We found this circuit in the 1990 Motorola Linear Databook. The circuit must use symmetric source and has 10times the voltage gain.
A frequency range determined by the network of resistors and capacitors with negative feedback and input...
In the figure we have a low-pass filter, with a cutoff frequency of 10 kHz, also suggested by...
In the figure we have the way to use the comparator LM339 and others of the same series with the...