Medical & High Reliability
Options

Chossing ADC

Chossing ADC

This question is not answered
majid shahpouri
Posted by
on Oct 12 2011 02:16 AM
Prodigy20 points

HI,

I want to use adc with 16 bits resoloution and at least   32 ivoltage input  channels or higher. And this is to important for me tha adc convert all adc in same time . at first I chose ddc 232 and after that I understood that ddc 232 is current input but i need voltage input. can you help me to choosing thr true adc.

thanks alot

Report Abuse
All Replies
  • Chen Kung
    Posted by
    on Oct 18 2011 19:16 PM
    Prodigy440 points

    Hello Majid,

    The DDC232 is very low sample rate.
    (About 3k~6kSPS data rate.)

    Could you provide some details of the application
    for us to suggest the right ADC?

    Thank you.
    Best regards,
    Chen

     

    Report Abuse
  • Chen Kung
    Posted by
    on Oct 22 2011 21:44 PM
    Prodigy440 points

    Hello Majid,

    Although DDC232 is a current input ADC,

    you still can input voltage signal

    by soldering a resister R in series

    (between your voltage input and DDC232 current input pin).

    And also the resister R can not be too small value or too large value.

    For example, if you want to input a voltage sine wave (0V ~ 3.3V),

    please check the output of the data converter.

    If the output signal is too small, then the R value is too large.

    If the output signal is not very linear, then the R value is too small.

    Please try it.

    And welcome to let us know what you can obtain.

    Thanks and best regards,

    Chen

     

     

    Report Abuse

All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.

Content on this site may contain or be subject to specific guidelines or limitations on use. All postings and use of the content on this site are subject to the Terms of Use of the site; third parties using this content agree to abide by any limitations or guidelines and to comply with the Terms of Use of this site. TI, its suppliers and providers of content reserve the right to make corrections, deletions, modifications, enhancements, improvements and other changes to the content and materials, its products, programs and services at any time or to move or discontinue any content, products, programs, or services without notice.

TI Worldwide | Contact Us | my.TI Login | Site Map | Corporate Citizenship | mobile m.ti.com (Mobile Version)

TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs and
embedded processors, along with software, tools and the industry’s largest sales/support staff.

© Copyright 1995-2013 Texas Instruments Incorporated. All rights reserved.
Trademarks | Privacy Policy | Terms of Use