): Ground connection

Functional Features

• Provides a stable 1.235V reference voltage
• Low temperature coefficient ensures minimal output voltage variation with temperature changes
• Low power consumption makes it suitable for battery-powered applications

Advantages and Disadvantages

Advantages

• High accuracy and stability
• Wide supply voltage range
• Small form factor and low power consumption

Disadvantages

• Limited output voltage options
• Sensitive to load variations

Working Principles

The LM385BDE4-1-2 operates based on the bandgap reference principle, where the output voltage is derived from the base-emitter voltage of a bipolar transistor.

Detailed Application Field Plans

The LM385BDE4-1-2 finds applications in various precision voltage reference circuits, including: - Analog-to-digital converters - Voltage regulators - Battery management systems - Instrumentation and measurement equipment

Detailed and Complete Alternative Models

Some alternative models to the LM385BDE4-1-2 include: - LM4040 - LTZ1000 - REF02

In conclusion, the LM385BDE4-1-2 is a precision voltage reference that offers high accuracy, stability, and low power consumption, making it suitable for a wide range of precision voltage reference applications.

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