- Bipolar junction diodes. Rectifier and limiting circuits; 2. bipolar junction transistors (BJT). Transistor amplifier circuits. Differential pairs. Current sources. Multi-stage amplifiers; 3. Field effect transistors (MOSFET and JFET). CMOS Amplifier circuits; 4. basic logic circuits in CMOS technology; 5. the ideal operational amplifier. Circuit analysis with operational amplifiers. Non-ideal characteristics of operational amplifiers.