Abstract: The circuit has a push-pull end stage which acts as an amplifier stage for digital signals. The push-pull end stage has two n-channel MOS transistors which function as source followers and two p-channel MOS transistors which also function as source followers. The gate terminals of the respective n-channel MOS transistors and p-channel MOS transistors are each controlled by an operational amplifier through drivers. A voltage that determines the setpoint value of the high level of the output of the push-pull end stage is present at the non-inverting input of one operational amplifier and a voltage that determines the low level of the output of the push-pull end stage is present at the inverting input of the other operational amplifier.