MAX14778ETP+T

The MAX14778ETP+T is a dual ±25V above and below the rails 4:1 analogue multiplexer in 20 pin TQFN package. Each multiplexer has separate control inputs to allows independent switching which makes the device ideal for multiplexing different communications signals with the same connector pins. Extended ESD protection of ±6KV (Human Body Model) enable direct interfacing to cables and connectors. The MAX14778 features a low 1.5ohm (max) on-resistance and 3mohm (typ) flatness to maximize signal integrity over the entire common-mode voltage range. Each multiplexer can carry up to 300mA of continuous current through the multiplexer in either direction. The MAX14778 supports switching of full-speed USB 1.1 signals (12Mbps) and RS485 data rates of up to 20Mbps. Typical applications include RS485/RS232/USB 1.1 multiplexing, POS peripherals, audio/data multiplexing, connector sharing and gaming machines.

• Supply voltage range is 3V to 5.5V
• Operating temperature range from -40°C to 85°C
• Input capacitance is 78pF
• Large signal bandwidth is 75MHz
• Supports analogue signals up to ±25V

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