LM385M

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

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

Package: SOP-8 (Small Outline Package)

Essence: The LM385M is a precision voltage reference IC that provides a stable and accurate output voltage for various electronic applications.

Packaging/Quantity: The LM385M is typically available in reels of 2500 units.

Specifications

• Output Voltage Range: 1.235V to 5.0V
• Initial Accuracy: ±0.2%
• Temperature Coefficient: 20ppm/°C
• Supply Voltage Range: 2.7V to 30V
• Quiescent Current: 120µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM385M has 8 pins arranged as follows:

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| | --|____|-- | | --|____|-- | | --|____|-- ```

Pin 1: Vout (Output Voltage) Pin 2: GND (Ground) Pin 3: NC (No Connection) Pin 4: NC (No Connection) Pin 5: NC (No Connection) Pin 6: NC (No Connection) Pin 7: Vin (Supply Voltage) Pin 8: NC (No Connection)

Functional Features

• Stable and precise 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 and Disadvantages

Advantages: - High precision and stability - Low temperature coefficient - Low power consumption - Wide supply voltage range

Disadvantages: - Limited output voltage range (1.235V to 5.0V) - Not suitable for high current applications

Working Principles

The LM385M utilizes a bandgap voltage reference circuit to generate a stable and accurate output voltage. It compensates for temperature variations by using a combination of bipolar and CMOS technologies, resulting in a low temperature coefficient.

Detailed Application Field Plans

The LM385M is commonly used in various electronic systems that require a precise and stable voltage reference. Some typical application fields include:

1. Analog-to-Digital Converters (ADCs)
2. Digital-to-Analog Converters (DACs)
3. Voltage regulators
4. Battery-powered devices
5. Precision measurement instruments

Detailed and Complete Alternative Models

1. LM4040: Similar voltage reference IC with different package options (SOT-23, TO-92).
2. LT1004: Precision voltage reference IC with higher accuracy and lower temperature coefficient.
3. REF102: High-precision voltage reference IC with ultra-low temperature drift.

These alternative models offer similar functionality and can be considered as substitutes for the LM385M depending on specific requirements.

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