Advertisement

Article

ADC Guide, Part 7: ADC reference basics pt. 1

Analog-to-digital converters (ADCs) are one of the most commonly used blocks in embedded systems. Applications of ADCs include current sensing, motor control, temperature sensing and a myriad of others. As a consequence, understanding the basic specifications of an ADC and selecting an appropriate device for the given application is a must for reliable operation and cost-effective design.

This series of articles begins with the basics of ADCs, and then discusses different characteristics of an ADC that are important to design, including the impact of various irregularities, types of ADCs available on the market, advantages and disadvantages of each type, and how their selection varies from application to application.

The first part of this article series discusses what exactly an ADC is and how an ideal ADC works. The second part explores the “simple” specification of sample rate, along with the considerations that affect selecting the converter to match your needed rate, such as the Nyquist rate, undersampling, and aliasing. The third part looks at offset errors and calibration, and the fourth part looks at gain error and drift in that error. The fifth part is a look at two related and sometimes confused nonlinearities in the transfer function, differential and integral. The sixth part discusses common-mode-related input and rejection ratios. Parts 7 and 8 look at reference basics.


Subsequent articles will continue exploring various aspects and parameters of the ADC.

About the authors

Sachin Gupta is a Senior Applications Engineer in the Global Applications team at Cypress Semiconductor Corp. He can be reached at .

Akshay Phatak is an Applications Engineer with Cypress Semiconductor. He holds a Bachelor's degree in Electronics and Telecommunications form College of Engineering, Pune (India). He likes to work on mixed-signal embedded systems. He can be reached at .

1 comment on “ADC Guide, Part 7: ADC reference basics pt. 1

  1. ljsdslfjsldfj
    April 17, 2014

    To find a good printer in Canada. I would suggest using the following companies: Toronto Printing Companies | Calgary Printing Companies | Winnipeg Printing Companies | Montreal Printing Companies | Regina Printing Companies | Saskatoon Printing Companies | Quebec Printing Companies | Ottawa Printing Companies | Edmonton Printing Companies | Vancouver Printing Companies | These companies provide the best and most affordable price in whole Canada. Other printing companies I suggest would be Print Quote Services | Printing Company | Best Local Printer | Some other local cities have great printers as well such as the following: Philadelphia Printing | Memphis Printing | San Francisco Printing

    If you are looking to print custom stickers. The following is my best choice: Label and sticker printing | Print Custom Sticker | Print Stickers | No only they offer the best sticker printing quality but also unbeatable price.

    Nowadays, it is hard to find quality print trader. This is my recommendation for best print trader in the united states Best Print Trader | Lowest Price Printing Wholesale | Print Outsourcing | Print Broker Trade

    Lastly, all print should comes with a state of the art Print Management Software. I would highly recommend this print software tool.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.