Abstract: To provide a load drive circuit that has a satisfactory phase characteristic and can be realized as a low-price LSI chip. A series circuit of nonlinear resistive elements (P2 and N3) and switch elements (N2 and P3) is inserted between control input terminals (GP1 and GN1) of output elements (P1 and N1) of a final amplifier (AMP0) and an output terminal (OUT) of the load drive circuit. The nonlinear resistive element has a nonlinear characteristic in which a resistance value decreases as an applied voltage value increases and the resistance value increases as the applied voltage value decreases. The switch elements are switching-controlled to selectively come into an ON state only in a high-electric potential period or a low-electric potential period of an input signal according to whether the output element is arranged on a high-electric potential side or a low-electric potential side in the final amplifier.

Abstract: To provide a load drive circuit that has a satisfactory phase characteristic and can be realized as a low-price LSI chip. A series circuit of nonlinear resistive elements (P2 and N3) and switch elements (N2 and P3) is inserted between control input terminals (GP1 and GN1) of output elements (P1 and N1) of a final amplifier (AMP0) and an output terminal (OUT) of the load drive circuit. The nonlinear resistive element has a nonlinear characteristic in which a resistance value decreases as an applied voltage value increases and the resistance value increases as the applied voltage value decreases. The switch elements are switching-controlled to selectively come into an ON state only in a high-electric potential period or a low-electric potential period of an input signal according to whether the output element is arranged on a high-electric potential side or a low-electric potential side in the final amplifier.