FET Configurations:

FETs (JFETs and MOSFETs) have three configurations just as BJTs have. The three FET Configurations—the common gate, common source, and common drain configuration have been given in Fig. 13.11.

FET Configurations

Input and output terminals of different configurations have been given in Table 13.1

TABLE 13.1    FET Configurations

Configuration Input Terminal Output Terminal
Common gate Source Drain
Common source Gate Drain
Common drain Gate Source

TABLE 13.2    FET-BJT Correspondence

FET Configuration BJT Configuration
Common gate Common base
Common source Common emitter
Common drain Common collector

The three FET configurations have characteristics that are similar to the three corresponding BJT configurations, as given in Table 13.2.