On 1/28/07, Alexandre Guimar=E3es wrote: > > Hi, > > I always try to route thinking where the current will return but would > never expect that much of a difference with the points so close together > and > with the blob with that small resistance. How much current was passing to > the rest of the circuit ?? If I remember right, about 200mA or thereabouts, but 2dB is 2dB. The concern in this circuit was that the opamps that we could afford had really crappy PSRR at those frequencies. -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist