A system for operating a transducer comprising, a first node connected to a first transducer, a first photo-activated switching device having a first source, a first drain connected to the first node, and a first gate operative to receive a first logic signal, a first terminal connected to the first source; a second photo-activated switching device having a second source connected to the first node, a second drain, and a second gate operative to receive a second logic signal, and a second terminal connected to the second drain.