Instrumentation Amplifier (CB7825E)

Suggested by National Semiconductor, this circuit can be applied to almost any operational amplifier. The input resistance is extremely high.

| Clique na imagem para ampliar |

Current to voltage converter (CB7332E)
This circuit is from a Popular Electronics from the 90s. The integrated circuit admits equivalents...
Hall Lamp Timer (CB16406E)
This very interesting project was obtained in a 1980 publication. It consists of a device that is...
Freezer Alarm (CB1281E)
This circuit beeps when the sensor is triggered by the opening of the freezer door or other...