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AD7828LNZ
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AD7828LNZ

Product Overview

Category

AD7828LNZ belongs to the category of analog-to-digital converters (ADCs).

Use

The AD7828LNZ is used to convert analog signals into digital data for processing and analysis in various applications.

Characteristics

  • High-resolution: The AD7828LNZ offers a resolution of 12 bits, ensuring accurate conversion of analog signals.
  • Low power consumption: It operates at low power, making it suitable for battery-powered devices.
  • Fast conversion rate: With a maximum conversion rate of 200 kilosamples per second (ksps), it provides rapid data acquisition.
  • Wide input voltage range: The ADC can handle input voltages ranging from 0V to Vref, allowing flexibility in signal measurement.
  • Serial interface: It features a serial peripheral interface (SPI) for easy integration with microcontrollers and other digital systems.

Package and Quantity

The AD7828LNZ comes in a 16-lead narrow-body SOIC (Small Outline Integrated Circuit) package. It is available in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

  • Resolution: 12 bits
  • Conversion Rate: Up to 200 ksps
  • Input Voltage Range: 0V to Vref
  • Interface: SPI (Serial Peripheral Interface)
  • Package Type: 16-lead SOIC

Pin Configuration

The AD7828LNZ has a total of 16 pins, which are assigned specific functions as follows:

  1. VDD - Power supply voltage
  2. VREF - Reference voltage input
  3. AGND - Analog ground
  4. REFOUT - Reference output
  5. VIN - Analog input voltage
  6. VIN - Analog input voltage
  7. VIN - Analog input voltage
  8. VIN - Analog input voltage
  9. VIN - Analog input voltage
  10. VIN - Analog input voltage
  11. VIN - Analog input voltage
  12. VIN - Analog input voltage
  13. VIN - Analog input voltage
  14. VIN - Analog input voltage
  15. SCLK - Serial clock input
  16. CS - Chip select input

Functional Features

  • High accuracy: The AD7828LNZ provides precise conversion of analog signals into digital data, ensuring reliable measurements.
  • Low noise: It incorporates a low-noise architecture, minimizing interference and improving signal integrity.
  • Flexible input range: The ADC supports both single-ended and differential input configurations, accommodating various signal sources.
  • Programmable gain amplifier: It includes a programmable gain amplifier (PGA) that allows amplification of weak signals for better resolution.
  • Internal reference: The AD7828LNZ features an internal voltage reference, eliminating the need for an external reference source.

Advantages and Disadvantages

Advantages

  • High-resolution conversion
  • Low power consumption
  • Fast conversion rate
  • Wide input voltage range
  • Easy integration with microcontrollers

Disadvantages

  • Limited number of input channels
  • Requires an external microcontroller or digital system for data processing

Working Principles

The AD7828LNZ operates based on the successive approximation register (SAR) architecture. It samples the analog input voltage, converts it into a digital representation using a comparator and a capacitive digital-to-analog converter (DAC), and then stores the result in a register. The conversion process is controlled by an internal clock and can be initiated through the serial interface.

Application Field Plans

The AD7828LNZ finds applications in various fields, including: 1. Industrial automation: It can be used for monitoring and control systems in manufacturing processes. 2. Medical devices: The ADC enables accurate measurement of physiological signals in medical equipment. 3. Data acquisition systems: It is suitable for capturing and digitizing analog signals in scientific research and testing. 4. Instrumentation: The AD7828LNZ can be utilized in precision measurement instruments, such as multimeters and oscilloscopes.

Alternative Models

  1. AD7829: Similar to the AD7828LNZ but with a higher resolution of 14 bits.
  2. AD7791: A low-power, 24-bit ADC with integrated PGA and SPI interface.
  3. ADS1115: A 16-bit ADC with programmable gain amplifier and I2C interface.

These alternative models offer different features and specifications, providing options based on specific application requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de AD7828LNZ en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of AD7828LNZ:

  1. Q: What is AD7828LNZ? A: AD7828LNZ is a 12-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices.

  2. Q: What is the operating voltage range of AD7828LNZ? A: The operating voltage range of AD7828LNZ is typically between 2.7V and 5.5V.

  3. Q: How many analog input channels does AD7828LNZ have? A: AD7828LNZ has 8 single-ended analog input channels.

  4. Q: What is the maximum sampling rate of AD7828LNZ? A: AD7828LNZ can sample at a maximum rate of 200 kilosamples per second (ksps).

  5. Q: Does AD7828LNZ require an external reference voltage? A: Yes, AD7828LNZ requires an external reference voltage for accurate conversion.

  6. Q: Can AD7828LNZ operate in both single-ended and differential mode? A: No, AD7828LNZ operates only in single-ended mode.

  7. Q: What is the resolution of AD7828LNZ? A: AD7828LNZ has a resolution of 12 bits, providing 4096 possible digital output values.

  8. Q: Is AD7828LNZ suitable for low-power applications? A: Yes, AD7828LNZ is designed for low-power operation, making it suitable for battery-powered devices.

  9. Q: Does AD7828LNZ have built-in programmable gain amplifiers? A: No, AD7828LNZ does not have built-in programmable gain amplifiers.

  10. Q: What is the interface used to communicate with AD7828LNZ? A: AD7828LNZ uses a standard serial peripheral interface (SPI) for communication with microcontrollers or other devices.

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