This circuit is from the 1983 Intersil Databook. In it we have the use of the ICL7135 as an AD converter for a 4 and a half digits multiplexed display. The circuit can be found in many commercial instruments.

This circuit is from the 1983 Intersil Databook. In it we have the use of the ICL7135 as an AD converter for a 4 and a half digits multiplexed display. The circuit can be found in many commercial instruments.