pin configurations/functional diagrams/truth tables ___________________________________________________ ____________________________________ 1 general description maxim? redesigned dg441/dg442 analog switchesnow feature on-resistance matching (4 max) between switches and guaranteed on-resistance flatness overthe signal range (9 max). these low on-resistance switches conduct equally well in either direction. theyguarantee low charge injection (10pc max), low power consumption (1.65mw), and an esd tolerance of 2000v minimum per method 3015.7. the new design offers lower off-leakage current over temperature (less than 5na at +85?). the dg441/dg442 are quad, single-pole/single-throw (spst) analog switches. the dg441 has four normally closed switches, and the dg442 has four normally open switches. switching times are less than 250ns for t on and less than 170ns for t off . these devices oper- ate from a single +10v to +30v supply, or bipolar ?.5vto ?0v supplies. maxim? improved dg441/dg442 continue to be fabricated with a 44v silicon-gate process. applications new features ? ? plug-in upgrades for industry-standard dg441/dg442 ? ? improved r ds(on) match between channels(4max) ? ? guaranteed r flat(on) over signal range (9max) ? ? improved charge injection (10pc max) ? ? improved off-leakage current over temperature (<5na at +85c) ? ? withstand electrostatic discharge (2000v min) per method 3015.7 existing features ? ? low r ds(on) (85 max) ? ? single-supply operation +10v to +30v bipolar-supply operation 4.5v to 20v ? ? low power consumption (1.65mw max) ? ? rail-to-rail signal handling ? ? ttl/cmos-logic compatible ordering information improved, quad, spst analog switches 19-4611; rev 5; 5/09 1615 14 13 12 11 10 9 12 3 4 5 6 7 8 in2 d2 s2 v+ v- s1 d1 in1 dg442 n.c.s3 d3 in3 in4 d4 s4 gnd dip/so thin qfn thin qfn dip/so dg442 logic switch 0 1 off on switches shown for logic ?0? input dg441 logic switch 0 1 on off 1615 14 13 12 11 10 9 12 3 4 5 6 7 8 in2 d2s2 v+ v- s1 d1 in1 dg441 n.c.s3 d3 in3 in4 d4 s4 gnd top view n.c. = not internally connected top view 16 d1 15 in1 14 in2 13 d2 5 d4 6 in4 7 in3 8 d3 2 v- 1 s1 3 gnd 4 s4 11 v+ 12 s2 10 n.c. 9 s3 dg441 16 d1 15 in1 14 in2 13 d2 5 d4 6 in4 7 in3 8 d3 2 v- 1 s1 3 gnd 4 s4 11 v+ 12 s2 10 n.c. 9 s3 dg442 *ep *ep *ep = exposed pad. connect exposed pad to v+. dg441/dg442 ordering information continued at end of data sheet. note: devices are available in both leaded and lead(pb)-free packaging. specify lead-free by adding the + symbol at the end of the part number when ordering. * contact factory for dice specifications. for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com. sample-and-hold circuitscommunication systems test equipment battery-operated systems heads-up displays fax machines pbx, pabxguidance and control systems audio-signal routing military radios modems part temp range pin-package dg441 cj 0c to +70c 16 plastic dip dg441cy 0c to +70c 16 narrow so dg441c/d 0c to +70c dice* dg441dj -40c to +85c 16 plastic dip dg441dy -40c to +85c 16 narrow so downloaded from: http:///
2 __________________________________________________ _____________________________________ dg441/dg442 improved, quad, spst analog switches 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. electrical characteristicsdual supplies (v+ = 15v, v- = -15v, v gnd = 0v, v inh = 2.4v, v inl = 0.8v, t a = t min to t max , unless otherwise noted.) absolute maximum ratings voltage referenced to v- v+.......................................................................................44v gnd ...................................................................................25v v l .................................................(gnd - 0.3v) to (v+ + 0.3v) digital inputs, v s , v d (note 1)......(v- - 2v) to (v+ + 2v) or 30ma (whichever occurs first) continuous current (any terminal) ......................................30ma peak current, s or d (pulsed at 1ms, 10% duty-cycle max) .................................100ma continuous power dissipation (t a = +70?) plastic dip (derate 10.53mw/? above +70?) ..........842mw thin qfn (derate 20.8mw/? above +70?).............1667mw narrow so (derate 8.70mw/? above +70?) ............696mw cerdip (derate 10.00mw/? above +70?) ...............800mw operating temperature ranges dg441c/dg442c ...............................................0? to +70? dg441d, e/dg442d, e ...................................-40? to +85? dg441ak, my/dg442ak, my .......................-55? to +125? storage temperature range .............................-65? to +150? lead temperature (soldering, 10s) .................................+300? v+ = 16.5v, v- = -16.5v,v d = ?5.5v, v s = ?5.5v -0.50 0.08 0.50 i d(on) or i s(on) v+ = 13.5v, v- = -13.5v,i s = -10ma, v d = 8.5v or -8.5v (note 3) v in = 0.8v v+ = 16.5v, v- = -16.5v,v d = 15.5v, v s = ?5.5v -.0.50 0.01 0.50 v+ = 16.5v, v- = -16.5v,v d = 15.5v, v s = ?5.5v -0.50 0.01 0.50 i d(off) drain off-leakage current(note 5) na v+ = 15v, v- = -15v,v d = ?0v, i s = -10ma 4 r ds(on) on-resistance matchbetween channels (note 4) v in = 2.4v conditions drain on-leakage current(note 5) na t a = +25? t a = t max a -20 20 na -500 0.01 500 i inl input current withinput voltage low -5 5 t a = +25? t a = t max c, d na -500 0.01 500 i inh input current withinput voltage high 5 50 85 r ds(on) drain-source on-resistance v -15 15 v analog analog-signal range i s(off) source off-leakage current(note 5) na -20 20 t a = +25? t a = t max c, d t a = +25? t a = t min to t max v+ = 15v, v- = -15v,v d = 5v or -5v, i s = -10ma 9 100 t a = +25? t a = t min to t max r flat(on) on-resistance flatness (note 4) 15 t a = +25? t a = t min to t max units min typ max (note 2) symbol parameter a -5 5 -20 20 a -10 10 c, d note 1: signals on s, d, or in exceeding v+ or v- are clamped by internal diodes. limit forward current to maximum current ratings. digital switch downloaded from: http:///
dg441/dg442 improved, quad, spst analog switches ___________________________________________________ ____________________________________ 3 t a = +25? t a = t min to t max t a = +25? all channels on or off, v+ = 16.5v, v- = -16.5v,v in = 0v or 5v t a = +25? f = 1mhz, figure 6 t a = +25? pf t a = +25? t a = +25? c l = 1nf, v gen = 0v, r gen = 0 , figure 3 all channels on or off,v+ = 16.5v, v- = -16.5v, v in = 0v or 5v t a = +25? all channels on or off, v+ = 16.5v, v- = -16.5v,v in = 0v or 5v conditions 110 170 q charge injection (note 3) pc 51 0 t a = +25? dg441, v d = ?0v, figure 2 ns 4 c d(off) drain off-capacitance pf 4 t a = +25? r l = 50 , c l = 5pf, f = 1mhz, figure 5 db 60 crosstalk (note 7) db -100 r l = 50 , c l = 5pf, f = 1mhz, figure 4 oirr off-isolation rejectionratio (note 6) f = 1mhz, figure 6 c s(off) source off-capacitance t a = +25? ? 15 100 i+ positive supply current v ?.5 ?0.0 v+, v- power-supply range 150 250 t off turn-off time ns 90 120 v s = ?0v, r l = 1k , figure 2 t on ? -1 -0.0001 1 i- negative supply current -5 5 turn-on time dg442, v d = ?0v, figure 2 ? -100 -15 i gnd ground current f = 1mhz, figure 6 c d(on) drain on-capacitance pf units min typ max (note 2) symbol parameter 16 electrical characteristicsdual supplies (continued) (v+ = 15v, v- = -15v, v gnd = 0v, v inh = 2.4v, v inl = 0.8v, t a = t min to t max , unless otherwise noted.) supply dynamic downloaded from: http:///
dg441/dg442 improved, quad, spst analog switches 4 __________________________________________________ _____________________________________ electrical characteristicssingle supply (v+ = 12v, v- = 0v, v gnd = 0v, v inh = 2.4v, v inl = 0.8v, t a = t min to t max , unless otherwise noted.) __________________________________________typical operating characteristics (t a = +25?, unless otherwise noted.) -15 0 15 -10 -5 510 on-leakage currents on-leakage (na) -2 -1 0 1 2 3 4 v s , v d (v) t a = +125 c t a = +85 c v+ = 15vv- = -15v -15 0 15 -10 -5 510 off-leakage currents off-leakage (na) -1 0 2 1 v s , v d (v) t a = +85 c t a = +125 c v+ = 15vv- = -15v switching threshold vs. bipolar supply voltage v in (v) 0 0.5 1.5 2.0 2.5 3.0 3.5 5 10 15 20 bipolar supply voltage (v) max min note 2: typical values are for design aid only, are not guaranteed, and are not subject to production testing. the algebraic con- vention, where the most negative value is a minimum and the most positive value a maximum, is used in this data sheet. note 3: guaranteed by design. note 4: on-resistance match between channels and flatness is guaranteed only with bipolar-supply operation. flatness is definedas the difference between the maximum and the minimum value of on-resistance as measured at the extremes of the speci- fied analog range. note 5: leakage parameters i s(off) , i d(off) , and i d(on) are 100% tested at the maximum rated hot temperature and guaranteed by correlation at +25?. note 6: off-isolation rejection ratio = 20log (v d /v s ), v d = output, v s = input to off switch. note 7: between any two switches. t a = +25? t a = t min to t max ? (note 3) t a = +25? ? 15 100 all channels on or off, v in = 0v or 5v i+ t a = t min to t max positive supply current t a = +25? c l = 1nf, v gen = 0v ns v+ = 10.8v, v d = 3v, 8v, i s = 1.0ma 60 200 q charge injection (note 3) pc 51 0 conditions -5 5 v s = 8v, figure 2 t off turn-off time t a = +25? all channels on or off, v in = 0v or 5v v -100 -15 all channels on or off, v in = 0v or 5v i gnd ground current t a = +25? v 01 2 v analog analog signal range 10 30 i- negative supply current ? -1 -0.0001 1 v+ 100 160 r ds(on) drain-sourceon-resistance 200 power-supply range v s = 8v, figure 2 t on turn-on time ns units min typ max (note 2) symbol parameter 300 400 switch supply dynamic downloaded from: http:///
dg441/dg442 improved, quad, spst analog switches _______________________________________________________________________________________ 5 ____________________________typical operating characteristics (continued) (t a = +25?, unless otherwise noted.) on-resistance vs. v d and unipolar supply voltage 0 25 50 75 100 125 150 175 200 225 250 0 5 10 15 20 v d (v) r ds(on) ( ) v+ = 10v v+ = 15v v+ = 20v on-resistance vs. v d and unipolar supply voltage and temperature 0 25 50 75 100 125 150 r ds(on) ( ) 04 81 2 v d (v) t a = +125 c t a = +25 c t a = -55 c v+ = 12vv- = 0v on-resistance vs. v d and bipolar supply voltage r ds(on) ( ) 30 60 90 120 150 180 -20 -10 0 +10 +20 v d (v) 5v 10v 15v 20v 0 -15 0 15 -10 -5 510 r ds(on) ( ) 0 20 40 60 80 100 120 v d (v) t a = +125 c t a = -55 c t a = +25 c v+ = 15v, v- = -15v on-resistance vs. v d and bipolar voltage and temperature switching times vs. bipolar supply voltage time (ns) 0 40 80 120 160 200 240 5 10 15 20 bipolar supply voltage (v) t on t off switching times vs. unipolar supply voltage time (ns) 0 50 100 150 200 250 300 350 10 15 20 25 unipolar supply voltage (v) t on t off charge injection vs. v d voltage (dual supply) q (pc) -20 0 20 40 v d (v) -15 -10 0 10 15 v+ = 15vv- = -15v c l = 1nf charge injection vs. v d voltage (single supply) q (pc) -10 0 10 0 5 10 15 v d (v) v+ = 12vv- = 0v c l = 1nf downloaded from: http:///
applications information operation with supply voltages other than 15v using supply voltages other than ?5v reduces theanalog signal range. the dg441/dg442 switches oper- ate with ?.5v to ?0v bipolar supplies or with a +10v to +30v single supply; connect v- to 0v when operating with a single supply. also, all device types can operate with unbalanced supplies such as +24v and -5v. the typical operating characteristics graphs show typical on-resistance with ?0v, ?5v, ?0v, and ?v sup- plies. (switching times increase by a factor of two ormore for operation at ?v.) overvoltage protection proper power-supply sequencing is recommended forall cmos devices. do not exceed the absolute maxi- mum ratings because stresses beyond the listed rat- ings can cause permanent damage to the devices. always sequence v+ on first, followed by v- and logic inputs. if power-supply sequencing is not possible, add two small, external signal diodes in series with supply pins for overvoltage protection (figure 1). adding exter- nal diodes reduces the analog-signal range to 1v below v+ and 1v above v-, but low switch resistance and low leakage characteristics are unaffected. device operation is unchanged, and the difference between v+ and v- should not exceed +44v. pin description dg441/dg442 improved, quad, spst analog switches 6 __________________________________________________ _____________________________________ v+ s v- d v g figure 1. overvoltage protection using external blocking diodes pin dip/so thin qfn-ep name function 1, 16, 9, 8 15, 14, 7, 6 in1Cin4 input 2, 15, 10, 7 16, 13, 8, 5 d1Cd4 analog switch drain terminal 3, 14, 11, 6 1, 12, 9, 4 s1Cs4 analog switch source terminal 4 2 v- negative-supply voltage input 5 3 gnd ground 12 10 n.c. not internally connected 13 11 v+ positive-supply voltage inputconnected to substrate e p exposed pad. connect ep to v+. do not use ep as a sole v+ connection. (thin qfn package only.) downloaded from: http:///
dg441/dg442 improved, quad, spst analog switches ___________________________________________________ ____________________________________ 7 t off 0.8 x v out v out 0.8 x v out t f < 20ns t r < 20ns 50% 0v0v +3v switch output logic input waveform is inverted for switches that have the opposite logic sense. t on switch input logic input +3v in d +15v v+ v- -15v r l 35pf v out s c l (includes fixture and stray capacitance) gnd repeat test for channels 2, 3, and 4. v out = v d r l r l + r ds(on) logic input v d dg441 dg442 ( ) v out off on off v out inin off off on q = v out c l -15v v- v+ in gnd s +15v r gen v gen v in = +3v c l 1nf v out d dg441 dg442 dg441dg442 figure 2. switching time figure 3. charge injection network analyzer signal generator r gen = 50 s d gnd r l 10dbm 10nf v+ +15v in 0.8v or 2.4v v- -15v 10nf dg441 dg442 network analyzer signal generator r gen = 50 0.8v or 2.4v s in1 d gnd r l 10dbm 10nf v+ +15v d in2 s 0.8v or 2.4v 50 v- -15v 10nf dg441 dg442 figure 4. off-isolation rejection ratio figure 5. crosstalk (repeat for channels 3 and 4) ______________________________________________timing diagrams/test circuits downloaded from: http:///
dg441/dg442 improved, quad, spst analog switches 8 __________________________________________________ _____________________________________ capacitance meter ds gnd 10nf +15v in 0.8v or 2.4v v- -15v 10nf +v f = 1mhz timing diagrams/ test circuits (continued) figure 6. source/drain-on/off capacitance ordering information (continued) package type package code document no. 16 plastic dip p16-1 21-0043 16 narrow so s16-3 21-0041 16 cerdip j16-3 21-0045 16 thin qfn-ep (5mm x 5mm) t1655-2 21-0140 package information for the latest package outline information and land patterns, go to www.maxim-ic.com/packages . note: devices are available in both leaded and lead(pb)-free packaging. specify lead-free by adding the + symbol at the end of the part number when ordering. * contact factory for dice specifications. ** ep = exposed pad. *** contact factory for availability and processing to mil-std- 883b. not available in lead-free. part temp range pin-package dg441dk -40c to +85c 16 cerdip dg441ete -40c to +85c 16 thin qfn-ep** dg441ak -55c to +125c 16 cerdip*** dg441my/pr -55c to +125c 16 narrow so dg442 cj 0c to +70c 16 plastic dip DG442CY 0c to +70c 16 narrow so dg442c/d 0c to +70c dice* dg442dj -40c to +85c 16 plastic dip dg442dy -40c to +85c 16 narrow so dg442dk -40c to +85c 16 cerdip dg442ete -40c to +85c 16 thin qfn-ep** dg442ak -55c to +125c 16 cerdip*** dg442my/pr -55c to +125c 16 narrow so downloaded from: http:///
dg441/dg442 improved, quad, spst analog switches maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circuit patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 _____________________ 9 2009 maxim integrated products maxim is a registered trademark of maxim integrated products, inc. revision history reision number reision date description pages changed 5 5/09 added ruggedized plastic. 1, 2, 6, 8 downloaded from: http:///
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