The MPC100 consists of four identical monolithic integrated open-loop buffer amplifiers, which are connected internally at the output. The unidirectional transmission path consists of bipolar complementary buffers, which offer extremely high output-to-input isolation. The MPC100 multiplexer enables one of the four input channels to connect to the output. The output of the multiplexer is in a high-impedance state when no channel is selected. When one channel is selected with a digital "1" at the corresponding SEL-input, the component acts as a buffer with high input impedance and low output impedance.