A lot of people do. But sometimes very fast devices are cumbersome to use - they require good board layout to remain stable, may have excessive input bias currents and quite low DC gain. Many use the current-feedback topology so you generally just can't plug them into a circuit designed for a VFB opamp.
So sure you you can use 'em, many offer low noise and overall very good performance. You just really need to know what you are doing to take advantage of them.
/M
Re: Maxim-IC Video Op-Amps
Video opamps are often current feedback opamps -- so be mindful of their requirements, Texas Instruments has some good apnotes on this topic. Be very mindful of layout and bypassing.
D_GR8_1 said:Has anyone used video op-amps for active filters?
They have massive Slew Rate upto 1.2kV/us.
Massive bandwidth 1000MHz, and so on.
With audio amps we use these parameters to decide which op-amp is better, so why not use video op-amps??
😕
Video opamps are often current feedback opamps -- so be mindful of their requirements, Texas Instruments has some good apnotes on this topic. Be very mindful of layout and bypassing.
noob with a filter question
I am looking at building a set of subs where the high point x-over will be handled by a dbx-120x-ds, but I need a circuit to keep the higher frequency one from stepping on the lower one. I believe this is called a low pass filter. I would like to build it myself as this is my first speaker project, but I have not found a low pass kit.
Any help, sources, diagrams, chip ideas, anything....
is VERY MUCH appreciated!😀😀
I am looking at building a set of subs where the high point x-over will be handled by a dbx-120x-ds, but I need a circuit to keep the higher frequency one from stepping on the lower one. I believe this is called a low pass filter. I would like to build it myself as this is my first speaker project, but I have not found a low pass kit.
Any help, sources, diagrams, chip ideas, anything....
is VERY MUCH appreciated!😀😀
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