Hello, this is my first post on this forum. I'm a mechanical engineer. I've built some simple circuits before, but I'm really an "outsider" in the world of electronics. This is my problem: I have a circuit with an output signal that is 0-10 VDC, with a maximum current of 1 mA. I need to feed this signal to another circuit that requires a much higher current, maybe as high as 500 mA. I've been researching, and what I think I need is called a unity gain voltage follower, or voltage buffer. It is not terribly important that the output voltage exactly match the input voltage, so long as they are with 2-3% of each other. I saw some articles showing a very simple schematic using an op amp. The part where I'm stumped is finding an op amp that can handle 500 mA. So, am I looking at the wrong type of circuit? Any suggestions? Also, is there any commercially available product that can do this and that comes in an enclosure with electrical connections, so I don't have to build a bunch of circuits and mount them in a box and all that? (I might need 20). Thanks in advance.
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