[sdiy] fast opamp with low offset

[David G. Dixon]

... oh, and one more thing I thought of was to decrease the size of the ramp
from 5V to, perhaps, 1V, particularly if I increase the current flow, to
avoid long discharge times.  This would also mean less voltage swing on the
cap, which may ease my problem.

Also, I forgot to mention, but the higher current flow (by, say, a factor of
10) might just eat those glitch spikes for breakfast, as their overall
charge won't increase (voltage change on the gate will be the same, and the
gate-source capacitance will be the same, so the glitch charge will be the
same).

Plus, a higher current should be (?) less susceptible to downstream
capacitance (I hope).

(I feel like I'm chained to a rock with a big old bird pecking away at my
innards, and every day I wake up and it starts all over again...)