Hello guys, I need some help here.
I'm using a high gain amplifier sourced with a 5V split regulated power supply. For some reason I don't know, I get a 41kHz signal of 1.69V amplitude at the negative power line.
Here is the circuit:
First stage is preamplifier, then comes two filters and the last one is another amplifier. This noise is getting amplified at the output.
I'm using a high gain amplifier sourced with a 5V split regulated power supply. For some reason I don't know, I get a 41kHz signal of 1.69V amplitude at the negative power line.
Here is the circuit:
First stage is preamplifier, then comes two filters and the last one is another amplifier. This noise is getting amplified at the output.