The ADG728 is a CMOS analog matrix switch with a serially controlled 2-wire interface. It is an 8-channel matrix switch. On resistance is closely matched between switches and very flat over the full signal range. This part can operate equally well as a multiplexer, demultiplexer or switch array and the input signal range extends to the supplies. The ADG728 and ADG729 utilize a 2-wire serial interface that is compatible with the I2C™ interface standard. Both have two external address pins (A0 and A1). This allows the 2 LSBs of the 7-bit slave address to be set by the user. Four of each of the devices can be connected to the one bus. The ADG728 also has a RESET pin that should be tied high if not in use. Each channel is controlled by one bit of an 8-bit word. This means that these devices may be used in a number of different configurations; all, any, or none of the channels may be on at any one time. On power-up of the device, all switches will be in the OFF condition and the internal shift register will contain all zeros. All channels exhibit break-before-make switching action preventing momentary shorting when switching channels. The ADG728 and ADG729 are available in 16-lead TSSOP packages. PRODUCT HIGHLIGHTS * 2-Wire Serial Interface. * Single Supply Operation. The ADG728 and ADG729 are fully specified and guaranteed with 3 V and 5 V supply rails. * Low On Resistance 2.5 Ω typical. * Any configuration of switches may be on at any one time. * Guaranteed Break-Before-Make Switching Action. * Small 16-Lead TSSOP Package. APPLICATIONS * Data Acquisition Systems * Communications Systems * Relay Placement * Audio and Video Switching * Automatic Test Equipment * 2-Wire Serial Interface * 2.7 V to 5.5 V Single Supply * 2.5 Ω On Resistance * 0.75 Ω On-Resistance Flatness * 100 pA Leakage Currents https://elecena.pl/product/194249/cmos-low-voltage-2-wire-serially-controlled-single-8-to-1-matrix-switch 2007-02-22 https://elecena.pl/product/194249/cmos-low-voltage-2-wire-serially-controlled-single-8-to-1-matrix-switch 2018-03-28 https://elecena.pl/product/194249/cmos-low-voltage-2-wire-serially-controlled-single-8-to-1-matrix-switch 2025-01-17