1. The described multiplier is basedon the variable transconductance principle.

2. Did you ever have a chance to read my paper on thermionic transconductance?

3. To calculate gain and transconductance , refer to the SENSE pin on fixed voltage parts.

4. In one embodiment a second operational transconductance amplifier amplifies the notch filter output.

5. To obtain an exactly defined pole the load of the operational transconductance amplifier (OTA) is a capacitor.

6. The large transconductance and the high transit frequency of the bipolar transistor allows the realization of precision analog baseband circuits and of RF-circuits capable to operate at frequencies up to several GHz.