MAX4639ETE+T

The MAX4638/MAX4639 are single 8:1 and dual 4:1 CMOS analog multiplexers/demultiplexers (muxes/demuxes). Each mux operates from a single +1.8V to +5V supply or dual ±2.5V supplies. These devices feature 3.5Ω on-resistance (RON) when powered with a single +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. They feature a -3dB 85MHz bandwidth and a guaranteed 0.25nA leakage current at +25°C. A +1.8V to +5.5V operating range makes the MAX4638/ MAX4639 ideal for battery-powered, portable instruments. All channels guarantee break-before-make switching. These parts feature bidirectional operation and can handle Rail-to-Rail analog signals. All control inputs are TTL/CMOS-logic compatible. Decoding is in standard BCD format, and an enable input is provided to simplify cascading of devices. These devices are available in small 16-pin TQFN, TSSOP, and SO packages, as well as a 20-pin TQFN package.

Applications

• Automatic Test Equipment
• Low-Voltage Data-Acquisition Systems
• Audio and Video Signal Routing
• Medical Equipment
• Battery-Powered Equipment
• Relay Replacement

Key features

• Guaranteed RON 3.5Ω (+5V or ±2.5V Supplies), 6Ω (+3V Supply)
• Guaranteed 0.4Ω RON Match Between Channels
• Guaranteed 1Ω RON Flatness Over Signal Range
• Guaranteed Low Leakage Currents 0.25nA at ±25°C
• Switching Times: tON = 18ns, tOFF = 7ns
• +1.8V to +5.5V Single-Supply Operation, ±2.5V Dual-Supply Operation
• Rail-to-Rail Signal Handling
• TTL/CMOS-Logic Compatible
• Crosstalk: -80dB (1MHz)
• Off-Isolation: -60dB (10MHz)