These multiplexer circuits dissipate extremely low quiescent power over the full VCC -GND and VCC - VEE supply-voltage ranges, independent of the logic state of the control signals. When a logic "1"is present at the ENABLE input terminal all channels are off. The IW4051B is a single 8-channel multiplexer having three binary control inputs, A,B and C, and an ENABLE input. The three binary signals select 1 of 8 channels to be turned on, and connect one of the 8 inputs to the output.