RE: 8 verses 16 bit

["gary" <gsellani@xxxxxxxxxxxxx>]

Multiple sampling can yield more bits of information than the ADC has itself
if the noise is random. [Similar to sigma-delta data conversion.] RC
filtering can't do this.


> -----Original Message-----
> From: owner-scan@leben.com [mailto:owner-scan@leben.com]On Behalf Of
> rafeb@adelphia.net
> Sent: Tuesday, March 05, 2002 2:12 PM
> To: scan@leben.com
> Subject: RE: 8 verses 16 bit
>
>
> On 5 Mar 2002 at 8:30, gary wrote:
>
> > Note that the ability to digitize the noise is what lets
> averaging reduce
> > noise in the first place.
>
> But by the same token, simple filtering can be done in the
> analog realm with little or no loss and very low cost (eg.,
> an RC filter into a high impedance input.)  I see no point
> of extra data (or bandwidth, for that matter) unless there's a
> benefit somewhere.
>
>
>

-
Turn off HTML mail features. Keep quoted material short. Use accurate
subject lines. http://www.leben.com/lists for list instructions.