navrh vstupu ADC

[Lubos Medovarsky]

Zdravim,

odhodlania mam dost, cas si na to najst musim, lebo (uz asi byvaly)
kolega sa mesiace hral na slubotechnu a penazi uz je v tom dost na to,
aby som to teraz vzdal, takze 3x hura do toho :-)

V DS AD7714 sa na prvej strane pise:
The input signal is applied to a proprietary programmable gain
front end based around an analog modulator. The modulator output
is processed by an on-chip digital filter. The first notch
of this digital filter can be programmed via the on-chip control
register allowing adjustment of the filter cutoff and settling time.

Je mnou navrhnuty low pass zbytocny a nahradi ho spravne
nastavenie integrovaneho digitalneho filtra?


Vdaka

Lubos


gatilo wrote:
>  8.11.2008, 16:04:47
> 
> Jeste doplnim. 10mV s 16b presnosti neni zas tak upne sranda, ani pro
> pokrocileho analogare. Takze zalezi na tom, kolik mate odhodlani, casu
> a penez.
> 
> S pozdravem Pavel
>   mailto:gatilo + zavinac + centrum.cz
> 
> --
> gatilo napsal:
> 
>>  8.11.2008, 15:57:15
> 
>> Kdyz pouzijete jednoduchou DP s meznim kmitoctem 15 Hz, pak pro 10 Hz bude mit
>> utlum mnohem vetsi nez rozliseni 16b ADC.
> 
>> S pozdravem Pavel