Digital Inverter:

Inverter carry out the function of logic negation or output voltage V₀ is the inverse or complement of the input voltage V_i or it is also termed as NOT logic gate.

Figure (a) depicts the switch configuration for realization of a Digital Inverter. Whereas input is low, the switch is connected to V_cc, and the output is high. Whereas the input is high, the switch is connected to the ground and the output is low as list in the form a truth table as shown in Figure (b). The symbol for Digital Inverter is drawn in Figure (c).

(a)                                   (b)                                     (c)

Figure: (a) Switch Configuration, (b) Truth Table, and (c) Symbol of a Digital Inverter