Hi All !
Just cascading s/h's will not work : opening 'em all up at the same
time will just give you general drift :) Inbetween one needs extra
s/h's to keep the previous value stable until the value is aquired by
the s/h that outputs it . Look at how BBD's work, although in this
case one could get away with much lower spec s/h's for the
While i was typing the above, i was trying to remember where i saw
such a circuit .... And here it is :http://www.synthfool.com/diy/jhasr.gif
See the initials : Juergen Haible :)
The cmos databook i have at hand (1977, where's my newer one ? :) )
does not give the 4098, but it's a dual monostable . My guess is
that here the last s/h gets triggered first, and then the "previous"
one etc . The logic circuit could be copied and applied to any bunch
of s/h's i suppose .
How does the Serge do it ?
Bye for now .
Keep 'em oscillating :)