>-----Original Message-----
>From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] 
>Sent: 10 June 2005 14:49
>To: Microcontroller discussion list - Public.
>Subject: Re: [EE] Analog "Proportional" Amplifier Design Question
>
>
>> I suspect everyone who has suggested using an A/D and a PWM 
>is totally 
>> right, but I worry about having 8 or 10 bit precision as a limiting 
>> factor. Someone suggested a uC with a 24-bit A/D.  Can you guys 
>> recommend one?
>
>I don't know if there ARE any uC's with built-in 24-bit ADCs.  

Silicon Labs C8051F350 and C8051F350 have 24bit sigma delta converters.  Blows most PICs into the weeds in terms of performance as well.

Mike

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