Exar Corporation
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SPX385AS-L-1-2
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SPX385AS-L-1-2

Product Overview

Category

The SPX385AS-L-1-2 belongs to the category of voltage references.

Use

It is primarily used as a precision voltage reference in various electronic circuits.

Characteristics

  • High accuracy and stability
  • Low temperature coefficient
  • Low output noise
  • Wide operating temperature range

Package

The SPX385AS-L-1-2 is available in a small surface-mount package, making it suitable for compact circuit designs.

Essence

This voltage reference provides a stable and accurate voltage output, ensuring reliable performance of electronic systems.

Packaging/Quantity

The SPX385AS-L-1-2 is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

  • Output Voltage: 1.2V
  • Initial Accuracy: ±0.1%
  • Temperature Coefficient: 10ppm/°C
  • Operating Temperature Range: -40°C to +125°C
  • Supply Voltage Range: 2.7V to 5.5V
  • Output Current: 20mA (maximum)

Detailed Pin Configuration

The SPX385AS-L-1-2 has three pins:

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

Functional Features

  • High precision voltage reference
  • Low power consumption
  • Excellent line and load regulation
  • Short-circuit protection
  • Thermal shutdown protection

Advantages and Disadvantages

Advantages

  • High accuracy and stability ensure reliable performance
  • Low temperature coefficient minimizes voltage drift with temperature changes
  • Low output noise reduces interference in sensitive applications
  • Wide operating temperature range allows for use in various environments

Disadvantages

  • Limited output current may not be suitable for high-power applications
  • Higher cost compared to standard voltage references

Working Principles

The SPX385AS-L-1-2 utilizes bandgap reference technology to generate a stable and precise output voltage. It compensates for temperature variations by employing a temperature-dependent current that cancels out the temperature coefficient of the base-emitter voltage of a bipolar transistor.

Detailed Application Field Plans

The SPX385AS-L-1-2 finds applications in various fields, including:

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

Detailed and Complete Alternative Models

  1. SPX385AS-L-1-0: Output voltage of 1.0V
  2. SPX385AS-L-1-8: Output voltage of 1.8V
  3. SPX385AS-L-2-5: Output voltage of 2.5V
  4. SPX385AS-L-3-3: Output voltage of 3.3V

These alternative models provide different output voltages to suit specific application requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SPX385AS-L-1-2 v technických řešeních

Sure! Here are 10 common questions and answers related to the application of SPX385AS-L-1-2 in technical solutions:

Q1: What is SPX385AS-L-1-2? A1: SPX385AS-L-1-2 is a specific model of voltage reference IC (integrated circuit) manufactured by Exar Corporation.

Q2: What is the purpose of SPX385AS-L-1-2? A2: The purpose of SPX385AS-L-1-2 is to provide a stable and accurate voltage reference for various electronic circuits and systems.

Q3: What is the voltage output range of SPX385AS-L-1-2? A3: SPX385AS-L-1-2 has a voltage output range of 1.225V to 5.0V.

Q4: What is the typical accuracy of SPX385AS-L-1-2? A4: The typical accuracy of SPX385AS-L-1-2 is ±0.2%.

Q5: Can SPX385AS-L-1-2 be used in battery-powered applications? A5: Yes, SPX385AS-L-1-2 can be used in battery-powered applications as it has low power consumption.

Q6: Is SPX385AS-L-1-2 suitable for precision measurement equipment? A6: Yes, SPX385AS-L-1-2 is suitable for precision measurement equipment due to its high accuracy and low temperature coefficient.

Q7: Can SPX385AS-L-1-2 operate in extreme temperature conditions? A7: Yes, SPX385AS-L-1-2 can operate in a wide temperature range from -40°C to +125°C.

Q8: Does SPX385AS-L-1-2 require external components for operation? A8: No, SPX385AS-L-1-2 is a standalone voltage reference and does not require any external components.

Q9: Can SPX385AS-L-1-2 be used in automotive applications? A9: Yes, SPX385AS-L-1-2 is suitable for automotive applications as it meets the required standards and specifications.

Q10: Is SPX385AS-L-1-2 available in different package options? A10: Yes, SPX385AS-L-1-2 is available in various package options, including SOT-23 and SOIC, to accommodate different design requirements.

Please note that these answers are general and may vary depending on specific application requirements.