This circuit is from the 1983 Intersil Databook. The circuit has an A / D converter for display of 4 and a half digits being powered by a voltage of 9 V.
In the figure we have the way to adjust the output null of an operational. The configuration...
The circuit shown was found in the 1994 National Semiconductor's Linear Application Handbook. The...
This article is old, from 1994. But, for those who have an old PC and want to use a joystick from...