CurrentFeedback Op Amps Save
Power In Photodiode Apps
: 09/30/02 Electronic
Design - Ideas for Design / Current-feedback
amplifiers offer high bandwidth with minimal
power-supply current draw. However, they're
rarely used as transimpedance amplifiers in
photodiode applications due to the high current
noise of their inverting inputs. The ...
Time tag impulses with zero
crossing circuit:
01/24/2002 EDN - Design Ideas / A
"constant-fraction discriminator" usually
performs the time-tagging of impulsive events,
which have a peaking time of the signal
amplitude. The implementation of this technique
requires a delay in the input signal of
approximately the same amount as the signal's
rise time. You can attain this delay by using a
coaxial cable of an appropriate length. .
Unique discrete zero-crossing
detector:
04/05/99 Electronic Design - Ideas for Design /
A zero-crossing detector delivers an output
pulse that synchronizes other circuitry to the
transitions through zero volts of a sinusodial
source for both polarity excursions. This
detector, which. . .
