Serial or Parallel ADC?
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Serial or Parallel ADC?

 
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Jack// ani
Guest
Posted: Thu Mar 24, 2005 7:10 pm    Post subject: Serial or Parallel ADC? Reply with quote
Hi all,

I want to interface my PIC uC with external ADC, I want to know which
is more easy and better a serial ADC or a parallel ADC?

Thanks

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Lord Garth
Guest
Posted: Thu Mar 24, 2005 7:10 pm    Post subject: Re: Serial or Parallel ADC? Reply with quote
"Jack// ani" <nospam4u_jack@yahoo.com> wrote in message
news:1111688607.582963.51980@l41g2000cwc.googlegroups.com...
Quote:
Hi all,

I want to interface my PIC uC with external ADC, I want to know which
is more easy and better a serial ADC or a parallel ADC?

Thanks


If the uC has a serial port, that would be easier but the rate at which you
could read the conversion results will be faster with a parallel ADC.
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Rene Tschaggelar
Guest
Posted: Thu Mar 24, 2005 7:10 pm    Post subject: Re: Serial or Parallel ADC? Reply with quote
Jack// ani wrote:
Quote:
Hi all,

I want to interface my PIC uC with external ADC, I want to know which
is more easy and better a serial ADC or a parallel ADC?

Slower ADCs use the serial interface while faster
ones are connected in parallel.

Rene
--
Ing.Buero R.Tschaggelar - http://www.ibrtses.com
& commercial newsgroups - http://www.talkto.net

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Luhan Monat
Guest
Posted: Thu Mar 24, 2005 7:10 pm    Post subject: Re: Serial or Parallel ADC? Reply with quote
Jack// ani wrote:
Quote:
Hi all,

I want to interface my PIC uC with external ADC, I want to know which
is more easy and better a serial ADC or a parallel ADC?

Thanks


Its usually better to use a PIC with the ADC built in.

--
Luhan Monat (luhanis 'at' yahoo 'dot' com)
"The future is not what it used to be..."
http://members.cox.net/berniekm
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Rene Tschaggelar
Guest
Posted: Thu Mar 24, 2005 10:10 pm    Post subject: Re: Serial or Parallel ADC? Reply with quote
Luhan Monat wrote:

Quote:
Jack// ani wrote:

Hi all,

I want to interface my PIC uC with external ADC, I want to know which
is more easy and better a serial ADC or a parallel ADC?

Thanks


Its usually better to use a PIC with the ADC built in.

Provided the internal ADC is up to the required
specifications. Though not that bad, it is limited.

Rene
--
Ing.Buero R.Tschaggelar - http://www.ibrtses.com
& commercial newsgroups - http://www.talkto.net
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hamilton
Guest
Posted: Fri Mar 25, 2005 4:10 am    Post subject: Re: Serial or Parallel ADC? Reply with quote
You better check your ADCs, serial, SPI type are faster that parallel
types. Those used in DSP applications are all serial(SPI) type.



Rene Tschaggelar wrote:

Quote:
Jack// ani wrote:

Hi all,

I want to interface my PIC uC with external ADC, I want to know which
is more easy and better a serial ADC or a parallel ADC?


Slower ADCs use the serial interface while faster
ones are connected in parallel.

Rene
Back to top
Mac
Guest
Posted: Fri Mar 25, 2005 7:10 am    Post subject: Re: Serial or Parallel ADC? Reply with quote
On Thu, 24 Mar 2005 18:39:19 -0700, hamilton wrote:
[top posting fixed]
Quote:
Rene Tschaggelar wrote:

Jack// ani wrote:

Hi all,

I want to interface my PIC uC with external ADC, I want to know which
is more easy and better a serial ADC or a parallel ADC?


Slower ADCs use the serial interface while faster ones are connected in
parallel.

Rene

You better check your ADCs, serial, SPI type are faster that parallel
types. Those used in DSP applications are all serial(SPI) type.

If SPI can keep up with the ADC output, then the ADC is not fast, in my
book.

I don't know what problem domain you are used to working in, but all the
fast ADC's I am familiar with are parallel. It wouldn't be all that
practical, in my opinion, to do a 14-bit 100 MHz ADC as a serial part, and
of course it would be impossible for SPI.

--Mac
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Wouter van Ooijen (www.vo
Guest
Posted: Fri Mar 25, 2005 1:10 pm    Post subject: Re: Serial or Parallel ADC? Reply with quote
Quote:
I want to interface my PIC uC with external ADC, I want to know which
is more easy and better a serial ADC or a parallel ADC?

If one were better than the other on all aspects only one type would
be sold.

Note that there are aslo lots of serial variations (SPI, ICC, I2C,
1-wire, etc)


Wouter van Ooijen

-- ------------------------------------
http://www.voti.nl
Webshop for PICs and other electronics
http://www.voti.nl/hvu
Teacher electronics and informatics
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Chopper
Guest
Posted: Sun Mar 27, 2005 4:10 am    Post subject: Re: Serial or Parallel ADC? Reply with quote
Hi

I have used a 11 I/P 8 bit serial ADC on a PIC 16F84 quite successfully.
Serial uses less uC pins so you can the PIC for other things. I had mine
driving a LCD & RS232 chip as well. The programming is slightly more
difficult though as you have to program & count address pulses, clock pulses
& read out the serial data. Parallel stuff works in bytes (or nybbles) which
are usually easier to program

Hope this helps & not too late,

Chopper

Remove 'Chopper' from email address

"Jack// ani" <nospam4u_jack@yahoo.com> wrote in message
news:1111688607.582963.51980@l41g2000cwc.googlegroups.com...
Quote:
Hi all,

I want to interface my PIC uC with external ADC, I want to know which
is more easy and better a serial ADC or a parallel ADC?

Thanks
Back to top
 
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