kirkr
Newbie level 2
![Newbie level 2](/styles/images/ranks/alevel2.gif)
I have designed a opamp based voltage peak detector. As shown in the diagram below. however the output voltage only follows the input I thought i had the cap sized right to hold the value longer. The input wave is only about 1ns or smaller pulse is the goal.
![4717355400_1361298000.jpeg](https://obrazki.elektroda.pl/4717355400_1361298000.jpeg)