Analog Devices Inc.
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AD7228ABR
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AD7228ABR

Product Overview

Category

The AD7228ABR belongs to the category of digital-to-analog converters (DACs).

Use

It is used to convert digital signals into analog voltage or current outputs.

Characteristics

  • Resolution: 8 bits
  • Number of Channels: 8
  • Interface Type: Serial (SPI)
  • Supply Voltage: 5V
  • Operating Temperature Range: -40°C to +85°C

Package

The AD7228ABR comes in a 24-lead SOIC (Small Outline Integrated Circuit) package.

Packaging/Quantity

The product is typically available in reels with a quantity of 250 units per reel.

Specifications

  • Resolution: 8 bits
  • Settling Time: 1.5μs
  • Integral Nonlinearity Error: ±0.5 LSB
  • Differential Nonlinearity Error: ±0.5 LSB
  • Output Voltage Range: 0V to Vref
  • Power Consumption: 10mW
  • Reference Input Voltage Range: 2V to 11V

Detailed Pin Configuration

The pin configuration of the AD7228ABR is as follows: 1. VOUT1 2. VOUT2 3. VOUT3 4. VOUT4 5. VOUT5 6. VOUT6 7. VOUT7 8. VOUT8 9. AGND 10. VREF 11. SCLK 12. SDIN 13. CS 14. LDAC 15. GND 16. VCC 17. VLOGIC 18. VDD 19. VSS 20. VEE 21. VOUTCOM 22. VOUTCOM 23. VOUTCOM 24. VOUTCOM

Functional Features

The AD7228ABR offers the following functional features: - Simultaneous update of all DAC outputs - Low power consumption - Serial interface for easy integration with microcontrollers and other digital systems - Internal voltage reference

Advantages and Disadvantages

Advantages

  • High resolution
  • Multiple channels
  • Serial interface simplifies control and reduces pin count
  • Low power consumption

Disadvantages

  • Limited output voltage range compared to some other DACs
  • Requires an external reference voltage

Working Principles

The AD7228ABR operates by accepting digital input data through its serial interface and converting it into corresponding analog output voltages on its eight channels. It utilizes an internal voltage reference to achieve accurate conversions.

Detailed Application Field Plans

The AD7228ABR is well-suited for various applications, including: - Industrial automation - Test and measurement equipment - Audio equipment - Instrumentation and control systems - Programmable logic controllers (PLCs)

Detailed and Complete Alternative Models

Some alternative models to the AD7228ABR include: - AD7303YRUZ: 8-bit DAC with parallel interface - MCP4921-E/P: 12-bit DAC with SPI interface - MAX5216: 16-bit DAC with I2C interface

In conclusion, the AD7228ABR is a versatile 8-bit DAC that offers high resolution, multiple channels, and a serial interface for easy integration. Its low power consumption and simultaneous update capability make it suitable for various industrial and consumer applications.

Word Count: 470

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací AD7228ABR v technických řešeních

  1. What is the AD7228ABR?

    • The AD7228ABR is an 8-bit digital-to-analog converter (DAC) with a voltage output, designed for various applications in industrial control systems, process automation, and instrumentation.

  2. What is the resolution of the AD7228ABR?

    • The AD7228ABR has an 8-bit resolution, providing 256 discrete voltage levels.

  3. What is the typical operating voltage range for the AD7228ABR?

    • The AD7228ABR typically operates within a voltage range of +12V to -12V.

  4. What are the key features of the AD7228ABR?

    • Some key features of the AD7228ABR include low power consumption, fast settling time, and a serial interface for easy integration into digital systems.

  5. How can the AD7228ABR be used in industrial control systems?

    • The AD7228ABR can be used to generate precise analog control signals for motor speed control, valve positioning, and other industrial control applications.

  6. Can the AD7228ABR be used in process automation?

    • Yes, the AD7228ABR can be utilized in process automation to provide accurate analog outputs for controlling temperature, pressure, and flow in manufacturing processes.

  7. What are some typical applications of the AD7228ABR in instrumentation?

    • In instrumentation, the AD7228ABR can be employed for generating analog signals for data acquisition systems, signal conditioning, and sensor calibration.

  8. Does the AD7228ABR support daisy-chaining for multiple DACs?

    • Yes, the AD7228ABR supports daisy-chaining, allowing multiple DACs to be connected in series for synchronized operation.

  9. What is the temperature range for the AD7228ABR's operation?

    • The AD7228ABR is designed to operate within a temperature range of -40°C to +85°C, making it suitable for a wide range of environments.

  10. Are there any evaluation boards or development kits available for the AD7228ABR?

    • Yes, evaluation boards and development kits are available to facilitate the evaluation and prototyping of designs incorporating the AD7228ABR.