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v1.3 SW4684 ultra-low resistance dual spdt analog switch 1 http://www.analogexpress.com november 2008 SW4684 ultra-low resistance dual spdt analog switch general description key specifications the SW4684 is an advanced cmos analog switch that operates from a single +1.8v to +5.5v supply. the d evice is a dual independent single pole double throw (spdt) sw itch featuring ultra-low r on of 0.5 for the normally closed (nc) switch, and 0.8 for the normally opened switch (no) at 2.7 v. the switch features break-before-make switching act ion with t on = 50ns and t off = 40ns at +3v. the digital logic inputs are 1.8v logic interface compatible with a +2.7v to +3. 3v supply. single supply operation high isolation low standby current low crosstalk 3db bandwidth at v cc = 5v features ultra low nc r on , 0.5 max at 2.7v ultra low no r on , 0.8 max at 2.7v low distortion, <0.14% thd full 0-vcc signal handling high continuous current capability applications mobile phones speaker switches power switches 1.8v to 5.5v -66db at 100khz <50na <-66db at 100khz 10mhz(typ) schematic diagram nc1 in1 com1 no1 vcc gnd nc2 in2 com2 no2 1 2 3 4 5 7 8 9 10 6 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0 1 2 3 4 5 vcom(v ) r on(ohm ) vcc=1.8 v vcc=2.0 v vcc=2.5 v vcc=3.0 v vcc=4.0 v vcc=5.0 v figure 1 ultra-low resistance dual spdt analog swit ch figure 2 on-resistance vs com voltage
SW4684 ultra-low resistance dual spdt analog switch 2 v1.3 http://www.analogexpress.com pin assignment SW4684d10-3 (bottom view) pin no. pin name type description 1 v cc i power supply 2 no1 i/o analog switch 1 normally open pin 3 com1 i/o analog switch 1 common pin 4 in1 i analog switch 1 digital control input 5 nc1 i/o analog switch 1 normally closed pin 6 gnd i ground 7 nc2 i/o analog switch 2 normally closed pin 8 in2 i analog switch 2 digital control input 9 com2 i/o analog switch 2 common pin 10 no2 i/o analog switch 2 normally open pin
v1.3 3 SW4684 ultra-low resistance dual spdt analog switch http://www.analogexpress.com pin assignment (cont) c b a 32 1 d SW4684cs10 (ball view) pin no. pin name type description a1 nc1 i/o analog switch 1 normally closed pin a2 gnd i ground a3 nc2 i/o analog switch 2 normally closed pin b1 in1 i analog switch 1 digital control input b3 in2 i analog switch 2 digital control input c1 com1 i/o analog switch 1 common pin c3 com2 i/o analog switch 2 common pin d1 no1 i/o analog switch 1 normally open pin d2 v cc i power supply d3 no2 i/o analog switch 2 normally open pin operation conditions parameter symbol min typ max unit power supply voltage v cc 1.8 5.5 v digital select input voltage v in gnd 5.5 v analog input voltage (nc, no, com) v is gnd v cc operating temperature range t a -55 125 c ordering information part number package marking + SW4684d10-3 10-lead dfn 3x3 (pb-free) a4684d wxyz SW4684cs10 10-ball csp10 (pb-free) 4684 wxyz + wxyz = assembly and date code
SW4684 ultra-low resistance dual spdt analog switch 4 v1.3 http://www.analogexpress.com absolute maximum ratings if military/aerospace specified devices are require d, please contact the analog express sales office/dist ributors for availability and specifications. supply voltage v cc storage temperature digital input voltage, v in continuous dc current, com to nc/no peak passing current, 10 duty cycle continuous dc current into device peak current into input clamp diodes at com/nc/no -0.5v to +7.0v -65c to +150c -0.5v < v in + 7.0v + 300ma + 500ma + 300ma + 500ma thermal resistance jc (dfn10 3x3) ja (dfn10 3x3) 55c/w 10c/w electrical characteristics the following specifications apply for the circuit shown in parametric measurement information, unless otherwise specified. limits apply for t a = 25c. symbol parameter conditions min typ max units v no , v nc , v com analog signal range 0 v cc v r on (nc) nc on-resistance v cc = 2.7v, i com = 100 ma, v nc =0 to v cc 0.4 0.5 r on (no) no on-resistance v cc = 2.7v, i com = 100 ma, v no =0 to v cc 0.4 0.8 ? r on on-resistance match between channels v cc = 2.7v, i com = 100 ma, v nc or v no =1.5v 1.11 60 m r flat(nc) nc-on-resistance flatness v cc = 2.7v, i com = 100 ma, v nc = 0 to v cc t j = -40c to 85c 0.1 0.25 r flat(no no on-resistance flatness v cc = 2.7v, i com = 100 ma, v no = 0 to v cc 0.18 0.35 -1 1 i no(off) or i nc(off) no or nc off leakage current v cc = 3.3v, v no or v nc = 3v, 0.3v; v com = 0.3v, 3v -10 10 na -2 2 i com (on) com on leakage current v cc = 3.3v, v no or v nc = 3v, 0.3v, or floating; v com = 3v, or floating -20 20 na dynamic characteristics bw -3 db bandwidth v cc = 3v, r l = 50 v in = 0 dbm 10 mhz 60 t on turn-on time v cc = 2.7v, v no or v nc = 1.5v; r l = 50 ; c l = 100 pf; 70 ns 40 t off turn-off time v cc = 2.7v, v no or v nc = 1.5v; r l = 50 ; c l = 100 pf; 50 ns t bbm break-before-make delay v cc = 2.7v, v no or v nc = 1.5v; r l = 50 ; c l = 100 pf; 2 ns q charge injection com = 0; r s = 0; c l = 1 nf; 200 pc
v1.3 5 SW4684 ultra-low resistance dual spdt analog switch http://www.analogexpress.com electrical characteristics the following specifications apply for the circuit shown in parametric measurement information, unless otherwise specified. limits apply for t a = 25c. dynamic characteristics (continous) symbol parameter conditions min typ max units v iso off-isolation r l = 50 ; c l = 5 pf; f = 100 khz -66 db v ct crosstalk -66 db digital i/o v ih input logic high 1.6 v v il input logic low 0.5 v i in in input leakage current v in = 0 or v cc -1 1 a power supply v cc power-supply range 1.8 5.5 v i cc supply current v cc = 5.5v 5 na
SW4684 ultra-low resistance dual spdt analog switch 6 v1.3 http://www.analogexpress.com typical performance characteristics no on resistance vs. com voltage nc on resistance vs. com voltage 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0 1 2 3 4 5 vcom(v) r on(ohm) vcc=1.8 v vcc=2.0 v vcc=2.5 v vcc=3.0v vcc=4.0 v vcc=5.0 v 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0 1 2 3 4 5 vcom(v ) r on(ohm) vcc=1.8v vcc=2.0 v vcc=2.5 v vcc=3.0v vcc=4.0v vcc=5.0 v logic threshold voltage vs. supply voltage charge injection vs. com voltage 0.0 0.5 1.0 1.5 2.0 0 1 2 3 4 5 6 vdd(v ) i n(v ) vin rising vin falling -300 -200 -100 0 100 200 300 0 1 2 3 4 5 6 vcom (q) frequency response @ v cc = 3v -8 -6 -4 -2 0 10 4 10 5 10 6 10 7 10 8 -80 -60 -40 -20 0 p hase [deg ] frequency[hz ] g ain [db ] gain @ vcc=3v; vin=0dbm phase @ vcc=3v; vin=0dbm
v1.3 7 SW4684 ultra-low resistance dual spdt analog switch http://www.analogexpress.com parametric measurement information figure 3 t on / t off time figure 4 break-before make delay figure 5 charge injection
SW4684 ultra-low resistance dual spdt analog switch 8 v1.3 http://www.analogexpress.com parametric measurement information figure 6 channel capacitance figure 7 off isolation figure 8 cross-talk
v1.3 9 SW4684 ultra-low resistance dual spdt analog switch http://www.analogexpress.com functional description the SW4684 is an ultra-low on-resistance dual analo g switch which can operate over a supply voltage ra nge of 1.8v to 5.5v. in application, the SW4684 is fully character ized to operate in 1.8v to 5.5v and feature very lo w on resistance and fast turn-off and turn-on times with break-before-make s witching. the switch operates asymmetrically; one terminal is normally closed (nc) and the other terminal normal ly opened (no). both nc and no terminals are connected to a common terminal (com). this configuration is ideal for app lications with asymmetric loads such as speaker handsets and inter nal speakers. application examples example for mobile phone with mp3 player mp3 player voice and melody generator vo1+ vo1- vo2+ vo2- vo1- vo1+ vo2- vo2+ speaker l speaker r + - + - sw_in sw_in sw_in sw_in note : when sw_in = vss, mp3 player?s stereo output will c onnect to speakers. when sw_in = vdd, voice and melody generator will c onnect to speakers.
SW4684 ultra-low resistance dual spdt analog switch 10 v1.3 http://www.analogexpress.com package dimensions dimensions in millimeter symbol min. nom. max. a 0.580 0.625 0.670 a1 0.215 0.235 0.255 a2 0.365 0.390 0.415 ? b 0.280 0.300 0.320 d 1.420 1.470 1.520 d1 0.500 e 1.870 1.920 1.970 e1 0.500 zd 0.210 ze 0.235
v1.3 11 SW4684 ultra-low resistance dual spdt analog switch http://www.analogexpress.com tape and reel drawing 10-ball csp
SW4684 ultra-low resistance dual spdt analog switch 12 v1.3 http://www.analogexpress.com tape and reel drawing
v1.3 13 SW4684 ultra-low resistance dual spdt analog switch http://www.analogexpress.com life support policy analog express?s products are not authorized for us e as critical components in life support devices or system without the express written appro val of the president and general counsel of analog express. as used herein: 1. life support devices or systems are devices or s ystems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure t o perform when properly used in accordance with ins tructions for use provided in the labeling, can be reasonably exp ected to result in a significant injury to the user . 2. a critical component is any component of a life support device or system whose failure to perform c an be reasonably expected to cause the failure of the lif e support device or system, or to affect its safety or effectiveness. analog express, inc. us tel: (1) 713 666 9459 hk tel: (852) 2823 9300 www.analogexpress.com email: sales@analogexpress.com

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