With this circuit, from an old operational datasheet, it is possible to measure the CMRR, rejection in common mode of an operational one. The power supply must be symmetrical.
Found in Popular Electronics from the 90s, this circuit can employ other low power audio...
We found this circuit in the same publication as the previous one (CB18947E). The circuit uses two...
Found in a manual of integrated circuits from the 90s, this circuit makes use of that time...