This is another quick adder that we found in an Electronic Design from the 80s. It also applies to any logic family.
Suggested by Mullard in an old documentation, this circuit is based on a common phototransistor and on...
Other series operationals such as the LM258, LM358 and LM2904 can be used on this circuit of the...
This configuration appears elsewhere on this site. This is from a 90’s Popular Electronics and is valid for...