For opamp power supply filtering and bypass, what value of electrolytic cap should be used? I had done a search, but was not fruitful, thus posting the question here.
Considering the opamp is to be used in CDP filter/output stage, pre-amp, filter & phono stage.
I have come across recommendation of using 1000uF for this application. I have seen designs that use 4700uF of electrolytic cap. There are datasheets that indicated 2.2uf Tantalum caps to be used. In most of the CDPs, 100-220uF of electrolytic caps is usually used.
I presumed that the value of the cap should be as large as possible. Besides the limitation of space, cost, etc, what would the optimal value of electrolytic cap to be used for this application? As in further increase in capacitance value does not bring about much significance improvement in performance. Of course, a film cap/s by-passing should be added on top of the E cap.
What if the bypassing is done without the Electrolytic cap, a large film is used instead? What value of film cap should be use?
Does anyone with experience in this aspect that can share with me?
Thanks in advance
Jack
Considering the opamp is to be used in CDP filter/output stage, pre-amp, filter & phono stage.
I have come across recommendation of using 1000uF for this application. I have seen designs that use 4700uF of electrolytic cap. There are datasheets that indicated 2.2uf Tantalum caps to be used. In most of the CDPs, 100-220uF of electrolytic caps is usually used.
I presumed that the value of the cap should be as large as possible. Besides the limitation of space, cost, etc, what would the optimal value of electrolytic cap to be used for this application? As in further increase in capacitance value does not bring about much significance improvement in performance. Of course, a film cap/s by-passing should be added on top of the E cap.
What if the bypassing is done without the Electrolytic cap, a large film is used instead? What value of film cap should be use?
Does anyone with experience in this aspect that can share with me?
Thanks in advance
Jack