The MAX4638/MAX4639 are single 8:1 and dual 4:1CMOS analog multiplexers/demultiplexers (muxes/demuxes). Each mux operates from a single +1.8V to+5V supply or dual ±2.5V supplies. These devices feature3.5Ω on-resistance (RON) when powered with asingle +5V supply and have -75dB off-isolation and-85dB crosstalk from the output to each off channel.The switching times are 18ns tON and 7ns tOFF. Theyfeature a -3dB 85MHz bandwidth and a guaranteed0.25nA leakage current at +25°C.
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