Found in Analog Devices documentation, this circuit is used in measurement bridges to linearize the signals when approaching equilibrium. Formulas are given next to the diagram.
Found in a 90s Popular Electronics, this circuit is interspersed between the filter and the...
This circuit is from an 80's documentation. The integrated circuit is from the time and the...
This circuit was found in a 80s American documentation. The zener diodes determine the points of...