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AD780ARZ
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AD780ARZ

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Reference
  • Characteristics: High precision, low temperature coefficient, low noise
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Provides a stable and accurate voltage reference for electronic circuits
  • Packaging/Quantity: Comes in a reel with 250 units

Specifications

  • Output Voltage: 2.5V
  • Initial Accuracy: ±0.1%
  • Temperature Coefficient: 10ppm/°C
  • Supply Voltage Range: 4.5V to 36V
  • Quiescent Current: 1.5mA
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The AD780ARZ has a total of 8 pins:

  1. VOUT: Output voltage pin
  2. GND: Ground pin
  3. TRIM: Trim pin for adjusting the output voltage
  4. NC: No connection pin
  5. NC: No connection pin
  6. NC: No connection pin
  7. VIN: Input voltage pin
  8. VDD: Supply voltage pin

Functional Features

  • High Precision: The AD780ARZ provides a highly accurate output voltage of 2.5V with an initial accuracy of ±0.1%.
  • Low Temperature Coefficient: It exhibits a low temperature coefficient of 10ppm/°C, ensuring stability over a wide range of temperatures.
  • Low Noise: The voltage reference is designed to have minimal noise interference, resulting in clean and reliable output signals.

Advantages and Disadvantages

Advantages: - High precision and stability - Low temperature coefficient ensures accuracy across varying temperatures - Low noise interference for reliable performance

Disadvantages: - Limited output voltage options (fixed at 2.5V) - Relatively high quiescent current compared to some other voltage references

Working Principles

The AD780ARZ is based on bandgap reference architecture. It utilizes a combination of bipolar and CMOS technologies to generate a stable and accurate output voltage. The internal circuitry compensates for temperature variations, ensuring consistent performance over a wide temperature range.

Detailed Application Field Plans

The AD780ARZ finds applications in various electronic systems where a precise and stable voltage reference is required. Some common application fields include:

  1. Analog-to-Digital Converters (ADCs)
  2. Digital-to-Analog Converters (DACs)
  3. Voltage regulators
  4. Precision measurement instruments
  5. Sensor calibration circuits

Detailed and Complete Alternative Models

  1. LM4040: Another popular voltage reference IC with adjustable output voltage options.
  2. REF5025: Offers higher precision and lower temperature coefficient than the AD780ARZ.
  3. MAX619: Provides low noise and low dropout voltage for demanding applications.

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

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技術ソリューションにおける AD780ARZ の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of AD780ARZ in technical solutions:

  1. Q: What is AD780ARZ? A: AD780ARZ is a precision voltage reference IC manufactured by Analog Devices.

  2. Q: What is the voltage output range of AD780ARZ? A: The voltage output range of AD780ARZ is typically ±1.25V.

  3. Q: What is the accuracy of AD780ARZ? A: AD780ARZ has an initial accuracy of ±0.1% and a long-term stability of ±50 ppm/°C.

  4. Q: Can AD780ARZ operate from a single power supply? A: Yes, AD780ARZ can operate from a single power supply ranging from 2.7V to 36V.

  5. Q: Is AD780ARZ suitable for low-power applications? A: Yes, AD780ARZ has a low quiescent current of typically 120 µA, making it suitable for low-power applications.

  6. Q: Can AD780ARZ be used as a reference for analog-to-digital converters (ADCs)? A: Yes, AD780ARZ is commonly used as a reference for ADCs due to its high accuracy and stability.

  7. Q: Does AD780ARZ require any external components for operation? A: No, AD780ARZ is a standalone voltage reference and does not require any external components.

  8. Q: Can AD780ARZ tolerate temperature variations? A: Yes, AD780ARZ has a wide operating temperature range of -40°C to +125°C.

  9. Q: What is the output impedance of AD780ARZ? A: The output impedance of AD780ARZ is typically 0.6Ω, making it suitable for driving low impedance loads.

  10. Q: Can AD780ARZ be used in precision measurement applications? A: Yes, AD780ARZ's high accuracy and stability make it well-suited for precision measurement applications such as instrumentation and data acquisition systems.

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