hello guys. is there anyone who can tell me who is the manufacturer of IC 2059 op amp, or tell me where i can find the datasheet. i want to assemble the Rane SM82 Stereo line mixer. is it worth it? or there is a better one i can make? thanks in advance
It is the NJM2059, made by New Japan Radio (a.k.a. JRC: Japan Radio Corperation). You can download the datasheet here.
Note that you can substitute almost any quad opamp for this one; you are not limited to using the 2059 if you don't want to. You could try the National's LM837 which is very inexpensive but not bad, or the OPA4134 or OPA4132 from Burr-Brown (Texas Instruments), both of which are excellent.
Since you are working from a schematic, you don't even have to use quad opamps. You could design your PCB to use dual opamps. Then you have a much wider choice of devices.
Note that you can substitute almost any quad opamp for this one; you are not limited to using the 2059 if you don't want to. You could try the National's LM837 which is very inexpensive but not bad, or the OPA4134 or OPA4132 from Burr-Brown (Texas Instruments), both of which are excellent.
Since you are working from a schematic, you don't even have to use quad opamps. You could design your PCB to use dual opamps. Then you have a much wider choice of devices.
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