I'm trying to build voltage to current converter. Trouble is that voltage should be arbitrary waveform (1kHz bandwidth) so that the current source output is not a DC.
The op-amp I'm using has 8Mhz bandwidth and that is way to fast and creates oscillations in the output waveform. I had no luck with slower op-amps I had to use 3R6 that is about 25k to slow it down, but then I can't have half sinusoid grater than 100Hz and goal is 1kHz. Solution was to add cap 3C10 of 1nF, but whenever current has to rise from 0 to specific value overshoot occurs and I don't know how to solve that problem. Any hints?
The op-amp I'm using has 8Mhz bandwidth and that is way to fast and creates oscillations in the output waveform. I had no luck with slower op-amps I had to use 3R6 that is about 25k to slow it down, but then I can't have half sinusoid grater than 100Hz and goal is 1kHz. Solution was to add cap 3C10 of 1nF, but whenever current has to rise from 0 to specific value overshoot occurs and I don't know how to solve that problem. Any hints?