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RF Tension Follower

D

David Moreno

Jan 1, 1970
0
Hi All !

I'm trying to do a simple tension follower for frecuency
up to 100MHz. Actually I'm using a BF998 with a R=1k attached
to the source, but i'm observing that the tension output not
resembles very well the tension input (about a 1/3 attenuation)
, Is there any simple circuit for doing an analog tension follower (high
input impedance) that works at high frecuencies ?

Thanks a lot !
 
J

jerrykrinock

Jan 1, 1970
0
Note: For USA engineers, translate "tension" to "voltage".

Also, I believe the specific circuit you are referring to is an
"emitter follower".

1K ohms is a little high for 100 MHz. Try 330 ohms and see if it gets
better.
 
D

David Moreno

Jan 1, 1970
0
Note: For USA engineers, translate "tension" to "voltage".

Ops!, Sorry =D
Also, I believe the specific circuit you are referring to is an
"emitter follower".

That's right, an emitter followe is also refered as voltage follower
and common colector circuits.
1K ohms is a little high for 100 MHz. Try 330 ohms and see if it gets
better.

Yep, thanks ! =D
 
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