MAX4638

` Guaranteed RON 3.5 (+5V or ±2.5V Supplies) 6 (+3V Supply)
` Guaranteed 0.4 RON Match Between Channels
` Guaranteed 1 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)

(Voltages Referenced to GND)
V+ to V- .................................................................................+6V
V+, A_, EN ................................................................-0.3V to +6V
V- .............................................................................+0.3V to -6V
NO_, COM_ (Note1) ..................................... -0.3V to (V+ + 0.3V)
Continuous Current A_, EN ............................................. ±30mA
Continuous Current NO_, COM_ .................................... ±100mA
Peak Current (NO_, COM_)
(pulsed at 1ms, 10% duty cycle) ................................... ±200mA
Continuous Power Dissipation (TA = +70°C)
16-Pin QFN (derate 18.5mW/°C above +70°C) .......... 1481mW
16-Pin TSSOP (derate 5.7mW/°C above +70°C) .......... 457mW
16-Pin SO (derate 8.70mW/°C above +70°C) .............. 696mW
20-Pin QFN (derate 20mW/°C above +70°C) ............. 1600mW
Operating Temperature Range
MAX463_E_ E ................................................... -40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range ......................... -65°C to +150°C
Lead Temperature (soldering, 10s) ............................... +300°C
Note 1: Signals on COM_, NO_ exceeding V+ or V- are clamped by internal diodes. A_ and EN are clamped only to V- and can exceed V+ up to their maximum ratings. Limit forward-diode current to maximum current rating.

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 3.5 on-resistance (RON) when powered with a single +5V supply and have -75dB of 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. The MAX4638 is available in small 16-pin QFN, TSSOP and SOIC packages, as well as a 20-pin QFN package.