On Fri, 01 Dec 2000 17:03:09 +0000 Steve <ve3tu@rac.ca> writes:
>
>Talking about more interesting aspects of amps, I was wondering if
>anyone knows of a single chip microprocessor or pic that has 4 or 8 A/D
>converters in the chip that can monitor 4 input simultaneously. I am
>planning on building a swr protection board for a solid state amp using
>a 68hc11 chip that has a single A/D converter that has selected inputs.
>It takes 32 micro seconds to do each conversion so you don't really get
>a snapshot of the forward and reflected power at the same time. I know
>the you can fudge it with software and get it close but I an interest in
>simultaneous reading on the A/D input or a simple outboard A/D chip
>would do.
>
>tu es 73 Steve VE3TU
>
Hi Steve,
The Microchip PIC 16C7X series approaches that requirement.
They can do 8 bit A/D conversions in 2 uS, which should be sufficiently
close to simultaneous for a SWR meter application.
73,
Marv WC6W
*
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