Method and apparatus including a driver for driving a floating bipolar switch

A switch for switchably coupling a signal source to a high impedance load. The switch includes a first bipolar transistor and a floating switch driver. The first bipolar transistor is configured to switchably couple the signal source to the high impedance load responsive to a driver signal applied to a base thereof. The floating switch driver has a control input and an output terminal coupled to the base of the first bi-polar transistor to supply the driver signal thereto. The driver signal comprises a limited forward current during the "On" state of the floating switch driver and a voltage "Voff" not less than the reverse breakdown voltage nor greater than the forward voltage drop across a base-emitter connection of the first bipolar transistor during the "Off" state of the floating switch driver.