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LTC1391 - 8-Channel Analog Multiplexer with Cascadable Serial Interface

The LTC®1391 is a high performance CMOS 8-to-1 analog multiplexer. It features a serial digital interface that allows several LTC1391s to be daisy-chained together, increasing the number of MUX channels available using a single digital port.

The LTC1391 features a typical RON of 45 Ohm, a typical switch leakage of 50pA and guaranteed break-beforemake operation. Charge injection is ±10pC maximum. All digital inputs are TTL and CMOS compatible when operated from single or dual supplies. The inputs can withstand 100mA fault current.

The LTC1391 is available in 16-pin PDIP, SSOP and narrow SO packages. For applications requiring 2-way serial data transmission, see the LTC1390 data sheet.

Features Low RON: 45 Ohm Single 2.7V to ±5V Supply Operation Low Charge Injection Serial Digital Interface Analog Inputs May Extend to Supply Rails Low Leakage: ±5nA Max Guaranteed Break-Before-Make TTL/CMOS Compatible for All Digital Inputs Cascadable to Allow Additional Channels Can Be Used as a Demultiplexer Typical Application

Applications Data Acquisition Systems Communication Systems Signal Multiplexing/Demultiplexing Packaging

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