_______________general description the max333a is a precision, quad, single-pole double-throw (spdt) analog switch. the four independent switches operate with bipolar supplies ranging from ?.5v to ?0v, or with a single-ended supply between +10v and +30v. the max333a offers low on resistance (less than 35 ), guaranteed to match within 2 between channels and to remain flat over the analog signal range( ? 3 max). it also offers break-before-make switching (10ns typical), with turn-off times less than 145ns andturn-on times less than 175ns. the max333a is ideal for portable operation since quiescent current runs less than 50? with all inputs high or low. this monolithic, quad switch is fabricated with maxim? new improved silicon-gate process. design improvements guarantee extremely low charge injection (10pc), low power consumption (3.75mw), and electrostatic discharge (esd) greater than 2000v. logic inputs are ttl and cmos compatible and guaranteed over a +0.8v to +2.4v range?egardless of supply voltage. logic inputs and switched analog signals can range any- where between the supply voltages without damage. ________________________applications test equipmentcommunications systems pbx, pabx heads-up displays portable instruments ____________________________features ? upgraded replacement for a dg211/dg212 pairor two dg403s ? low on resistance < 17 typical (35 max) ? guaranteed matched on resistance betweenchannels < 2 ? guaranteed flat on resistance over analogsignal range ? 3 max ? guaranteed charge injection < 10pc ? guaranteed off-channel leakage < 6na at +85c ? esd guaranteed > 2000v per method 3015.7 ? single-supply operation (+10v to +30v)bipolar-supply operation (4.5v to 20v) ? ttl-/cmos-logic compatibility ? rail-to-rail analog signal handling capability ______________ordering information * contact factory for dice specifications. max333a precision, quad, spdt, cmos analog switch ________________________________________________________________ maxim integrated products 1 inputs v 1 v 2 osc in v 3 v 4 flying capacitor level translator (2-channel) outputs v 1 - v 2 v 3 - v 4 __________typical operating circuit switches are shown with logic "0" inputn.c. = not internally connected 2019 18 17 16 15 14 13 12 11 12 3 4 5 6 7 8 9 10 in4no4 com4 nc4 nc1 com1 no1 in1 max333a v+n.c. nc3 com3 com2 nc2 gnd v- no3 in3 in2 no2 top view dip/so/tssop __________________pin configuration part temp. range pin-package max333acpp 0? to +70? 20 plastic dip max333acwp 0? to +70? 20 wide so max333acup 0? to +70? 20 tssop max333aepp -40? to +85? 20 plastic dip max333aewp -40? to +85? 20 wide so max333aeup -40? to +85? 20 tssop 19-0189; rev 1; 6/99 max333ac/d 0? to +70? dice* max333amjp -55? to +125? 20 cerdip for free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. for small orders, phone 1-800-835-8769. downloaded from: http:///
max333a precision, quad, spdt, cmos analog switch 2 _______________________________________________________________________________________ absolute maximum ratings v+ to v- ..................................................................................44v v in , v com , v no , v nc ......................................................v- to v+ (v no - v nc ) ............................................................................32v v+ to ground..........................................................................30v v- to ground..........................................................................-30v current, any terminal except v com , v no , or v nc .............30ma continuous current, v com , v no , or v nc ............................20ma peak current, v com , v no , or v nc (pulsed at 1ms, 10% duty cycle max) ............................70ma esd ....................................................................................2000v continuous power dissipation (t a = +70?) (note 1) plastic dip (derate above +70? by 11.11mw/?) .....889mw so (derate above +70? by 10.00mw/?) ..................800mw cerdip (derate above +70? by 11.11mw/?) ..........889mw tssop (derate above +70? by 7mw/?) ..................559mw operating temperature ranges: max333ac_ _ .....................................................0? to +70? max333ae_ _ ..................................................-40? to +85? max333amjp ................................................-55? to +125? storage temperature range .............................-65? to +150? lead temperature (soldering, 10sec) .............................+300? electrical characteristicsdual supplies(gnd = 0v, v+ = +15v, v- = -15v, t a = +25?, unless otherwise noted.) note 1: device mounted with all leads soldered to pc board. stresses beyond those listed under ?bsolute maximum ratings?may cause permanent damage to the device. these are stress ratings only, and function- al 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. parameter symbol min typ max (notes 2, 3) units input voltage low v il v- 0.8 v negative supply current i- 0.01 1 m a v+ 10 30 input voltage high v ih 2.4 v+ v input current i in -1.0 0.0001 1.0 ? analog signal range v com, v no, v nc v- v+ v positive supply current i+ 0.05 0.25 ma supply voltage range v+/v- ?.5v ?0 v on circuit resistance r on 20 35 on resistance matchbetween channels (note 4) r on on resistance flatness(note 4) r on i (nc or no) = -10ma, v d = 5v or -5v, v+ =15v, v- = -15v on circuit leakagecurrent i com -0.75 0.75 na off circuit leakagecurrent i nc or i no -0.25 0.01 0.25 na turn-off time t off 145 ns turn-on time t on 175 ns break-before-make time t open 10 ns off capacitance c off 5 pf on capacitance c on 5 pf charge injection q 21 0 pc oirr 72 db conditions v in = 0v/5v,v+ = 16.5v, v- = -16.5v single supply, v- = gnd v in = v-, v+ figure 1 v in = 0v/5v,v+ = 16.5v, v- = -16.5v dual supply, v+ = v- c l = 10nf, v gen = 0v, r gen = 0 , figure 6 f = 1mhz, rl = 75 , v com = 2.3v rms ccrr 78 db v com = +10v, i (nc or no) = 1ma; v com = -10v, i (nc or no) = 1ma 2 t a = +25? 3 m t a = +25? v com = ?5.5v, v nc or v no = + 15.5v, v+ = 16.5v, v- = -16.5v v com = ?5.5v v nc or v no = + 15.5v, v+ = 16.5v, v- = -16.5v m m t a = t min to t max t a = t min to t max c, e c, e c, e t a = +25? 45 4 5 -1.00 0.20 1.00 -0.50 0.02 0.05 off isolation crosstalk i (nc or no) = -10ma, v d = 10v or -10v, v+ =15v, v- = -15v power requirements logic input switch dynamic downloaded from: http:///
max333a precision, quad, spdt, cmos analog switch _______________________________________________________________________________________ 3 electrical characteristicsCdual supplies (continued)(gnd = 0v, v+ = +15v, v- = -15v, t a = t min to t max , unless otherwise noted.) electrical characteristicssingle supply(gnd = 0v, v+ = +12v, v- = 0v, t a = +25?, unless otherwise noted.) parameter symbol min typ max (notes 2, 3) units on circuit resistance r on 45 analog signal range v com v- v+ v input current i in -1.0 0.0001 1.0 ? on circuit leakage current i com -10 10 na on circuit leakage current i nc or i no -6 6 na input voltage low v il v- 0.8 v input voltage high v ih 2.4 v+ v conditions v in = v-, v+ parameter off circuit leakage current symbol min typ max (notes 2, 3) i nc or i no 0.25 units input current i in na 1 ? input voltage high v inhi 2.4 v+ v input voltage low v inlo 0 0.8 v turn-off time analog signal range v com , v no , v nc v- v+ v t off 45 ns turn-on time on circuit resistance t on r on 35 75 90 on circuit leakage current ns i com 0.75 na break-before-make time t open 51 0 ns off isolation supply voltage range oirr 70 db crosstalk ccrr 72 db v + 10 30 v positive supply current l+ 0.25 ma conditions v com = 11v v nc or v no = 1v v in = v+, 0v figure 1 v com = 10v, i( nc or no) = 1ma, v com = 1v, i( nc or no) = 1ma v com = 11v, v nc or v no = 0v v com = 1v, v nc or v no = v+ f = 1mhz, r l = 75 , v com = 2.3v rms single supply, v- = gnd v com = 10v, i (nc or no) = 1ma; v com = -10v, i (nc or no = 1ma v com = ?5v, v nc or v no = -15v, v+ = 16.5v, v- = -16.5v v com = ?5v, v nc or v no = -15v, v+ = 16.5v, v- = -16.5v c, e c, e c, e m m m 45 -60 60 note 2: the algebraic convention, whereby the most negative value is a minimum and the most positive is a maximum, is used inthis data sheet. note 3: typical values are for design aid only, not guaranteed or subject to production testing. note 4: on resistance match between channels and flatness are guaranteed only with bipolar-supply operation. logic input switch dynamic switch input supply downloaded from: http:///
max333a precision, quad, spdt, cmos analog switch 4 _______________________________________________________________________________________ __________________________________________typical operating characteristics (t a = +25?, unless otherwise noted). 45 5 -20 -10 10 on resistance vs. v com and power supply voltage 15 35 max333a-01 v com (v) r on ( w ) 02 0 25 4010 3020 50 a b c d a: v+ = 5v, v- = -5v b: v+ = 10v, v- = -10v c: v+ = 15v, v- = -15v d: v+ = 20v, v- = -20v 5 -20 -10 10 on resistance vs. v com and temperature 30 max333a-02 v com (v) r on ( w ) 02 0 20 10 2515 35 v+ = 15v v- = -15v t a = +125? +85? +25? -55? 20 05 1 5 on resistance vs. v com and temperature 120 max333a-03 v com (v) r on ( w ) 10 20 80 40 100 60 140 v- = 0v v+ = 5v v+ = 10v v+ = 15v v+ = 20v 10 05 1 5 on resistance vs. v com and single supply 60 max333a-04 v com (v) r on ( w ) 10 20 40 20 5030 70 v+ = 12v v- = 0v t a = +125? t a = +85? t a = +25? -75 -20 charge injection vs. v com 50 max333a-07 v com (v) q (pc) 02 0 0 -50 25 -25 75 -15 -10 -5 5 10 15 v supply = +15v 0.0001 -55 off leakage currents vs. temperature 10 max333a-05 temperature (?) off leakage +25 +125 0.1 0.001 1 0.01 100 v+ = 16.5vv- = -16.5v v com = ?5v v nc or v no = ?5v 0.0001 -55 on leakage currents vs. temperature 10 max333a-06 temperature (?) on leakage +25 +125 0.1 0.001 1 0.01 100 v+ = 16.5vv- = -16.5v v com = ?5v v nc or v no = ?5v 0.0001 -55 supply current vs. temperature 10 max333a-08 temperature (?) i+, i-, i l ( m a) +25 +125 0.1 0.001 1 0.01 100 i+ at v+ = +16.5v i- at v+ = +16.5v downloaded from: http:///
__________applications information operation with supply voltages other than ?5v o the main limitation of supply voltages other than ?5v isa reduction in the analog signal range. the max333a operates with ?v to ?0v bipolar supplies. the typical operating characteristics and graphs show typ- ical on resistance for ?5v, ?0v, ? supplies.switching times increase by a factor of two or more for ?v operation. the max333a can operate from +10v to +24v unipolar supplies. it can be powered from a single +10v to +24v supply, as well as from unbalanced supplies such as +24v and -5v. connect v- to 0v when operating with a single supply. overvoltage protection proper power-supply sequencing is recommended forall cmos devices. it is important not to exceed the absolute maximum ratings because stresses beyond the listed ratings may cause permanent damage to the devices. always sequence v+ on first, followed by vl, v-, and logic inputs. if power-supply sequencing is not possible, add two small signal diodes in series with the supply pins (figure 1). adding the diodes reduces the analog signal range to 1v below v+ and 1v below v-, but low switch resistance and low leakage characteris- tics are unaffected. max333a precision, quad, spdt, cmos analog switch _______________________________________________________________________________________ 5 pin function 15 not internally connected 6 ground 5 negative power supply 4, 7, 14, 17 normally closed switches 16 positive power supply 1, 10, 11, 20 logic-level inputs 2, 9, 12, 19 normally open switches 3, 8, 13, 18 common switch poles name n.c. gnd v- nc1-nc4 v+ in1-in4 no1-no4 com1-com4 _____________________pin description t r < 20ns t f < 20ns 50% 0v +10v logic input v- -15v 300 w com_ gnd (repeat test for in2, in3, and in4.) v in +10v in_ no_ 50% t open 50% 50% 50% 50% 3v t open t on t off t on t off 0v -10v v com +15v v+ nc_ -10v switch output figure 2. switching-time test circuit v g no_ ( or nc_) v+ com_ v- figure 1. overvoltage protection using blocking diodes ______________________________________________test circuits/timing diagrams downloaded from: http:///
max333a precision, quad, spdt, cmos analog switch 6 _______________________________________________________________________________________ capacitance meter no_or nc_ com_ gnd c v- -15v in_ 0v, 2.4v c +15v v+ 50% v o1 v o2 0.9v o +3v 0v v com 0v v com logicinput switch output switch output +15v v+ no v- -15v c l includes fixture and stray capacitance. logic 0 input. gnd logic input 0v 0.9v o t d t d r l2 nc c l2 v o2 v o1 c l1 r l = 1000 w c l = 35pf com_ v com r l1 in_ v gen gnd nc or no c l 10nf v o -15v v- v+ r gen v o in_ on off on d v o q = ( d v o )(c l ) com_ +15v in_ figure 3. channel-off capacitance figure 5. break-before-make figure 6. charge injection capacitance meter noor nc com_ gnd c v- -15v in_ 0v, 2.4v c +15v v+ figure 4. channel-on capacitance ______________________________________________test circuits/timing diagrams downloaded from: http:///
max333a precision, quad, spdt, cmos analog switch _______________________________________________________________________________________ 7 in1 0v, 2.4v signalgenerator +15v c analyzer ch ach b nc1 or no1 r l 100 w gnd com_ c v- -15v repeat tests for other channels frequency tested 1 mhz signal generatorautomatic synthesizer analyzer tracking spectrum analyzer 0v, 2.4v in_ nc_ or no_ 50 w v+ com1 in_ 0v, 2.4v signalgenerator +15v c v+ analyzer ch ach b nc_or no_ r l 100 w gnd com_ c -15v c = 5pf frequency tested 1 mhz signal generatorautomatic synthesizer analyzer tracking spectrum analyzer off isolation = 20log v com v nc or v no v- figure 7. off-isolation figure 8. crosstalk _________________________________test circuits/timing diagrams (continued) downloaded from: http:///
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. 8 ___________________maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 (408) 737-7600 1999 maxim integrated products printed usa is a registered trademark of maxim integrated products. max333a precision, quad, spdt, cmos analog switch ___________________chip topography no2 com3 nc3 v+ nc4 no3 in3 in2 no4 com4 0.139" (3.53mm) com2 nc2 gnd v- nc1 com1 0.101" (2.57mm) in4 in1 no1 transistor count: 145;substrate connected to v+. downloaded from: http:///
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