Hello,

I have been trying to come up with a design for
generating 1 us pulses, with PRF of 10kHz (1% duty
cycle) to control a DAC which in turn controls a the
current in a current source.

I have a design for a current source with DAC but its
continuous.

I am having trouble coming up with the right parts
for:

1. Being able to pulse the current source at the
required pulse width.

1. I want to be able to measure the current that is
flowing, somewhere within the 1us time frame. So I
need an a/d that fast enough, and also I need to
trigger it short time after the pulse starts.

3. To complicate it from a non technical side, the
cost has to be low.


I would appreciate it if any one could suggets which
parts would be useful, or perhaps you may already know
where there is a design that can be used.


Thanks.

Mike




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