QD Devices Inc.
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AD7868AN
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AD7868AN

Product Overview

Category

AD7868AN belongs to the category of Analog-to-Digital Converters (ADCs).

Use

The AD7868AN is used for converting analog signals into digital data. It is commonly employed in various applications that require precise and accurate conversion of analog signals, such as industrial automation, medical equipment, and communication systems.

Characteristics

  • High resolution: The AD7868AN offers a high-resolution conversion with its 16-bit ADC.
  • Fast conversion speed: It provides a fast conversion rate of up to 1 MSPS (Mega Samples Per Second).
  • Low power consumption: The device operates at low power, making it suitable for battery-powered applications.
  • Wide input voltage range: It can handle a wide range of input voltages, allowing flexibility in different signal levels.
  • Excellent linearity: The AD7868AN exhibits excellent linearity, ensuring accurate conversion results.
  • Temperature stability: It maintains stable performance across a wide temperature range.

Package

The AD7868AN comes in a standard 28-pin plastic dual in-line package (PDIP), which is widely used in the industry. This package offers ease of handling and compatibility with various circuit board designs.

Essence

The essence of the AD7868AN lies in its ability to convert analog signals into digital data with high precision and speed. It serves as a crucial component in many electronic systems where accurate measurement and control are required.

Packaging/Quantity

The AD7868AN is typically available in reels or tubes, depending on the manufacturer's packaging preference. The quantity per package varies but is commonly found in quantities of 25 or 50 units per package.

Specifications

  • Resolution: 16 bits
  • Conversion Rate: Up to 1 MSPS
  • Input Voltage Range: ±10V
  • Power Supply: +5V
  • Operating Temperature Range: -40°C to +85°C
  • Package Type: 28-pin PDIP

Detailed Pin Configuration

The AD7868AN has a total of 28 pins, each serving a specific function. The pin configuration is as follows:

  1. VREF-
  2. VREF+
  3. AGND
  4. DGND
  5. REFOUT
  6. REFIN
  7. AIN1
  8. AIN2
  9. AIN3
  10. AIN4
  11. AIN5
  12. AIN6
  13. AIN7
  14. AIN8
  15. CS
  16. SCLK
  17. SDATA
  18. RD
  19. WR
  20. RESET
  21. INT/CONVST
  22. D0
  23. D1
  24. D2
  25. D3
  26. D4
  27. D5
  28. D6

Functional Features

High-Resolution Conversion

The AD7868AN offers a 16-bit resolution, ensuring accurate and precise conversion of analog signals into digital data.

Fast Conversion Rate

With a maximum conversion rate of 1 MSPS, the AD7868AN can handle high-speed signal processing requirements.

Flexible Input Voltage Range

The device supports a wide input voltage range of ±10V, allowing it to accommodate various signal levels without additional amplification.

Low Power Consumption

Operating at low power, the AD7868AN is suitable for applications where power efficiency is crucial, such as portable devices or battery-powered systems.

Excellent Linearity

The ADC exhibits excellent linearity, minimizing distortion and ensuring faithful representation of the input signal.

Advantages and Disadvantages

Advantages

  • High-resolution conversion for accurate measurements.
  • Fast conversion rate enables real-time signal processing.
  • Wide input voltage range provides flexibility in signal handling.
  • Low power consumption for energy-efficient applications.
  • Excellent linearity ensures faithful representation of analog signals.

Disadvantages

  • Limited to 16-bit resolution, which may not be sufficient for certain high-precision applications.
  • The package type (PDIP) may not be suitable for space-constrained designs.

Working Principles

The AD7868AN operates based on the successive approximation register (SAR) architecture. It samples the analog input signal and performs a series of comparisons to determine the digital representation. The internal circuitry utilizes a combination of capacitors, switches, and amplifiers to achieve accurate conversion.

Detailed Application Field Plans

The AD7868AN finds extensive use in various application fields, including:

  1. Industrial Automation: Used for precise measurement and control in industrial processes, such as temperature monitoring, pressure sensing, and motor control systems.
  2. Medical Equipment: Employed in medical devices like patient monitors, electrocardiographs, and blood pressure monitors to convert physiological signals into digital data for analysis.
  3. Communication Systems: Utilized in communication equipment for converting analog voice signals into digital format

Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van AD7868AN in technische oplossingen

Sure! Here are 10 common questions and answers related to the application of AD7868AN in technical solutions:

  1. Q: What is AD7868AN? A: AD7868AN is a high-performance, 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices.

  2. Q: What is the operating voltage range for AD7868AN? A: The operating voltage range for AD7868AN is typically between 4.75V and 5.25V.

  3. Q: What is the maximum sampling rate of AD7868AN? A: AD7868AN has a maximum sampling rate of 100 kilosamples per second (ksps).

  4. Q: How many analog input channels does AD7868AN have? A: AD7868AN has 8 single-ended or 4 differential analog input channels.

  5. Q: What is the resolution of AD7868AN? A: AD7868AN has a resolution of 12 bits, which means it can represent analog signals with 4096 discrete levels.

  6. Q: Does AD7868AN support internal or external reference voltage? A: AD7868AN supports both internal and external reference voltage options.

  7. Q: What is the power consumption of AD7868AN? A: The power consumption of AD7868AN varies depending on the operating mode, but it typically ranges from 1mW to 10mW.

  8. Q: Can AD7868AN operate in a wide temperature range? A: Yes, AD7868AN is designed to operate reliably in a wide temperature range, typically from -40°C to +85°C.

  9. Q: Does AD7868AN provide any digital output interface? A: Yes, AD7868AN provides a serial peripheral interface (SPI) for digital communication with microcontrollers or other devices.

  10. Q: What are some typical applications of AD7868AN? A: AD7868AN is commonly used in various applications such as industrial process control, data acquisition systems, medical instrumentation, and automotive electronics.

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