Buffer for AD converters (CB9318E)

This circuit was obtained from Linear Technology documentation from the 90's. The circuit uses company components.

Low voltage indicator (CB9550E)
This circuit indicates when the voltage of a 12 V battery is low. With changes, for example, the...
Ultra Miniaturized FM Transmitter (CB14873E)
If mounted with SMD components, this transmitter will be so small that it can be installed inside a...
3-State Tone Generator (CB18648E)
This circuit generates some very interesting tone forms having been found in an American...