DESCRIPTION
The LTC®1380/LTC1393 are CMOS analog multiplexers with SMBus® compatible digital interfaces. The LTC1380 is a single-ended 8-channel multiplexer, while the LTC1393 is a differential 4-channel multiplexer. The SMBus digital interface requires only two wires (SCL and SDA). Both the LTC1380 and the LTC1393 have four hard-wired SMBus addresses, selectable with two external address pins. This allows four devices, each with a unique SMBus address, to coexist on one system and for four devices to be synchronized with one stop bit.

FEATURES
■ Micropower Operation: Supply Current = 20µA Max
■ 2-Wire SMBus Interface
■ Single 2.7V to ±5V Supply Operation
■ Expandable to 32 Single or 16 Differential Channels
■ Guaranteed Break-Before-Make
■ Low RON: 35Ω Single Ended/70Ω Differential
■ Low Charge Injection: 20pC Max
■ Low Leakage: ±5nA Max
■ Available in 16-Lead SO and GN Packages

APPLICATIONS
■ Data Acquisition Systems
■ Process Control
■ Laptop Computers
■ Signal Multiplexing/Demultiplexing
■ Analog-to-Digital Conversion Systems