J
jss87
- Jan 1, 1970
- 0
First of all, I don't know what I'm doing; so feel free to disparage my
attempts. I'm just trying to lash together some old and new equipment.
I have some pulses that are "triangular" with a flat top; the time from
start to top is about 5 to 20 microseconds and the flat portion about 0 to 5
microseconds. The timing will be constant for a given setup, but I'd like to
be able to handle them all. The input is 0 to 1 V, and I'd like a gain of 8
to 10. The pulses come in random intervals.
I've tried an AD829 which should have plenty of speed. The output is about
as wide as the input, but it has three states depending on the value of the
feedback resistor: flat, variable over a narrow range, but the output does
not seem to depend on the input voltage, or pegged.
I would welcome any suggested schemes for this amplification, or tips based
on the behavior I'm seeing.
Thanks,
John
attempts. I'm just trying to lash together some old and new equipment.
I have some pulses that are "triangular" with a flat top; the time from
start to top is about 5 to 20 microseconds and the flat portion about 0 to 5
microseconds. The timing will be constant for a given setup, but I'd like to
be able to handle them all. The input is 0 to 1 V, and I'd like a gain of 8
to 10. The pulses come in random intervals.
I've tried an AD829 which should have plenty of speed. The output is about
as wide as the input, but it has three states depending on the value of the
feedback resistor: flat, variable over a narrow range, but the output does
not seem to depend on the input voltage, or pegged.
I would welcome any suggested schemes for this amplification, or tips based
on the behavior I'm seeing.
Thanks,
John