LM385BDG4-1-2

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - Low voltage reference - Precision output voltage - Low temperature coefficient - Low power consumption

Package: SOIC-8

Essence: The LM385BDG4-1-2 is a precision voltage reference IC that provides a stable and accurate output voltage. It is commonly used in various electronic circuits where a precise voltage reference is required.

Packaging/Quantity: The LM385BDG4-1-2 is available in a standard SOIC-8 package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Output Voltage: 1.225V
• Temperature Coefficient: ±50ppm/°C
• Supply Voltage Range: 2.7V to 40V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 120µA

Pin Configuration

The LM385BDG4-1-2 has the following pin configuration:

```

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| | --| V+ |-- --| |-- |____| | | --| V- |-- --|____|-- ```

Pin Descriptions: - V+: Positive supply voltage input - V-: Negative supply voltage input

Functional Features

• Precise and stable output voltage reference
• Low temperature coefficient ensures accuracy over a wide temperature range
• Low power consumption makes it suitable for battery-powered applications
• Wide supply voltage range allows flexibility in different circuit designs

Advantages

• High precision and stability of the output voltage
• Low temperature coefficient ensures accurate performance in varying temperatures
• Low power consumption extends battery life in portable devices
• Wide supply voltage range enables compatibility with various power sources

Disadvantages

• Limited output voltage options (only 1.225V)
• Higher cost compared to less precise voltage references
• Requires external components for proper operation

Working Principles

The LM385BDG4-1-2 is based on a bandgap reference circuit that generates a stable and accurate voltage reference. It utilizes temperature-compensated components to minimize the effect of temperature variations on the output voltage. The internal circuitry ensures low power consumption while maintaining high precision.

Detailed Application Field Plans

The LM385BDG4-1-2 finds applications in various fields, including:

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

Its stable and accurate voltage reference makes it suitable for any application that requires precise voltage regulation.

Detailed and Complete Alternative Models

1. LM4040CIZ-1.2: 1.2V precision shunt voltage reference
2. LT1004CZ-1.2: 1.2V precision reference diode
3. REF102CU: 1.225V precision voltage reference

These alternative models offer similar functionality and can be used as substitutes for the LM385BDG4-1-2 in various applications.

In conclusion, the LM385BDG4-1-2 is a precision voltage reference IC that provides a stable and accurate output voltage. Its low temperature coefficient, low power consumption, and wide supply voltage range make it suitable for a variety of electronic applications. However, its limited output voltage options and higher cost should be considered when selecting alternatives.