> 4 analog inputs required, 8 would be useful.  Digital I/O not required.

Erm, just in a very low voice whispering: an 5.1 sound card has 6x16bit
input, right?

Tamas


On 24/10/06, Michael Rigby-Jones <Michael.Rigby-Jones@bookham.com> wrote:
>
>
>
> >-----Original Message-----
> >From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]
> >Sent: 24 October 2006 17:06
> >To: Microcontroller discussion list - Public.
> >Subject: Re: [EE] Cheap and cheerful data aquisition?
> >
> >
> >
> >
> >> Does anyone know of a *cheap* data aquisistion unit, either
> >serial or
> >> USB
> >with 4 or more (idealy 8) analog inputs?  Doesn't have to be
> >particulary fast or high resoltuion (100ms sampling, 10bit
> >would be fine). Digital inputs/outputs useful but not
> >mandatory.  Don't mind a kit or unhoused PCB etc. as long as
> >there is host sofwtare available.  I know I could knock up
> >something with a PIC etc. but I just don't really have to time
> >to do that right know, though I might have to if I can't find
> >anything suitable.
> >>
> >
> >Do you need 8 digital channels or 8 analog channels?
>
> 4 analog inputs required, 8 would be useful.  Digital I/O not required.
>
> >
> >btw, 10 bits __is__ high resolution, anything above
> >or equal to 6 bits is quite good resolution.
>
> Not in my language!  12 bit ADC/DACs is the minimum I use in my job, and
> 16bits is more common.  Even the humble PIC has a 10bit ADC built into many
> variants.  If you want 100's of megasamples/second then 6 bit converters are
> widely used, but for slow speed stuff it's hard to find much under 8 bit
> these days.
>
> Found a few yucky parallel port modules using a bit-bashed SPI ADC, but
> need serial or USB as a laptop will be used to do the logging, and
> bit-bashing over a USB/Parallel adapter is most unlikely to work.
>
> Regards
>
> Mike
>
>
> =======================================================================
> This e-mail is intended for the person it is addressed to only. The
> information contained in it may be confidential and/or protected by
> law. If you are not the intended recipient of this message, you must
> not make any use of this information, or copy or show it to any
> person. Please contact us immediately to tell us that you have
> received this e-mail, and return the original to us. Any use,
> forwarding, printing or copying of this message is strictly prohibited.
> No part of this message can be considered a request for goods or
> services.
> =======================================================================
>
> --
> http://www.piclist.com PIC/SX FAQ & list archive
> View/change your membership options at
> http://mailman.mit.edu/mailman/listinfo/piclist
>



-- 
unPIC -- The PIC Disassembler
http://unpic.sourceforge.net
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist