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.
This 500 V line current monitor with the LTC6101 was obtained from Linear Technology's own 2005...
This solar powered circuit was found in a 1991 documentation. The transistor is a general purpose...
This circuit for measuring bridges was found in the October 1995 issue of Electronics Now...