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wideband 4 ghz, 43 db isolation at 1 ghz, cmos 1.65 v to 2.75 v, 2:1 mux/spdt switches adg918/adg919 rev. a in fo rmation furn ished by an alog d e v i c e s is believed to be accurate and reliable. how e ver, n o resp on sibili ty is assume d b y a n alog de vices fo r its use, nor for an y i n fri n geme nt s of p a t e nt s or ot h e r ri ght s o f th ird parties th at may result fro m its use . s p ecificatio n s subj ec t to ch an g e witho u t n o tice. no licen s e is g r an te d by implicati o n or ot herwi s e u n der a n y p a t e nt or p a t e nt ri ghts of analog de v i ces. trademarks an d registered tra d ema r ks are the prop erty o f their respective ow ners. one technolog y way, p.o . box 9106, norwood, ma 02062-9106, u.s.a. t e l: 781. 329. 4 700 www.analog.com fax: 781. 326. 87 03 ? 2004 analog de vices, i n c. al l r i ght s r e ser v ed . features wideband swit ch: ?3 db @ 4 g hz absorptive/reflective switches high off isolati on (43 db @ 1 g hz) low insertion loss (0.8 db @1 ghz) single 1.65 v t o 2.75 v power supply cmos/lvttl control logic 8-lea d msop a n d tiny 3 mm 3 mm lfcsp pa ckages low power con s umption (<1 a ) applic ati o ns wireless comm unications general-purpo s e rf switching dual -band app l ications high speed fi lt er selection digital transcei ver front end s w itch if switching tuner modules antenna di vers ity switching func tio n a l block di agrams rf2 rf1 ctrl adg918 rfc 50 ? 50 ? adg919 rf2 rf1 ctrl rfc 03335-a-001 fi g u r e 1 . general description the ad g918 /ad g 919 a r e wideba nd swi t ch es usin g a cm os p r o c ess t o p r o v i d e hi g h is ola t ion an d lo w ins e r t io n loss t o 1 gh z. th e ad g918 is a n a b s o r p ti v e (ma t ch e d ) swi t ch ha vin g 50 ? t e r m ina t e d sh un t l e gs, w h ile the ad g919 is a r e f l ec ti v e swi t c h . th es e de v i ces a r e desig n e d s u c h tha t the is ola t io n is hig h o v er t h e dc t o 1 gh z f r eq u e n c y ra n g e . the y ha v e o n -bo a rd cm os co n t r o l log i c, th us e l imina t ing t h e n e e d f o r ext e r n al c o n t ro l l i n g c i rc u i t r y . t h e c o n t r o l i n put s are b o t h c m o s a n d frequency (hz) 10k 100k 1m 10m 100m 1g 10g ?100 ?9 0 ?7 0 ?6 0 ?5 0 ?4 0 ?3 0 ?8 0 ? 2 0 ?1 0 0 is olation (db) s21 v dd = 2.5v t a = 25c s12 03335-a - 003 fi g u r e 2 . o f f i s o l a t i o n v s . fr e q u e n c y l v t t l com p a t ib le . th e lo w p o w e r co n s um p t ion o f th e s e cmos de vices mak e s t h e m ide a l l y s u i t e d t o wir e les s a p plic a t io n s and genera l-p u r p os e hig h f r e q uen c y swi t ch in g . product highlights 1. C43 db of f i s ola t io n @ 1 gh z. 2. 0.8 db i n s e r t io n l o s s @ 1 g h z. 3. t i n y 8-l e ad mso p /lfcs p p a c k a g es. frequency (hz) 10k 100k 1m 10m 100m 1g 10g ? 3.2 ? 2.8 ? 2.6 ? 2.4 ? 2.2 ? 1.8 ? 1.6 ? 1.4 ? 1.2 ? 1.0 ? 2.0 ? 3.0 ? 0 . 8 ? 0.6 ? 0.4 in ser tion loss ( d b ) v dd = 2.5v t a = 25c 03335-a - 004 f i gur e 3 . inser t io n l o ss vs . f r equenc y
adg918/adg919 rev. a | page 2 of 16 table of contents adg918/adg919Cspecifications ................................................. 3 absolute maximum ratings ............................................................ 4 esd caution .................................................................................. 4 pin configuration and function descriptions ............................. 5 ter mi nolo g y ...................................................................................... 6 typical performance characteristics ............................................. 7 test circ u its ..................................................................................... 10 applications ..................................................................................... 12 absorptive vs. reflective ........................................................... 12 wireless metering ....................................................................... 12 tuner mo du les ............................................................................ 12 filter selection ............................................................................ 12 adg9xx evaluation board ........................................................... 13 outline dimensions ....................................................................... 14 ordering guide .......................................................................... 14 revision history 9/04changed from rev. 0 to rev. a updated format..................................................................universal change to data sheet title .1 change to features.....1 change to product high lights ...1 changes to specifications......3 change to adg9xx evaluation board section....13 changes to ordering guide.14 8/03 revision 0: initial version
adg918/adg919 rev. a | page 3 of 16 specifications table 1. v dd = 1.65 v to 2.75 v, gnd = 0 v, input power = 0 dbm, all specifications t min to t max , unless otherwise noted. 1 b version parameter symbol conditions min typ 2 max unit ac electrical characteristics operating frequency 3 dc 2 ghz 3 db frequency 4 4 ghz input power 4 0 v dc bias 7 dbm 0.5 v dc bias 16 dbm insertion loss s 21 , s 12 dc to 100 mhz; v dd = 2.5 v 10% 0.4 0.7 db 500 mhz; v dd = 2.5 v 10% 0.5 0.8 db 1000 mhz; v dd = 2.5 v 10% 0.8 1.25 db isolationrfc to rf1/rf2 s 21 , s 12 100 mhz 57 60 db (cp package) 500 mhz 46 49 db 1000 mhz 36 43 db isolationrfc to rf1/rf2 s 21 , s 12 100 mhz 55 60 db (rm package) 500 mhz 43 47 db 1000 mhz 34 37 db isolationrf1 to rf2 (crosstalk) s 21 , s 12 100 mhz 55 58 (cp package) 500 mhz 41 44 1000 mhz 31 37 isolationrf1 to rf2 (crosstalk) s 21 , s 12 100 mhz 54 57 (rm package) 500 mhz 39 42 1000 mhz 31 33 return loss (on channel) 4 s 11 , s 22 dc to 100 mhz 21 27 db 500 mhz 22 27 db 1000 mhz 22 26 db return loss (off channel) 4 s 11 , s 22 dc to 100 mhz 18 23 db adg918 500 mhz 17 21 db 1000 mhz 16 20 db on switching time 4 t on 50% ctrl to 90% rf 6.6 10 ns off switching time 4 t off 50% ctrl to 10% rf 6.5 9.5 ns rise time 4 t rise 10% to 90% rf 6.1 9 ns fall time 4 t fall 90% to 10% rf 6.1 9 ns 1 db compression 4 p C1 db 1000 mhz 17 dbm third order intermodulation intercept ip 3 900 mhz/901 mhz, 4 dbm 30 36 dbm video feedthrough 5 2.5 mv p-p dc electrical characteristics input high voltage v inh v dd = 2.25 v to 2.75 v 1.7 v v inh v dd = 1.65 v to 1.95 v 0.65 v cc v input low voltage v inl v dd = 2.25 v to 2.75 v 0.7 v v inl v dd = 1.65 v to 1.95 v 0.35 v cc v input leakage current i i 0 v in 2.75 v 0.1 1 a capacitance 4 rf1/rf2, rf port on capacitance c rf on f = 1 mhz 1.6 pf ctrl input capacitance c ctrl f = 1 mhz 2 pf power requirements v dd 1.65 2.75 v quiescent power supply current i dd digital inputs = 0 v or v dd 0.1 1 a 1 temperature range b version: ?40c to +85c. 2 typical values are at v dd = 2.5 v and 25c, unle ss otherwise stated. 3 point at which insertion loss degrades by 1 db. 4 guaranteed by design, not subject to production test. 5 the dc transience at the output of any port of the switch when the control voltage is switched from high to low or lo w to high in a 50 ? test setup, measured with 1 ns rise time pulses and 500 mhz bandwidth.
adg918/adg919 r e v. a | pa ge 4 o f 1 6 absolute maximum ratings 1 table 2. (t a = 25c, u n less otherwise n o ted.) p a r a m e t e r r a t i n g v dd to gnd C0.5 v to +4 v inputs to gnd C0.5 v to v dd + 0.3 v 2 continuous current 30 ma input power 18 dbm operating tem p erature range industrial (b ve rsion) C40c to +85c storage temperature range C65c to +150c junction tempe r ature 150c msop package ja thermal im pedance 206c/w lfcsp package ja thermal impedance (2-l ayer board) 84c/w ja thermal impedance (4-l ayer board) 48c/w lead temperature, soldering (10 sec) 300c ir reflow, peak temperature (<20 sec) 235c esd 1 kv notes 1 st res s es a b ove t h o se li st ed un der ab sol u t e ma xi m u m r a t i n gs m a y ca use permanent d amage to the d e vice. this is a s t ress rating onl y; functional o p e r atio n o f the device at the s e o r any o the r co nd itio ns a b o v e tho se l i s t e d in the o p e r atio nal se ctio ns of this s p e c i f ication is not impl i ed . e x pos u re to abs o l u te maximum rating co nd itio ns fo r exte nd ed pe ri od s m a y a f fect devi ce rel iabil ity. onl y one abs o l u te maximum rating may be appl ied at any one time. 2 rf1/rf2 off po rt i n puts to gr ound . .... ........... ........ ...... C0.5 v to v dd C 0.5 v esd caution esd (electrostatic discharge) sensitive device. ele c trosta tic charg e s as high as 4000 v readily accumulate on the human body and test eq uipment and can discharge wi thout detection. although this product features proprietary esd protection circu i try, permanent dama ge may occur on devices subjected to high energy electrostatic discharges. theref ore, prop er esd precautions a r e recommended to avoid perform a nce degradation or l o ss of functiona l ity.
adg918/adg919 r e v. a | pa ge 5 o f 1 6 pin conf iguration and fu nction descriptions top view (not to scale) 8 7 6 5 1 2 3 4 v dd ctrl gnd rfc rf1 gnd gnd rf2 adg918 / adg919 03335-a - 002 f i g u re 4. 8-l e ad m s op (r m - 8) 8-l e ad 3 m m x 3 m m lfc s p (c p - 8) table 3. truth table c t r l s i g n a l p a t h 0 rf2 to rfc 1 rf1 to rfc ta ble 4. pi n f u nct i on d e s c ri pt i o ns pin no. mnemonic function 1 v dd power supply in put. t h ese parts can be oper a te d from 1.65 v to 2.75 v, and v dd should be d e coupled to gnd. 2 ctrl cmos or ttl logic level; 0->rf2 to rfc 1->rf1 to rfc 3, 6, 7 gnd ground reference point for all circuitry on the part 4 rfc common rf po rt for switch 5 rf2 rf2 port 8 rf1 rf1 port
adg918/adg919 rev. a | page 6 of 16 terminology table 5. terminology parameter description v dd most positive power supply potential i dd positive supply current gnd ground (0 v) reference ctrl logic control input v inl maximum input voltage for logic 0 v inh minimum input voltage for logic 1 i inl (i inh ) input current of the digital input c in digital input capacitance t on delay between applying the digital co ntrol input and the output switching on. t off delay between applying the digital cont rol input and the output switching off. t rise rise time. time for the rf signal to rise from 10% to 90% of the on level. t fall fall time. time for the rf signal to fall from 90% to 10% of the on level. off isolation the attenuation between inp ut and output ports of the switch when the sw itch control voltage is in the off condi tion. insertion loss the attenuation between inp ut and output ports of the switch when the sw itch control voltage is in the on condition. p C1 db 1 db compression point. the rf input power level at which the switch insertion loss increases by 1 db over its low level value. it is a measure of how much power the on switch ca n handle before the insertion loss increases by 1 db. ip 3 third order intermodulation intercept. this is a measure of the power in false tone s that occur when closely spaced tones are passed through a switch, whereby the nonlinearity of the switch causes these false tones to be generated. return loss the amount of reflected power relative to the incident power at a port. large return loss indicates good matching. by measuring return loss the vswr can be ca lculated from conversion charts. vswr (voltage standing wave ratio) indicates degree of matching present at a switch rf port. video feedthrough spurious signals present at the rf ports of the switch when the control voltage is switched from high to low or low to high without an rf signal present.
adg918/adg919 r e v. a | pa ge 7 o f 1 6 typical perf orm ance cha r acte ristics ? 0 . 8 v dd = 2.5v v dd = 2.25v v dd = 2.75v t a = 25 c in ser tion loss ( d b ) ?3.2 ?2.8 ?2.6 ?2.4 ?2.2 ?1.8 ?1.6 ?1.4 ?1.2 ?1.0 ?2.0 ?3.0 ?0.6 ?0.4 ?0.2 frequency (hz) 10k 100k 1m 10m 100m 1g 10g 03335-a - 017 f i gure 5. inse r t i o n l o ss v s . f r equenc y o v er s u p p l i es (r f1/r f2, s 1 2, and s21) t a = 25c v dd = 2.75v v dd = 2.5v v dd = 2.25v ? 0.75 ? 0.65 ? 0.60 ? 0.55 ? 0.50 ? 0.45 ? 0.70 ? 0 . 4 0 ? 0.35 ? 0.30 in ser tion ( d b ) ? 0.80 frequency (hz) 10k 100k 1m 10m 100m 1g 10g 03335-a -019 f i gure 6. inse r t i o n l o ss v s . f r equenc y o v er s u p p l i es (r f 1 / r f2, s1 2, and s 21) (zo o m ed f i g u r e 5 plot ) ?3.2 ?2.8 ?2.6 ?2.4 ?2.2 ?1.8 ?1.6 ?1.4 ?1.2 ?1.0 ?2.0 ?3.0 ? 0 . 8 ?0.6 ?0.4 ?0.2 v dd = 1.65v v dd = 1.95v t a = 25c v dd = 1.8v in ser tion loss ( d b ) frequency (hz) 10k 100k 1m 10m 100m 1g 10g 03335-a - 021 f i gure 7. inse r t i o n l o ss v s . f r equenc y o v er s u p p l i es (r f1/r f2, s 1 2, and s21) +85c v dd = 2.5v ?4 0 c +25c ?3.2 ? 2.8 ? 2.6 ? 2.4 ?2.2 ? 1.8 ? 1.6 ? 1.4 ? 1.2 ?1.0 ?2.0 ?3.0 ? 0 . 8 ? 0.6 ? 0.4 ? 0.2 in ser tion loss ( d b ) frequency (hz) 10k 100k 1m 10m 100m 1g 10g 03335-a - 018 f i gur e 8 . inser t io n l o ss vs . f r equenc y o v er t e m p er a t ur e (rf1/rf2, s12, and s21) ? 2 0 s12 s21 v dd = 1.65v to 2.75v t a = 25 c ?90 ?70 ?60 ?50 ?40 ?30 ?80 ?10 0 i s olati o n (db) frequency (hz) 10k 100k 1m 10m 100m 1g 10g 03335-a - 020 f i g u re 9. is o l at io n v s . f r eque nc y o v e r s u p p l i es (r f1 /r f2, a d g9 18) s12 s21 v dd = 1.65v to 2.75v t a = 25c ?90 ?70 ?60 ?50 ?40 ?30 ?80 ? 2 0 ?10 0 is olation (db) ? 100 frequency (hz) 10k 100k 1m 10m 100m 1g 10g 03335-a - 022 f i g u re 10. is ol at i o n v s . f r eque nc y o v e r sup p l i es (r f1 /r f2, a d g91 9 )
adg918/adg919 r e v. a | pa ge 8 o f 1 6 ? 2 0 frequency (hz) 10k 100k 1m 10m 100m 1g 10g v dd = 2.5v s12 (+85c) s12 (+25c) s12 (? 40c) ?90 ?70 ?60 ?50 ?40 ?30 ?80 ?10 is olation (db) ? 100 ?90 ?70 ?60 ?50 ?40 ?30 ?80 ?10 ? 100 s21 03335-a - 023 (?40c, +25c, +85c) f i g u re 11. is ol at i o n v s . f r eque nc y o v e r t e m p er at ure (r f1 / r f2, a d g9 1 9 ) t a = 25 c v dd = 2.5v off switch (adg918) on switch ?3 5 ?4 0 ?3 0 ?2 5 ?2 0 ?1 5 ? 1 0 ?5 0 re turn los s (db) frequency (hz) 10k 100k 1m 10m 100m 1g 10g 03335-a - 026 f i g u re 12. r e t u rn l o s s v s . f r eque nc y ( r f1/r f2, s1 1) ? 1 5 t a = 25c v dd = 2.5v ?35 ?30 ?25 ?20 ?55 ?50 ?45 ?40 ?10 x? talk (db) ?70 ?60 ?65 ?75 ?80 frequency (hz) 10k 100k 1m 10m 100m 1g 10g 03335-a - 028 f i g u re 13. cros s t al k v s . f r equenc y (r f 1 /r f2 , s1 2, s2 1) ch1 = ctrl = 1v/div t rise = 6.1ns ch2 = rf1 = 100mv/div t fall = 6.1ns ch3 = rf2 = 100mv/div ch2/3 ch1 03335- a - 024 f i g u re 14. swit ch ti ming ch1 500mv ch2 1mv ? m 10.0ns ctrl rfc ch2 p-p 2.002mv 03335-a - 027 fi g u r e 1 5 . v i d e o fe e d t h r o u g h 40 35 250 350 450 550 frequency (mhz) 650 750 850 30 ip 3 (dbm) 25 20 15 10 5 0 v dd = 2.5v t a = 25 c 03335-a - 029 f i g u re 16. ip 3 vs . f r e q ue nc y
adg918/adg919 r e v. a | pa ge 9 o f 1 6 20 0 250 500 750 1000 1250 frequency (mhz) 1500 p ?1db (dbm) 2 4 6 8 10 12 14 16 18 0 v dd = 2.5v t a = 25c 03335-a - 025 f i g u re 17. p -1 d b vs . f r e q ue nc y
adg918/adg919 rev. a | page 10 of 16 test circuits * t on 50% 50% 90% 10% v ctrl v out t off v dd v dd 0.1 f v s ctrl rfx rfc gnd r l 50 ? v out 03335 -a- 009 f i g u re 18. swit ch ti ming : t on t o ff v ctrl v out 50% 50% 90% 90% 10% 10% t fall t rise v dd v dd 0.1 f v s ctrl rfx rfc gnd r l 50 ? v out 03335-a - 010 f i g u re 19. swit ch ti ming : t ris e , t f a ll v s network analyzer v ctrl off isolation = 20log v out v s v dd 0.1 f v dd 50 ? v out r l 50 ? adg919 rf2 rf1 ctrl rfc gnd 50 ? 03335-a - 011 f i g u re 20. o f f is ol a t ion v s network analyzer v ctrl inser tion loss = 20log v out v s v dd 0.1 f v dd 50 ? v out r l 50 ? adg919 rf2 rf1 ctrl rf c gnd 50 ? 03335-a - 012 f i gur e 2 1 . inser t io n l o ss v s network analyzer v ctrl crosstalk = 20log v out v s v dd 0.1 f v dd 50 ? v out r l 50 ? adg919 rf2 rf1 ctrl rfc gnd 50 ? 03335-a - 013 f i g u re 22. cros s t al k v ctrl v dd 0.1 f v dd adg919 rf2 rf1 ctrl rfc gnd nc nc oscilloscope 03335-a - 014 fi g u r e 2 3 . v i d e o fe e d t h r o u g h
adg918/adg919 rev. a | page 11 of 16 spectrum analyzer v ctrl v dd 0.1 f v dd adg919 rf2 rf1 ctrl rfc gnd 50 ? combiner rf source rf source 03335- a- 015 f i g u re 24. ip 3 spectrum analyzer v ctrl v dd 0.1 f v dd adg919 rf2 rf1 ctrl rfc gnd 50 ? rf source v s 03335-a - 016 f i g u re 25. p -1 d b * simil ar s e tups for a d g918
adg918/adg919 rev. a | page 12 of 16 appli c ations the ad g918 /ad g 919 a r e ide a l s o l u tio n s f o r lo w p o w e r , hig h f r e q uen c y a p pli c a t io ns. t h e lo w ins e r t io n loss , hig h i s ola t io n b e tw e e n p o r t s, l o w disto r t i o n , and lo w c u r r en t co n s um p t io n o f t h es e p a r t s make t h em exce l l e n t s o l u t i o n s fo r ma n y hi g h f r e q uen c y swi t chin g a p plic a t io ns. t h e m o st ob v i o u s a p plic a t ion is in a t r an smi t / r e c ei ve b l o c k, as sho w n i n t h e w i r e less m e t e r i n g b l o c k dia g ra m in f i gur e 26. oth e r a p p l i c a t io n s in c l ud e swi t c h i n g bet w een h i gh f r eq uen c y f i l t ers, as k ge ner a to r , f s k ge ner a to r , a nd an te nna d i versi t y swi t c h in man y t u n e r m o d u les. absorptive vs. reflective the ad g918 is a n a b s o r p ti ve (ma t ch e d ) swi t ch wi t h 50 ? t e r m ina t e d s h u n t legs, and t h e ad g919 is a r e f l ec ti v e s w i t ch wi th 0 ? t e r m ina t e d s h un ts t o g r o u n d . th e ad g918 a b s o r p ti ve swi t c h has a g o o d v s wr o n e a c h p o r t , r e ga r d les s o f th e s w i t ch m o de . an a b s o r p ti v e s w i t c h sh ou ld be us e d when t h er e is a n e e d f o r a g o o d v s wr tha t is lo okin g in t o t h e p o r t b u t n o t p a s s in g t h e t h r o ug h sig n al t o the co mm o n p o r t . the ad g918 is t h er efo r e ide a l fo r a p plica t io n s t h a t r e q u ir e min i m u m r e f l ecti o n s ba c k t o th e r f so ur ce . i t also e n s u r e s th a t t h e max i m u m p o wer is t r a n sfer r e d to t h e lo a d . the ad g919 r e f l ec ti v e swi t c h is s u i t ab le f o r a p p l ica t ion s w h ere hig h o f f p o r t v s wr do es n o t ma t t e r a nd t h e s w i t ch has s o m e o t h e r des i r e d p e r f o r ma n c e fe a t u r e. i t ca n b e us e d i n man y a p plic a t io n s , i n cl uding hig h sp e e d f i l t er s e le c t i o n. i n m o st cas e s, a n a b so r p ti v e sw i t c h ca n b e used i n s t ead o f a r e f l ecti v e s w i t ch , b u t n o t vic e v e rs a . wireless m e tering the ad g918 c a n b e us ed in wir e les s m e t e r i n g a p p l ic a t io n s . i t ca n be us e d in c o n j u n c t io n wi th th e ad f7020 tra n s c ei v e r i c f o r a u t i l i t y m e t e r i ng t r a n s c ei v e r a pplica t ion, p r o v i d in g t h e r e q u ir e d is ol a t i o n b e twe e n t h e t r a n smi t and r e cei v e sig n a l s. the s p d t co nf igura t io n is ol a t e s t h e hig h f r e q uen c y r e cei v e s i gn al f r o m th e h i gh f r eq u e n c y tra n s m i t . lna antenna tx/rx switch pa adg918 03335-a - 005 f i gure 26. wireles s meter i ng tuner modules the ad g918 c a n b e us ed in a t u n e r m o d u le t o swi t c h betw e e n t h e ca b l e t v i n p u t an d t h e o f f-a i r a n t e nna . this p a r t is a l s o ide a l fo r us e as a n a n t e nn a d i v e rsi t y sw i t ch, swi t chi n g dif f er en t an t e nna t o t h e t u n e r . vga antenna cable adg918/ adg919 tuner 03335-a - 006 f i g u re 27. t u n e r m o dul e s f i lter selection the ad g919 c a n b e us ed as a 2:1 dem u l t i p lex t o swi t c h hig h fr e q u e n c y s i g n a l s b e t w e e n d i ff e r e n t fi l t e r s a n d a l s o t o m u l t i p l e x th e si gn al t o t h e o u t p u t . adg919 adg919 rf1 rf2 rf1 rf2 rfc rf out rf in rfc 03335-a - 007 fi g u r e 2 8 . fi l t e r s e l e c t i o n
adg918/adg919 rev. a | page 13 of 16 adg9xx evaluation board t h e a d g9xx e v al ua ti o n boa r d allo w s d e si g n ers t o eval ua t e t h e hig h p e r f o r ma nce w i deb a nd sw i t ch es wi t h a mi nim u m o f ef fo r t . t o p r o v e t h a t t h es e de v i ces m e e t t h e us er s r e q u ir em e n ts, t h e us er o n ly r e q u ir es a p o w e r su p p ly a n d a n e tw o r k a n a l y z er a l o n g wi t h t h e e v a l u a t io n b o a r d . an a p plica t io n n o te is a v a i la b l e w i t h t h e e v a l u a t ion b o a r d a n d g i ves c o m p lete info r m a t io n on o p era t i n g t h e e v a l u a t io n b o a r d . the rfc p o r t ( s ee f i gur e 29) is co nn ec t e d thr o ug h a 50 ? ?t r ans m i s s i on l i ne to t h e top l e f t sm a c o n n e c tor j 1 . r f 1 and rf2 a r e co nn ec t e d thr o ug h 50 ? tra n smis sio n lin e s t o t h e t o p tw o s m a co nn e c t o rs j2 a nd j3, r e s p e c ti ve l y . a t h r o ug h tra n smis sio n l i ne co nne c t s j4 and j5 an d t h is tran smis sio n l i n e is us e d t o es t i ma t e t h e los s o f t h e pcb o v er t h e en vir o nm e n t a l co ndi t i on s b e ing e v a l ua te d. the b o a r d is co n s t r uc te d o f a 4 - l a yer , f r 4 ma ter i a l wi t h a die l ec tr ic co n s t a n t o f 4.3 an d an o v eral l thic k n es s o f 0.062 i n c h e s . t w o gr o u n d la y e r s wi th gr o u n d ed p l a n es p r o v i d e g r o u n d fo r the rf tra n smis sion lin e s. th e tran smis sio n l i n e s we re d e s i g n e d u s i n g a c o p l an ar w a v e g u i d e w i t h g r ou nd p l a n e m o de l using a t r ace wid t h o f 0. 052 in ch es, c l eara n c e t o g r o u n d p l a n e o f 0.030 in ch es, die l ec tr ic thic k n es s o f 0.0 29 in ch es, and a m e tal thic k n es s o f 0.014 in ch es. 03335-a - 008 f i g u re 29. a d g9x x ev aluat i on bo ar d t o p vi ew
adg918/adg919 rev. a | page 14 of 16 outline dimensions 0.80 0.60 0.40 8 0 4 85 4.90 bsc pin 1 0.65 bsc 3.00 bsc seating plane 0.15 0.00 0.38 0.22 1.10 max 3.00 bsc coplanarity 0.10 0.23 0.08 compliant to jedec standards mo-187aa f i g u re 30. 8-l e ad m i ni s m al l o u t l ine p a ck ag e [m sop ] (rm-8) di me nsio ns sho w n i n mi ll im e t e r s 1 bo t t o m view 0.50 bsc 0.60 max pin 1 indicator 1.50 ref 0.50 0.40 0.30 0.25 min 0.45 2.75 bsc sq top view 12 max 0.80 max 0. 6 5 t y p seating plane pin 1 indicator 0.90 0.85 0.80 0.30 0.23 0.18 0.05 max 0.02 nom 0.20 ref 1.90 1.75 1.60 4 1.60 1.45 1.30 3.00 bsc sq 5 8 f i g u re 31. 8-l e ad l e ad f r a m e ch ip s c al e p a ck ag e [lfcs p ] 3 mm x 3 m m b o dy (c p - 8) di me nsio ns sho w n i n mi ll im e t e r s ordering guide model temperature r a nge package desc ri ption package option branding adg918brm C40c to +85c mini sma ll outli n e package (msop) rmC8 w4b adg918brm-50 0 rl7 C40c to +85c mini sm all outli n e package (msop) rmC8 w4b adg918brm-re el C40c to +85c mini sm all outli n e package (msop) rmC8 w4b adg918brm-re el7 C40c to +85c mini sm all outli n e package (msop) rmC8 w4b adg918brmz 1 C40c to +85c mini small outli n e package (msop) rmC8 w4c adg918brmz-reel 1 C40c to +85c mini small outli n e package (msop) rmC8 w4c adg918brmz-r eel7 1 C40c to +85c mini small outli n e package (msop) rmC8 w4c adg918bcp-50 0 rl7 C40c to +85c lead frame chip scale package (lfcsp) cpC8 w4b adg918bcp-re el7 C40c to +85c lead frame chip scale package (lfcsp) cpC8 w4b adg919brm C40c to +85c mini sma ll outli n e package (msop) rmC8 w5b adg919brm-50 0 rl7 C40c to +85c mini sm all outli n e package (msop) rmC8 w5b adg919brm-re el C40c to +85c mini sma ll outli n e package (msop) rmC8 w5b adg919brm-re el7 C40c to +85c mini sm all outli n e package (msop) rmC8 w5b adg919bcp-50 0 rl7 C40c to +85c lead frame chip scale package (lfcsp) cpC8 w5b adg919bcp-re el7 C40c to +85c lead frame chip scale package (lfcsp) cpC8 w5b eval-adg918 e b e v a l u a t i o n b o a r d eval-adg919 e b e v a l u a t i o n b o a r d 1 z = pb-fre e part.
adg918/adg919 rev. a | page 15 of 16 notes
adg918/adg919 rev. a | page 16 of 16 notes ? 2004 analo g de vices, inc. all rights reserve d . tra d em arks and registered tra d ema r ks are the prop erty of their respective owners . c03335C0 C 9/04(a)

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