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LM399AH#PBF

LM399AH#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - High precision - Low temperature coefficient - Low noise - Stable output voltage

Package: TO-5 metal can

Essence: The LM399AH#PBF is a precision voltage reference IC that provides a stable and accurate output voltage for various applications.

Packaging/Quantity: Available in tape and reel packaging, with 1000 units per reel.

Specifications

  • Output Voltage: 2.5V
  • Initial Accuracy: ±0.02%
  • Temperature Coefficient: 2ppm/°C
  • Long-Term Stability: 50ppm/year
  • Supply Voltage Range: 4V to 30V
  • Quiescent Current: 1.5mA

Pin Configuration

The LM399AH#PBF has a 3-pin configuration:

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

Functional Features

  • High precision voltage reference
  • Low temperature coefficient ensures stability over a wide temperature range
  • Low noise output for accurate measurements
  • Excellent long-term stability for reliable performance
  • Wide supply voltage range allows flexibility in different applications

Advantages and Disadvantages

Advantages: - High precision and accuracy - Low temperature coefficient - Stable output voltage - Low noise - Long-term stability

Disadvantages: - Relatively high quiescent current compared to some other voltage references - Limited output voltage options

Working Principles

The LM399AH#PBF utilizes a buried Zener diode as the voltage reference element. This diode is thermally coupled to a temperature sensor, which compensates for changes in temperature. The output voltage is then amplified and buffered to provide a stable and accurate reference voltage.

Detailed Application Field Plans

The LM399AH#PBF is commonly used in applications that require precise and stable voltage references. Some of the typical application fields include:

  1. Precision measurement equipment
  2. Data acquisition systems
  3. Analog-to-digital converters (ADCs)
  4. Voltage regulators
  5. Test and measurement instruments

Detailed and Complete Alternative Models

  • LTZ1000A: A high-precision voltage reference with similar characteristics to the LM399AH#PBF.
  • REF102: Another precision voltage reference IC with low temperature coefficient and high accuracy.
  • MAX619: Low-power, low-noise voltage reference suitable for battery-powered applications.

These alternative models offer similar performance and can be considered as substitutes for the LM399AH#PBF in various applications.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi LM399AH#PBF dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of LM399AH#PBF in technical solutions:

  1. Q: What is LM399AH#PBF? A: LM399AH#PBF is a precision voltage reference IC manufactured by Texas Instruments.

  2. Q: What is the voltage output range of LM399AH#PBF? A: The voltage output range of LM399AH#PBF is typically 6.9V to 7.1V.

  3. Q: What is the accuracy of LM399AH#PBF? A: LM399AH#PBF has an initial accuracy of ±0.01% and a long-term stability of ±50ppm/year.

  4. Q: Can LM399AH#PBF be used as a reference for analog-to-digital converters (ADCs)? A: Yes, LM399AH#PBF can be used as a stable voltage reference for ADCs to improve their accuracy.

  5. Q: Is LM399AH#PBF suitable for temperature measurement applications? A: Yes, LM399AH#PBF has low temperature coefficient and excellent linearity, making it suitable for temperature measurement applications.

  6. Q: Can LM399AH#PBF be used in battery-powered devices? A: Yes, LM399AH#PBF has low power consumption and can be used in battery-powered devices.

  7. Q: Does LM399AH#PBF require external components for operation? A: Yes, LM399AH#PBF requires a few external passive components like resistors and capacitors for proper operation.

  8. Q: Can LM399AH#PBF operate in extreme temperature conditions? A: Yes, LM399AH#PBF is designed to operate in a wide temperature range, typically from -55°C to +125°C.

  9. Q: Is LM399AH#PBF suitable for high-precision voltage reference applications? A: Yes, LM399AH#PBF is specifically designed for high-precision voltage reference applications.

  10. Q: Can multiple LM399AH#PBF ICs be used in parallel for increased accuracy? A: Yes, multiple LM399AH#PBF ICs can be used in parallel to improve the overall accuracy of the voltage reference system.

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