FEATURES
2-Wire Serial Interface 2.7 V to 5.5 V Single Supply 2.5 ⍀ On Resistance 0.75 ⍀ On-Resistance Flatness 100 pA Leakage Currents Single 8-to-1 Matrix Switch ADG728 Dual 4-to-1 Matrix Switch ADG729 Power-On Reset Small 16-Lead TSSOP Package APPLICATIONS
Data Acquisition Systems Communication Systems Relay Replacement Audio and Video Switching Automatic Test Equipment CMOS, Low-Voltage, 2-Wire Serially-Controlled, Matrix Switches ADG728/ADG729 FUNCTIONAL BLOCK DIAGRAMS ADG728 S1 S1A DA S4A D S1B DB S8 INPUT SHIFT REGISTER RESET SDA SCL A0 A1 SDA SCL A0 A1 S4B INPUT SHIFT REGISTER ADG729 GENERAL DESCRIPTION
PRODUCT HIGHLIGHTS On resistance is closely matched between switches and very flat over the full signal range. 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.