The CD4011 CMOS NANDgate has a typical input current of10 pA at room temperature. You cancharge a capacitor connected to thegate input with currents on the order ofhundreds of picoamperes and ...

In previous columns we’ve looked at TTL and CMOS logic devices in isolation. Things start to become interesting if we wish to use TTL and CMOS components in the same circuit. In previous columns we’ve ...