The concept of track & hold was well understood in 1966 and documented in the classic Philbrick Researches amplifier application book, now available at http://www.analog.com/library/analogdialogue/archives/philbrick/computing_amplifiers.html
Bob LaJeunesse > Sent: Wednesday, July 27, 2016 at 2:15 PM > From: "Scott Stobbe" <scott.j.sto...@gmail.com> > To: "Discussion of precise time and frequency measurement" > <time-nuts@febo.com> > Subject: Re: [time-nuts] Precision DACs > > The first reference at hand I checked was the ADI Data Converter Handbook, > 1986. Pg 60 Discusses track & hold, with a reference to the HDD-1206 as > including track/hold on die. > > On Tue, Jul 26, 2016 at 2:46 PM, Richard (Rick) Karlquist < > rich...@karlquist.com> wrote: > > > > > > > On 7/25/2016 10:42 PM, Scott Stobbe wrote: > > > >> > >> dramatically different due to glitching on code transition. That being > >> said, they are kept separate not to confuse sources of error. > >> > >> > > FWIW: > > > > The 5071A has a "home brew" DDS that was designed by the late > > (and great) Robin Giffard. He used what he called a "blanking" > > circuit that disconnected the DAC during the time period when it > > is at risk for glitching on code transitions. He described it > > in terms of some new innovation he had invented. It seemed to > > me an "obvious" (that loaded word) idea that surely must have > > been used before. In any event, he was clearly doing something > > right (as usual). > > > > Rick > > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
