Institute Newton C. Braga

Picoammeter (CB9661E) This circuit is designed to measure very weak currents, in the order of picoamperes. We found it in an American documentation from the 80s. The integrated circuit is from that time. a h
Picoammeter (CB9661E) This circuit is designed to measure very weak currents, in the order of...
400 kHz Oscillator (CB18550E)
We found this circuit in a Japanese documentation from the 1960s. The frequency depends on the...
Parallel Port Insulated Buffer (CB15663E)
This circuit is ideal for the design of interfaces and shields, as it allows total isolation of...