The gain of this amplifier is given by the components indicated in the formulas next to the diagram. The power supply must be symmetrical and equivalent operational amplifiers can be used.
We found this circuit in a technical documentation from the National Semiconductor of 1994. The...
In the figure we have the way to implement the E (AND) function with two inputs, in the case of...
Found in an Electronic Design from the 90's, this circuit supplies voltages of 5 V and 3.6 V from...