re:Re: HIP4081

Jon Elson wrote:

> I DID spend a LOT of time on the layout of my servo amp,
> it has 1/4" wide traces for all the power nets, and the loop area
> of the high current paths were worked over for over 2 weeks to
> get them as small as possible. The fact that I can have power
> circuits switching 69 V at 100 KHz with 40-75 nS swings
> of 69V (that's over 1000 V/uS dv/dt) without disturbing
> sensitive analog circuits processing millivolt-level signals
> less than an inch away, proves I did it right.
>
> Jon

Good work Jon. Very few people relies how important PCB layout is.
Besides the things you mentioned many PCB layout people have never
heard of guarding the input of an op amp.


Wally K.