Low-power consumption BI-CMOS circuit formed by a small number of circuit components.

摘要

A bi-CMOS circuit has an emitter-coupled logic circuit (11) responsive to an input signal (Vin) for producing a logic signal (X) and the complementary logic signal (CX), an emitter follower (Q14) responsive to the logic signal (X) for changing the voltage level at the emitter node (N12) thereof and a switching circuit (Qp3/Qn3) coupled between the emitter follower (Q14) and a negative power voltage line and responsive to the complementary logic signal (CX) for selectively coupling the emitter node (N12) and the negative power voltage line with an output node (N13) of the bi-CMOS circuit so that through-current does not flow through the switching circuit.