general description the max4736 is a low on-resistance, low-voltage, dual single-pole/double throw (spdt) analog switch that oper - ates from a single 1.6v to 4.2v supply. this device has fast switching speeds (t on = 25ns, t off = 20ns max), handles rail-to-rail analog signals, and consumes less than 4w of quiescent power. the max4736 has break- before-make switching. when powered from a 3v supply, the max4736 features low 0.6 on-resistance (r on ), with 0.1 r on matching and 0.05 r on flatness. the digital logic input is 1.8v cmos compatible when using a single 3v supply. the max4736 has one normally open (no) switch and one normally closed (nc) switch, and is available in 12-pin tqfn-ep (3mm x 3mm), qfn-ep (3mm x 3mm), 10-pin max and 10 pin dfn (2mm x 2mm) packages. applications power routing battery-powered systems audio and video signal routing low-voltage data-acquisition systems communications circuits pcmcia cards cellular phones modems hard drives features low r on 0.6 (3v supply) 1.5 (1.8v supply) 0.1 max r on flatness (3v supply) single-supply operation down to 1.6v available in tqfn, qfn, dfn, and max packages 1.8v cmos logic compatible (3v supply) fast switching: t on = 25ns, t off = 20ns note: all devices operate over the -40c to +55c operating temperature range.* ep = exposed pad. +denotes lead(pb)-free/rohs-compliant package. part pin-package pkg code max4736eub+ 10 max u10+2 max4736etc+ 12 tqfn-ep* t1233+1 max4736egc+ 12 qfn-ep* g1233+1 MAX4736ELB+ 10 dfn l1022+1 top view max4736 max4736 in_ no_ nc_ 0 off on 1 on off switches shown for logic 0 input 1 23 4 5 10 98 7 6 no2 gnd no1 in1 max/ dfn in2 nc2 v+ nc1 com1com2 12 in1 11 com1 10 n.c. 9 nc1 8 v+ 7 nc2 4 in2 5 com2 6 n.c. 1 no1 2 gnd 3 no2 max4736 tqfn/qfn note: connect exposed pad on tqfn, qfn, and dfn to gnd. max4736 0.6, low-voltage, single-supply, dual spdt analog switch 19-2382; rev 3; 1/14 pin conigurations/functional diagrams/truth table ordering information evaluation kit available downloaded from: http:///
(voltages referenced to gnd.) v+, in_...................................................................-0.3v to +4.6v com_, no_, nc_ (note 1) ...........................-0.3v to (v+ + 0.3v) continuous current com_, no_, nc_ ...........................300ma continuous current (all other pins)....................................20ma peak current com_, no_, nc_ (pulsed at 1ms 10% duty cycle).................. . ................500ma continuous power dissipation (t a = +70c) 10-pin dfn (derate 5.3mw/c above +70c)........423.7mw 10-pin max (derate 5.6mw/c above +70c)...........444mw 12-pin tqfn-ep (derate 14.7mw/c above +70c) ..... 1176mw 12-pin qfn-ep (derate 11.9mw/c above +70c) ...... 952mw operating temperature range.............................-40c to +85c maximum junction temperature.......................................+150c storage temperature range .............................-65c to +150c lead temperature (soldering, 10s)...................................+300c (v+ = 2.7v to 4.2v, v ih = 1.4v, v il = 0.5v, t a = t min to t max , unless otherwise specified. typical values are at v+ = 3.0v, t a = +25c.) (notes 2, 3) note 1: signals on com_, no_, or nc_ exceeding v+ or gnd are clamped by internal diodes. limit forward current to maximum current rating. parameter symbol conditions min typ max units analog switchanalog signal range v com_ , v no_ , v nc_ 0 v+ v on-resistance (note 4) r on v+ = 2.7v ,i com_ = 100ma; v no_ or v nc_ = 1.5v +25c 0.6 0.8 ? t min to t max 1 on-resistance match between channels (notes 4, 5) r on v+ = 2.7v ,i com_ = 100ma; v no_ or v nc_ = 1.5v +25c 0.1 0.2 ? t min to t max 0.3 on-resistance flatness (note 6) r flat(on) v+ = 2.7v, i com_ = 100m a; v no_ or v nc_ = 1v, 1.5v, 2v +25c 0.05 0.1 ? t min to t max 0.2 no_ or nc_ off-leakage current (note 10) i no_ (off) , i nc_ (off) v+ = 3.6v ,v com_ = 0.3v, 3.3v; v no_ or v nc_ = 3.3v, 0.3v +25c -1 0.002 +1 na t min to t max -5 +5 com_ on-leakage current (note 10) i com_(on) v+ = 3.6v, v com_ = 0.3v, 3.3v; v no_ or v nc_ = 0.3v, 3.3v, or loating +25c -2 0.002 +2 na t min to t max -10 +10 max4736 0.6, low-voltage, single-supply, dual spdt analog switch www.maximintegrated.com maxim integrated 2 absolute maximum ratings stresses beyond those listed under absolute 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 characteristicssingle 3v supply downloaded from: http:///
(v+ = 2.7v to 4.2v, v ih = 1.4v, v il = 0.5v, t a = t min to t max , unless otherwise specified. typical values are at v+ = 3.0v, t a = +25c.) (notes 2, 3) parameter symbol conditions min typ max units switch dynamic characteristics turn-on time t on v no_ , v nc_ = 1.5v; r l = 50, c l = 35pf, figure 1 +25c 20 25 ns t min to t max 30 turn-off time t off v no_ , v nc_ = 1.5v; r l = 50, c l = 35pf, figure 1 +25c 15 20 ns t min to t max 25 break-before-make (note 7) t bbm v no_ , v nc_ = 1.5v; r l = 50, c l = 35pf, figure 2 +25c 5 ns t min to t max 1 charge injection q v gen = 0, r gen = 0, c l = 1.0nf, figure 3 +25c 60 pc no_ or nc_ off- capacitance c off f = 1mhz, figure 4 +25c 33 pf com_ off-capacitance c com(off) f = 1mhz, figure 4 +25c 60 pf com_ on-capacitance c com(on) f = 1mhz, figure 4 +25c 85 pf -3db on-channel bandwidth bw signal = 0, r in = r out = 50, c l = 5pf, figure 5 130 mhz off-isolation (note 8) v iso f = 1mhz, v com_ = 1v p-p , r l = 50, c l = 5pf, figure 5 +25c -52 db crosstalk (note 9) v ct f = 1mhz, v com_ = 1v p-p , r l = 50, c l = 5pf, figure 5 +25c -78 db total harmonic distortion thd f = 20hz to 20khz, v com_ = 2v p-p , r l = 32 +25c 0.018 % logic input (a_, in_) input logic high v ih 1.4 v input logic low v il 0.5 v input leakage current i in v in_ = 0 or 3.6v -1 +0.005 +1 a power supply power-supply range v+ 1.6 3.6 v positive supply current i+ v+ = 3.6v, v in_ = 0 or v+, all channels on or off 0.006 1 a max4736 0.6, low-voltage, single-supply, dual spdt analog switch www.maximintegrated.com maxim integrated 3 electrical characteristicssingle 3v supply (continued) downloaded from: http:///
(v+ = 1.8v, v ih = 1.0v, v il = 0.4v, t a = t min to t max , unless otherwise specified. typical values are at t a = +25c.) (notes 2, 3) note 2: the algebraic convention, where the most negative value is a minimum and the most positive value is a maximum, is used in this data sheet. note 3: -40c specifications are guaranteed by design. note 4: r on and r on matching specifications for tqfn/qfn packaged parts are guaranteed by design. note 5: r on = r on(max) - r on(min) . note 6: flatness is defined as the difference between the maximum and the minimum value of on-resistance as measured over the specified analog signal ranges. note 7: guaranteed by design. note 8: off-isolation = 20log 10 (v com_ /v no_ ), v com_ = output, v no_ = input to off switch. note 9: between two switches. note 10: leakage parameters are 100% tested at hot temperature and guaranteed by correlation at room. note 11: devices are guaranteed to 1 million cycles of operation. (cycle = switch on switch off switch o n) note 12: the minimum load resistance is 8. parameter symbol conditions t a min typ max units analog switchanalog signal range v com_ , v no_ , v nc_ 0 v+ v on-resistance r on i com_ = 100ma; v no_ or v nc_ = 1v +25c 1.5 2 ? t min to t max 3 switch dynamic characteristics turn-on time t on v no , or v nc_ = 1v; r l = 50, c l = 35pf, figure 1 +25c 25 30 ns t min to t max 35 turn-off time t off v no , or v nc_ = 1v; r l = 50, c l = 35pf, figure 1 +25c 18 25 ns t min to t max 28 break-before-make (note 7) t bbm v no , or v nc_ = 1v; r l = 50, c l = 35pf, figure 2 +25c 7 ns t min to t max 1 charge injection q v gen = 0, r gen = 0, c l = 1nf, figure 3 +25c 35 pc off-isolation (note 8) v iso f = 1mhz, v no_ = v nc_ = 1v p-p , r l = 50, c l = 5pf, figure 5 +25c -52 db crosstalk (note 9) v ct f = 1mhz, v com_ = 1v p-p , r l = 50, c l = 5pf, figure 5 +25c -78 db logic input (in_) input logic high v ih 1 v input logic low v il 0.4 v input leakage current i in v in_ = 0 or 3.6v 1 a max4736 0.6, low-voltage, single-supply, dual spdt analog switch www.maximintegrated.com maxim integrated 4 electrical characteristicssingle 1.8v supply downloaded from: http:///
(t a = +25c, unless otherwise noted.) max4736 toc02 v com (v) r on ( ? ) 2.5 2.0 1.5 1.0 0.5 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0 0 3.0 on-resistance vs. v com and temperature v+ = 1.8v, t a = -40c v+ = 1.8v, t a = +85c v+ = 3.0v, t a = +85c v+ = 1.8v, t a = +25c v+ = 3.0v, t a = +25c v+ = 3.0v, t a = -40c on/off-leakage current vs. temperature max4736 toc03 temperature (c) leakage current (pa) 60 35 10 -15 10 100 1000 10,000 1 -40 85 off, v+ = 3.0v on, v+ = 3.0v on, v+ = 1.8v off, v+ = 1.8v -20 0 -10 3020 10 6050 40 70 0 1.0 0.5 2.0 2.5 3.0 charge injection vs. v com max4736 toc04 v com (v) q (pc) v+ = 3.0v v+ = 1.8v 1.5 1000 0.0001 0 0.4 2.0 2.8 supply current vs. supply voltage and temperature 0.001 1 100 max4736 toc05 supply voltage (v) supply current (na) 1.6 3.6 10 0.1 0.01 0.8 1.2 3.2 2.4 t a = -40c t a = +25c t a = +85c 0.5 0.70.6 1.00.9 0.8 1.1 1.2 2.4 2.0 2.8 3.2 3.6 logic-level threshold vs. supply voltage max4736 toc06 supply voltage (v) threshold (v) 1.6 rising falling turn-on/off time vs. supply voltage max4736 toc07 supply voltage (v) t on /t off (ns) 3.2 2.8 2.4 2.0 5 10 15 20 25 30 0 1.6 3.6 t off t on on-resistance vs. v com max4736 toc01 v com (v) r on ( ? ) 0.5 1.0 1.5 2.0 2.5 0 3 2 1 0 4 v+ = 3.0v v+ = 3.6v v+ = 1.6v v+ = 1.8v v+ = 2.5v turn-on/off times vs. temperature max4736 toc08 temperature (c) t on /t off (ns) 60 35 10 -15 5 10 15 20 25 30 0 -40 85 t on , v+ = 1.8v t off , v+ = 1.8v t on , v+ = 3.0v t off , v+ = 3.0v max4736 0.6, low-voltage, single-supply, dual spdt analog switch maxim integrated 5 www.maximintegrated.com typical operating characteristics downloaded from: http:///
(t a = +25c, unless otherwise noted.) pin name function max/dfn tqfn/qfn 1 12 in1 digital control input switch 1 2 1 no1 analog switch 1normally open terminal 3 2 gnd ground 4 3 no2 analog switch 2normally open terminal 5 4 in2 digital control input switch 2 6 5 com2 analog switch 2common terminal 7 7 nc2 analog switch 2normally closed terminal 8 8 v+ positive-supply voltage input 9 9 nc1 analog switch 1normally closed terminal 10 11 com1 analog switch 1common terminal 6,10 n.c. no connection ep ep exposed pad. connect to ground. 10 100 1k 10k total harmonic distortion vs. frequency max4736 toc10 frequency (hz) thd (%) 100k r l = 32 ? 0.02 0.04 0.06 0.08 0.10 0 v+ = 3.0vv com = 2v p-p v+ = 1.8vv com = 1.2v p-p 15 0 -45 -75 -90 -105-120 0.01 100 1000 frequency response max4736 toc09 frequency (mhz) loss (db) 0.1 1 10 -30 -15 -60 on-response off-isolation crosstalk max4736 0.6, low-voltage, single-supply, dual spdt analog switch www.maximintegrated.com maxim integrated 6 pin description typical operating characteristics (continued) downloaded from: http:///
detailed description the max4736 is a low 0.8 max (at v+ = 2.7v) onresis - tance, low-voltage, dual spdt analog switch that oper - ates from a 1.6v to 4.2v single supply. cmos switch construction allows switching analog signals that range from gnd to v+. when powered from a 2.7v supply, the 0.8 max r on allows high continuous currents to be switched in a variety of applications. applications information proper power-supply sequencing is recommended for all cmos devices. do not exceed the absolute maximum ratings; stresses beyond the listed ratings can cause per - manent damage to the devices. always sequence v+ on first, followed by no_, nc_, or com_. although it is not required, power-supply bypassing improves noise margin and prevents switching noise propagation from the v+ supply to other components. a 0.1f capacitor, connected from v+ to gnd, is adequate for most applications. logic inputs the max4736 logic inputs can be driven up to 3.6v, regardless of the supply voltage. for example, with a 1.8v supply, in_ can be driven low to gnd and high to 3.6v. driving in_ rail-to-rail minimizes power consumption. analog signal levels analog signals that range over the entire supply voltage (v+ to gnd) can be passed with very little change in onresistance (see typical operating characteristics ). the switches are bidirectional, so the no_, nc_, and com_ pins can be used as either inputs or outputs. layout high-speed switches require proper layout and design procedures for optimum performance. reduce stray induc - tance and capacitance by keeping traces short and wide. ensure that bypass capacitors are as close to the device as possible. use large ground planes where possible. figure 1. switching time t r < 5ns t f < 5ns 50% 0 v in_ = v ih + 0.5v t off 0 0.9 x v 0ut 0.9 x v out t on v out switch output logic input logic input waveforms inverted for switchesthat have the opposite logic sense. max4736 logic input r l gnd c l includes fixture and stray capacitance. no_ or nc_ in_ nc_ or no_ v out v+ v+ c l v in com_ max4736 0.6, low-voltage, single-supply, dual spdt analog switch www.maximintegrated.com maxim integrated 7 test circuits/timing diagrams downloaded from: http:///
figure 2. break-before-make intervalfigure 3. charge injection figure 4. channel off/on-capacitance 50% v ih + 0.5v 0 logic input v out 0.9 x v out t d max4736 logic input r l gnd c l includes fixture and stray capacitance. no_ or nc_ in_ nc_ or no_ v out v+ v+ c l v in com_ t r < 5ns t f < 5ns v gen gnd com_ c l v out v+ v out in off on off ? v out q = ( ? v out )( c l ) or no_ nc_ in depends on switch configuration;input polarity determined by sense of switch. off on off in v inl to v inh v+ r gen in max4736 capacitance meter nc_ or no_ com_ gnd in_ v inl or v inh 10nf v+ f = 1mhz v+ max4736 max4736 0.6, low-voltage, single-supply, dual spdt analog switch www.maximintegrated.com maxim integrated 8 test circuits/timing diagrams (continued) chip information transistor count: 379 process: cmos downloaded from: http:///
figure 5. on-loss, off-isolation, and crosstalk package type package code outline no. land pattern no. 10 max u10+2 21-0061 90-0330 12 tqfn t1233+1 21-0136 90-0066 12 qfn g1233+1 21-0102 90-0215 10 dfn l1022+1 21-0164 90-0006 measurements are standardized against shorts at ic terminals. off-isolation is measured between com_ and "off" no_ or nc_ terminal on each switch. on-loss is measured between com_ and "on" no_ or nc_ terminal on each switch. crosstalk is measured from one channel to all other channels. signal direction through switch is reversed; worst values are recorded. v+ v out v+ in_nc_ com_ no v in max4736 off-isolation = 20log v out v ref on-loss = 20log v out v ref crosstalk = 20log v out v ref network analyzer 50 ? 50 ? 50 ? 50 ? meas ref 10nf 0 or v+ 50 ? gnd max4736 0.6, low-voltage, single-supply, dual spdt analog switch www.maximintegrated.com maxim integrated 9 package information for the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages . note that a +, #, or - in the package code indicates rohs status only. package drawings may show a different su ffix character, but the drawing pertains to the package regardless of rohs status. downloaded from: http:///
revision number revision date description pages changed 3 1/14 added qfn package 1, 2, 4, 6, 10 maxim integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim integrated product. no circuit patent licenses are implied. maxim integrated reserves the right to change the circuitry and speciications without n otice at any time. the parametric values (min and max limits) shown in the electrical characteristics table are guaranteed. other parametric values quoted in this data sheet are provided for guidance. maxim integrated and the maxim integrated logo are trademarks of maxim integrated products, inc. max4736 0.6, low-voltage, single-supply, dual spdt analog switch ? 2014 maxim integrated products, inc. 10 revision history for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim integrateds website at www.maximintegrated.com. downloaded from: http:///
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