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Have a question about ADCs or DACs? Ask our Expert, Nick Gray

ChristyZ
ChristyZ over 16 years ago

This thread has been closed to new questions.

However, we welcome you to Post Your Question about Communications in the element14 Community Wireless Communications Technology group. You'll find many fellow members and experts who have just the answer you're looking to find! 

 

Thank You, Your Friends at element14 Community


Nick Gray

 

Nicholas Gray

Nicholas has worked in the Semiconductor industry for over 30 years and has authored a number of published articles about data converters (ADCs and DACs) and signal integrity issues.

 

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Top Replies

  • nickgray
    nickgray over 14 years ago in reply to Former Member +1
    Hi, Ben, A couple of ADCs that should do well in your application with Hall Effect sensors are the ADS1146 and the ADS1255, both from Texas Instruments. I am sure that other suppliers probably have suitable…
  • nickgray
    nickgray over 14 years ago in reply to YT2095 +1
    The reason that you picked up radio signals when connecting a long wire antenna to the input is because the ADC had an input bandwidth that could pick up those signals. The sampling action of the ADC then…
Parents
  • Former Member
    Former Member over 15 years ago

    Dear Sir,

     

    Can you explain to me what is the function of this device  DG201 CMOS QUAD SPST ANALOG SWITCH? I had search using google or yahoo  search machine but still cant find any site explaining this device except the DATASHEET. The DATASHEET did not explain in details the theory behind it. So  if you know what is it please tell me or paste the link for me here.Thanks..

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  • Former Member
    Former Member over 15 years ago

    Dear Sir,

     

    Can you explain to me what is the function of this device  DG201 CMOS QUAD SPST ANALOG SWITCH? I had search using google or yahoo  search machine but still cant find any site explaining this device except the DATASHEET. The DATASHEET did not explain in details the theory behind it. So  if you know what is it please tell me or paste the link for me here.Thanks..

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  • JohnDSiviter
    JohnDSiviter over 15 years ago in reply to Former Member

    Hi Steven,

     

    A tip: just type it into Google, I did that and found: http://www.intersil.com/products/deviceinfo.asp?pn=dg201

     

    SPST = Single Pole, Single Throw (1 in, 1 out).

     

    Its a simple voltage controlled switch.

     

    Regards,

    John.

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  • nickgray
    nickgray over 15 years ago in reply to Former Member

    Hi, Stephen -

     

    The function of an analog switch is basically the same as a mechanical relay, except that the analog switch is a solid state device using MOSFETs. The analog switch generally does have a higher input to output capacitance than does a mechanical relay, which allows high frequency signals to pass when the switchis "open". A good tutorial on the analog switch can be found at www.analog.com/static/imported-files/tutorials/MT-088.pdf.

     

     

    - Nicholas "Nick" Gray

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