ADG1438

Data Sheet Serially Controlled, ±15 V/+12 V/±5 V, 8-Channel/ 4-Channel, iCMOS Multiplexers/Matrix Switches ADG1438/ADG1439 FEATURES Serial interface up to 50 MHz SDO daisy-chaining option 9.5 Ω on resistance at 25°C 1.6 Ω on-resistance flatness Fully specified at ±15 V/+12 V/±5 V 3 V logic-compatible inputs Rail-to-rail operation 20-lead TSSOP and 20-lead, 4 mm × 4 mm LFCSP APPLICATIONS Relay replacement Audio and video routing Automatic test equipment Data acquisition systems Temperature measurement systems Avionics Battery-powered systems Communication systems Medical equipment GENERAL DESCRIPTION The ADG1438 and ADG1439 are CMOS analog matrix switches with a serially controlled 3-wire interface. The ADG1438 is an 8-channel matrix switch, and the ADG1439 is a dual 4-channel matrix switch. The ADG1438/ADG1439 use a versatile 3-wire serial interface that operates at clock rates of up to 50 MHz and is compatible with standard SPI, QSPI™, MICROWIRE™, and DSP interface stand...