Advantages disadvantages and applications of FET over BJT
Advantages, disadvantages and application of FET over BJT Advantages 1. FET gas high input impedance of several mega ohms. 2. The noise produced by a FET is less than that produced by a BJT. 3. FETs are less effect by radiation compared to BJT. 4. FET has no offset voltage at zero drain current and hence it forms an excellent signal chopper. 5. FETs are voltage controlled devices. 6. FETs have better thermal stability. 7. In the integrated circuit form FET is simpler to fabricate and it occupies less – space. Disadvantages FETs have a drawback of smaller gain bandwidth product compared to BJT. Applications The high input impedance and low output impedance and low noise level make FET for superior of the bipolar transistor. Some of t...