Analogue switch integrated in bipolar or MOS technology - 1 has two amplifiers each with open collector output stages which are activated in opposed phase to each other by control signal

摘要

The analogue switch includes two amplifiers, each of which include an open collector output stage. The outputs of the two differential amplifiers (6,7) are coupled together and are connected to a resistor (10) which is coupled to the supply line (1). One of the amplifiers is driven by an input signal (24) and the other amplifier is driven by a reference potential (3). The open collector output stages are activated or deactivated in opposed phase to each other by a control signal (25). ADVANTAGE - Has sign reversal and higher precision.