The circuit shown is from the November 1996 Electronics Now magazine. The basic circuit is in the previous 3 sections of this section. The circuit measures resistances up to 2M ohms.
This VCA was found in the July 1988 issue of Radio Electronics magazine. It uses an OTA op amp and...
This configurable CMOS configuration for frequencies up to a few megahertz was obtained in an...
The purpose of this 2005 circuit is to demonstrate in a very simple way the principle of operation of a...