I am using the MCP601 for rectification of small AC signals. I got it working.
I understand is has something to do with the chip spending too long in saturation and can't catch up. I also heard that you can get a faster OP AMP in terms of slew rate and it would fix the problem as well.
But shouldn't this OP AMP Already be suitable as the Slew rate equation is \$2*\pi*F\$
if we do the math
\$SR = 2*\pi * 20kHz\$
\$SR = 0.1256V/uS\$ the op amp is stated for 2.3V/uS ?
Can anyone explain to me why is this is happening with this op amp? and why isnt the current slew rate satisfactory enough for this current application.