Abstract:
A voltage level shifting device for driving a capacitive load has an input terminal for receiving a first input signal switchable between a first logic state corresponding to a first reference voltage and a second logic state corresponding to a second reference voltage, and an output terminal for supplying an output signal switchable between a first logic state corresponding to a third reference voltage and a second logic state corresponding to a fourth reference voltage. The device also has a first electronic circuit that is activated following a commutation of the first input signal from the first reference voltage to the second reference voltage for fixing the output terminal to the fourth reference voltage. The device further has a second electronic circuit that is activated following a commutation of the first input signal from the second reference voltage to the first reference voltage.
Abstract:
Differential output stage (200) of an amplification device, for driving a load, comprises a first (201) and a second (202) differential output stage portion. The first differential output stage portion (201) comprises: a first (M1PSW) and a second (M1NSW) output circuit; a first driving circuit (210) comprising a first biasing circuit (M2P, M3N, M4N, R11, I11); a second driving circuit (220) comprising a second biasing circuit (I41, R41, M4P, M3P, M2N). The first differential output stage portion (201) comprises: a third output circuit (M2PSW) connected between a first node (N1) of said first biasing circuit (M2P, M3N, M4N, R11, I11) and a first differential output terminal (01), having a third driving terminal (DT3) connected to a first driving terminal (DT1); a fourth output circuit (M2NSW) connected between a first node (N4) of the second biasing circuit (I41, R41, M4P, M3P, M2N) and the first differential output terminal (01), having a fourth driving terminal (DT4) connected to a second driving terminal (DT2).