general description the MAX4901?ax4905 switches feature negative signal capability that allows signals below ground to pass through without distortion. the MAX4901/max4902 are a dual spst (single-pole/single-throw) and the max4903/max4904/max4905 are a single spdt (single- pole/double-throw) configuration. these analog switches operate from a single +1.8v to +5.5v supply and have low 0.6 ? on-resistance, making them ideal for switching audio signals.the max4905 includes a comparator that can be used for headphone detection or mute/send key function. the max4902/max4904/max4905 have internal shunt resis- tors to automatically discharge any capacitance at the no_ and nc connection points. this reduces click-and- pop sounds that occur when switching audio signals between pre-charged points. a break-before-make fea- ture and auto-discharge also help to reduce popping. these spst and spdt switches are available in space-saving 8-pin tdfn and 9-bump ucsp pack- ages and operate over the -40? to +85? extended temperature range. applications features ? distortion-free signal throughput down to v cc - 5.5v ? comparator for headphone or mute detection (max4905) ? clickless switches with internal shunt resistors(max4902/max4904/max4905) ? 0.6 ? (typ) low on-resistance (r on ) ? 0.25 ? on-resistance flatness ? +1.8v to +5.5v supply voltage ? 0.04% thd MAX4901?ax4905 low-r on , dual-spst/single-spdt clickless switches with negative rail capability ________________________________________________________________ maxim integrated products 1 19-3775; rev 2; 5/06 for pricing, delivery, and ordering information, please contact maxim/dallas direct! at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com. ordering information/selector guide part pin-package top mark configuration comparator shunt pkg code MAX4901 ebl-t 1.5m m x 1.5m m 9 u c s p - 9 aeu 2 x spst no no b9-1 MAX4901eta-t 8 td fn - 8 aow 2 x spst no no t833-2 max4902 ebl-t 1.5m m x 1.5m m 9 u c s p - 9 aev 2 x spst no yes b9-1 max4902eta-t 8 td fn - 8a ox 2 x spst no yes t833-2 max4903 ebl-t 1.5m m x 1.5m m 9 u c s p - 9 aey 1 x spdt no no b9-1 max4903eta-t 8 td fn - 8a oy 1 x spdt no no t833-2 max4904 ebl-t 1.5m m x 1.5m m 9 u c s p - 9 aew 1 x spdt no yes b9-1 max4904eta-t 8 td fn - 8a oz 1 x spdt no yes t833-2 max4905 ebl-t 1.5m m x 1.5m m 9 u c s p - 9 aex 1 x spdt yes yes b9-1 max4905eta-t 8 td fn - 8 apa 1 x spdt yes yes t833-2 note: all devices operate over the -40? to +85? operating temperature range. ucsp is a trademark of maxim integrated products, inc. pin configurations 3 x 3 ucsp MAX4901/max4902 123 b c a b c a top view bumps on bottom com1 no1 in1 v cc n.c. gnd com2 no2 in2 3 x 3 ucsp max4903/max4904/max4905 123 v cc no in com n.c. (cmpo) gnd n.c. nc n.c. (cmp-) ( ) max4905 only pin configurations continued at end of data sheet. cell phonespdas and handheld devices notebook computersmp3 players downloaded from: http:///
MAX4901?ax4905 low-r on , dual-spst/single-spdt clickless switches with negative rail capability 2 _______________________________________________________________________________________ absolute maximum ratings stresses beyond those listed under ?bsolute maximum ratings?may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. (all voltages referenced to gnd.)v cc , in_, cmp-......................................................-0.3v to +6.0v com_, no_, nc ................................(v cc - 6v) to (v cc + 0.3v) cmpo .........................................................-0.3v to (v cc + 0.3v) open-switch continuous current no_, nc (max4902/max4904/max4905)...................................?0ma closed-switch continuous current com_, no_, nc.....?00ma peak current com_, no_, nc (pulsed at 1ms, 50% duty cycle)................................?00ma peak current com_, no_, nc (pulsed at 1ms, 10% duty cycle)................................?00ma continuous power dissipation (t a = +70?) 8-pin tdfn (derate 18.2mw/? above +70?) .........1455mw 9-bump ucsp (derate 5.2mw/? above +70?).........412mw esd method 3015.7 .............................................................?kv operating temperature range ...........................-40? to +85? junction temperature ......................................................+150? storage temperature range .............................-65? to +150? lead temperature (soldering, 10s) .................................+300? bump temperature (soldering) infrared (15s) ...............................................................+220? vapor phase (60s) .......................................................+215? electrical characteristics(v cc = +2.7v to +5.5v, t a = -40? to +85?, unless otherwise noted. typical values are at v cc = +3.0v, t a = +25?, unless other- wise noted.) (note 1) parameter symbol conditions min typ max units power supply power-supply range v cc 1.8 5.5 v MAX4901 |