Analog Devices Inc.
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AD7851KNZ
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AD7851KNZ

Product Overview

Category

AD7851KNZ belongs to the category of analog-to-digital converters (ADCs).

Use

The AD7851KNZ is used to convert analog signals into digital data for various applications.

Characteristics

  • High precision: The AD7851KNZ offers high-resolution conversion with low noise, ensuring accurate digitization of analog signals.
  • Fast conversion rate: This ADC can perform conversions at a high speed, enabling real-time data acquisition.
  • Wide input voltage range: The AD7851KNZ can handle a wide range of input voltages, making it suitable for diverse signal sources.
  • Low power consumption: With its efficient design, this ADC minimizes power consumption, making it ideal for battery-powered devices.

Package

The AD7851KNZ comes in a standard 28-pin plastic dual in-line package (DIP), which provides ease of integration into electronic circuits.

Essence

The essence of the AD7851KNZ lies in its ability to accurately and efficiently convert analog signals into digital form, facilitating further processing and analysis.

Packaging/Quantity

The AD7851KNZ is typically available in reels or tubes, with a quantity of 25 units per reel/tube.

Specifications

  • Resolution: 12 bits
  • Conversion Rate: Up to 100 kilosamples per second (ksps)
  • Input Voltage Range: ±10V
  • Power Supply: +5V
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AD7851KNZ has a total of 28 pins. Below is the detailed pin configuration:

  1. VREF-
  2. VREF+
  3. AGND
  4. DGND
  5. VIN-
  6. VIN+
  7. VDD
  8. CS
  9. RD
  10. WR
  11. BUSY
  12. D0
  13. D1
  14. D2
  15. D3
  16. D4
  17. D5
  18. D6
  19. D7
  20. D8
  21. D9
  22. D10
  23. D11
  24. CLK
  25. INTR
  26. REFOUT
  27. VREFOUT
  28. VDD

Functional Features

  • High-resolution conversion: The AD7851KNZ provides 12-bit resolution, ensuring accurate representation of analog signals.
  • Serial interface: It features a serial interface for easy integration with microcontrollers and other digital devices.
  • On-chip reference: The ADC includes an on-chip reference voltage source, eliminating the need for an external reference.
  • Conversion control: The AD7851KNZ offers various control signals such as CS, RD, and WR to manage the conversion process effectively.

Advantages and Disadvantages

Advantages

  • High precision and accuracy
  • Fast conversion rate
  • Wide input voltage range
  • Low power consumption
  • Integrated reference voltage source

Disadvantages

  • Limited resolution compared to higher-end ADCs
  • Requires external control signals for operation

Working Principles

The AD7851KNZ operates based on the successive approximation register (SAR) architecture. It samples the analog input signal, performs a series of comparisons, and generates a digital output representing the input voltage level.

Detailed Application Field Plans

The AD7851KNZ finds applications in various fields, including: - Industrial automation - Data acquisition systems - Instrumentation and measurement equipment - Medical devices - Communication systems

Detailed and Complete Alternative Models

  • AD7852BNZ: Similar to AD7851KNZ but with 14-bit resolution
  • AD7854ARZ: Higher-resolution ADC with 16-bit capability
  • AD7856ARZ: 18-bit ADC with enhanced precision and accuracy

These alternative models offer different resolution options to suit specific application requirements.

Word count: 448 words

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací AD7851KNZ v technických řešeních

Sure! Here are 10 common questions and answers related to the application of AD7851KNZ in technical solutions:

Q1: What is AD7851KNZ? A1: AD7851KNZ is a 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices. It converts analog signals into digital data for processing in various technical applications.

Q2: What is the operating voltage range of AD7851KNZ? A2: The operating voltage range of AD7851KNZ is typically between 4.75V and 5.25V.

Q3: What is the maximum sampling rate of AD7851KNZ? A3: AD7851KNZ has a maximum sampling rate of 100 kilosamples per second (ksps).

Q4: How many analog input channels does AD7851KNZ have? A4: AD7851KNZ has 8 single-ended analog input channels.

Q5: What is the resolution of AD7851KNZ? A5: AD7851KNZ has a resolution of 12 bits, meaning it can represent analog signals with 4096 discrete levels.

Q6: Does AD7851KNZ support differential inputs? A6: No, AD7851KNZ only supports single-ended analog inputs.

Q7: What is the interface used to communicate with AD7851KNZ? A7: AD7851KNZ uses a parallel interface to communicate with microcontrollers or other digital devices.

Q8: Can AD7851KNZ operate in a low-power mode? A8: Yes, AD7851KNZ has a power-down mode that reduces its power consumption when not actively converting analog signals.

Q9: Is AD7851KNZ suitable for precision measurement applications? A9: Yes, AD7851KNZ is designed for precision measurement applications and offers good linearity and low noise performance.

Q10: What are some typical applications of AD7851KNZ? A10: AD7851KNZ can be used in various applications such as data acquisition systems, industrial automation, medical instruments, and scientific research equipment.

Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.