I'm trying to design a simple metering circuit. The amp output can swing a bit higher than the 5532 being used as a buffer input to the meter circuit. Using a simple voltage divider (even high values like 100k/100k) before the buffer would kind of defeat the purpose of the buffer wouldn't it? Is there a better way to do this so that the driving amp still sees the gargantuan input impedance of the 5532 and not the load of the voltage divider resistance?
I guess practically speaking, just about any amp wouldn't care about a 100k load, but I keep thinking there must be a better way to do this.
I guess practically speaking, just about any amp wouldn't care about a 100k load, but I keep thinking there must be a better way to do this.