The ADG658 and ADG659 are low voltage, CMOS analog multiplexers comprised of eight single channels and four differential channels, respectively. The ADG658 switches one of eight inputs (S1S8) to a common output, D, as determined by the 3-bit binar y address lines A0, A1, and A2. The ADG659 switches one of four differential inputs to a common differential output, as determined by the 2-bit binar y address lines A0 and A1. An EN input on both devices is used to enable or disable the device. When disabled, all channels are switched off. These parts are designed on an enhanced process that provides lower power dissipation yet gives high switching speeds. These parts can operate equally well as either multiplexers or