Re: eQADC operation on MPC5554

Allan,
  We have only the 100nF cap not the resistor.
Joe
--- In [email protected], "Dobbin Allan-r11834" 
<Allan.Dobbin@...> wrote:
>
> What do you have connected to the REFBYPC pin?  You should only 
have a
> 100nF cap to gnd, not a resistor.  See EB643 - the resistor was only
> required on very early revs of silicon.
>  
> - Allan
> 
> ________________________________
> 
> From: [email protected] [mailto:[email protected]] On 
Behalf
> Of JVB1_wow
> Sent: Tuesday, November 14, 2006 11:37 AM
> To: [email protected]
> Subject: [MPC500] eQADC operation on MPC5554
> 
> 
> 
> Hello,
> I am designing a system with the MPC5554 micro-controller. We are
> planning on using the eQADC. Checkout of the prototype hardware 
shows
> a large offset voltage of around -0.900V. The measured data in
> perfectly linear just offset by this bias. Anyone seen this before? 
> Thanks.
> 
> Joe
> 
> 
> 
>  
> 
> 
> [Non-text portions of this message have been removed]
>