The QS3VH251 HotSwitch Quad 2:1 multiplexer/demultiplexer is a high bandwidth bus switch with very low ON resistance, resulting in under 250ps propagation delay through the switch. The combination of near-zero propagation delay, high OFF impedance, and over-voltage tolerance makes the QS3VH251 ideal for high performance comminucation applications. The QS3VH251 operates from -40C to +85C.