-.--- . ? 8 r~ .. ......- --- --_c- ...--.---..- '-'--"" ~---. . -.. analog lilli devices 3~ digit line powered functional dpm . . <~~:\:~;~: ~y,~~~5~~)1~\t!:~~f/:~~;:j.~ti0~:~.:~~::~i}':.~~~z:h~f>,~ .;%:~l;~1f~ l) ~:~~~;~~l~c;.~~: ?;~}+]ltep.d 2022. ~,.~ features space and power for large 3~" x 4" (95 x 102mm) custom design printed circuit card "second generation" mos/lsi design large 0.6" (13mm) led display ac line powered, universal transformer i:1.999vdc full scale range auto zero correction ad2022: limited differential input and character serial data output ad2022/1: full floating input isolation and parallel bcd data output optional ratiometric operation industry standard case design applications dedicated transducer readout for temperature, pressure, ph, or any other physical parameter custom test and measurement equipment with customer designed signal conditioning, and/or logic circuitry on printed circuit board internal to dpm general description the ad2022 is a low cost 3~ digit, ac line powered, "func:- tional" dpm. the ad2022 accommodates a large 3.75" x." (95 x 102mm) printed circuit board with over 12 square inches (7700mm2) of usable circuit space for adding extra signal con- ditioning and/or logic circuitry. for powering additional signal conditioning circuitry. regulated i:12vdc at 20ma is provided. for logic circuitry, +svdc at l00ma referenced to digital ,round is available (3oma if the isolated parallel bcd output option is specified). the special function board is connected to the ad2022 convener board via ndbon cable. the function board also has an external 18 or 36 pin input/output connec:- tor with gold plated fingers. a standard breadboarding card is available or special layout printed circuit board (to suit the particular application) can be used. the ad2022 convener measures bipolar input voltages over the full scale range of i:l.999vdc with an accuracy of %a.os" reading fo.02s'16 fun scale %1 digit. the design of special signal conditioning circuitry is simplified by the ad2022 limited differential input (standard) which reduces effects of ground loops and provides common mode noise rejection. the ad2022 displays readings on large 0.5" (13mm) high led displays. both (+) and h polarities are indicated. controls arc provided fa: blanking the display and for selection of any of three decimal points. a fr;nrth decimal point is selectable by internal jurj;per. the ad20?2 is availabj~ :~, vperation at any ac line voltage and freq'!'::.'h:y required :i-..'..;"..ghout the world. and, since the ad20:!2., ..> a "univ::rt."'t' ~.:;:'isfonner, simple bridging be- t\\'ec'\ .9~' pads all:::':- ~. . "'$'j '~ie(tion of ac input voltage. inforrn;:',io'. ; nnished by "~".:~.,,,;,; d:!vices is believed to be 8ccur8te end reii',!;!; iov(llver. no res~(1r.~ibilitv is ~sumed by analog devlcft for i<:s':<: ..'" for any i.~j:if";>' d.11.$ ;of patenn or other rights of third partie-- nay resuli '..;,. ,~ 'se. r~o ii<:ense is granted by implica- tion ,se under;,;.. .. " '" <)r p"u~nt fi\iits of analog devices. ~ thus, only minimum stocking for expon is required to satisfy widely varying circumstances of ac power. second generation design the use of mos/lsi (metal oxide semiconductor/large scale integration) integrated circuits in the ad2022 reduces the number of components, cuts power consumption and greatly increases reliability . , versatiuty for signal conditioning the standard ac26ls function card is laid out for easy bread- boarding. solder pads arc provided on 0.100 inch spacidg to fit standard dual in-line packages and other components. special tracks arc provided for bussing power to components. provision exists on the front of the ac261s to mount two trim pots which can be adjusted from the front of the dpm after removing the snap-on lens. ribbon cable connects the ac261s breadboarding card (or same size special layout func:- tion card) to the dpm convener card. regulated i:12vdc and regulated +svdc arc available to power special circuitry. height clearance allows mounting modules up to 0.65" high. if ratio- metric operation is desired, one plated-through hole on the convener board is drilled out, and the reference-in and rcference-out connections are made on the function board. versatiuty for data interfacing the bcd data output of the ad2022 is presented in bit parallel, character serial format compatible with cmos logic systems. some applications, such as interfacing with microprocessors. arc simplified with this data fonnat. applications involving line printers or comparators often require parallel bcd data out- puts. the ad202211 is an optiopal version of the dpm that (co"ti,,"~d 0" fhlg~ j) route 1 industria' park; p.o. box 280; norwood, mass. 02062 tel: 617/329-4700 twx: 710/394-6577 west coast mid.west tex. 213/595-1783 3121894-3300 214/231-6094 obsolete
, -' ""'--"~'-- ~ ..~._-= .. . .. -...-...... specifications (typical at +2soc and nominal power supply voltage) ..>ispla v output . lilht emini"l diode (led), srven qment display read. outs, o,s" (13mm) hilh for 3 data dilits, 100" overra~ and polarity indil:ation, overload indil:ated by olshina display, polarity remains valid. . drcimal points (3) selectable at input connector (dp 4xxx. selectable by internal jumper at v 3) . display blankinl analoginpvt . confiluration: data outputs (see applications section for details on the data outputs)' bit parallel. character serial bcd data outputs (standard) 4 bcd data bits, positive true iocic (cmos, lpttl or lp sehonky compatible, i lp srhonky load) 4 dilit strobes (cmos, ttl compatible, i ttl load) polarity (cmos, ttl compatible, i ttl load),l.oj1c "i" indicates positive polarity clol:k output (cmos, ttl compatible, i ttl load) status output (cmos, ttl compatible, 1 ttl load) '1olated parallel bcd outputs (qptional. ad202211 only) 3 bcd dijits, overranee, ovrrload and dati ready outputs ml compatible, 4 ttl loads). bcd data outputs arc latched, positive true iocil:. overload output is losic "0" for inputs ifeater than full sew rlllje,lojic "i" when other data outputs are valid. polarity output (ttl compatible, 4 ttl loads latched) indicatrs positive polar it)' when hilh (lolic "1"), dijital outputs arc full)' isolated from input circuitry; allloiiic levels arc rdrrrnced to dijitallround. power input . ac line 50-400hz . power consumption (with dpm supplyi"l mix rated function card currents): 6.2 watts at 60hz; 6.4 watts at 50hz; 6.0 watts at 400hz function card power . %12vdc at 2oma (isolated on ad202211) . +5vdc at l00ma (30ma with "i" option) . accuracy: %10% . load rtlulation: 2" for 0 to 1~ load variation . line rtlulation: 2'" for -10 to +10% line variation . temperature coefficient: %500ppm/oc calibration adjustments . gain . zero: capability for system zero adjustment; meter is drift corrected . recommended recalibrarion interval: six months ad2022 - bipolar, limited differential ad202211 - bipolar, floatine . %i,999vdc full scale rllije . automatic polarity . auto zero . input impedance: l00mn . bias current: 5opa . ovrrvoltlle protection: %200v peak sustained . external referencevoltlle ranee: +6.1v to +6.7v (for details, see ratiomerric operation under applying the ad2022,) accuracy . %0.05" readinl %0.025'" full scale %1 dijit' . resolution: imv . tem.r.erature range2 : 0 to +50c operari"l; -25c to +85 c storlie . temperature coefficient: gain: 5oppmlc zero: auto zero . warm-up time to rated accuracy: less than one minute . senling time to rated accurac)': 0.5 seconds (-full scale to +full seale) normal mode rejection . 4odb at 50-60hz (convener clol:k frequency can be trimmed for greater rejection) common mode rejection . limited differential mode: 4odb at dc and from 50hz to 1khz. joeib from >dc to <50hz, cmv, %200mv peak mix. . floated on power supply' or with ad2022/11nput isola. -tion: loodb at 300v rms mix. cmv,dvan/dt < 106v/sec. ikn imbalance. size . 3.92"w x 1.67"h x 4,48"d (100 x 42 x 114mm) . panel cutout: 3.930" x 1.682" (99.8 x 42.7mm) weight . ad2022 without function i:ifd: 15 ounces (425 pams) . ac2615 breadboardi"l function card: 1 ounce (30 ifams) options - ordering guide. . ac power inputs (no cost option) ad2022 - 117vac ] ad20221e - 220vac ad20221f - l00vac %10% ad2022/h - 2.40v ac . ilolated parallel bcd (see pricidj pille) ad2022/1 . display lens optionss lens 7 - red with adi loso lens 8 - red without adi loso . function card ac2615, breadboarding function card with connector (ad2022 includes interconnecti"l ribbon cable) . ad2022 convener card connector 30 pin. 0.156" spaci"l card edle connector. vikidj 2vk150/1.2 optional: order ac1501 at $3,50 each pricing . ad2022: $142 (1-9). all power supply options . ad202211: sjrj (1-9) . ac2615 function card: $15 (1-9),l:onnector(s) included conversion rate . 5 conversions per second . hold and read on command control inputs displa," blmkin!! (ttl/dtl compatible, 1 ttl load), logic "0" or iroundi"l blanks entire display except for decimal points; losic "i" or open circuit for normal opera- tion. display blanking has no effect on output data. display is valid immediately upon removal of blankinl input, convener hold (cmos, ttl/dtl compatible, i lpttl load). logic "0" or grounding causes dpm to cease conver. sions and display data from last conversion; losic "i" or open circuit for normal operation. after "convener hold" is removrd. one or two conversions are needed before read- idj and bcd data are valid. drcimal points (not ttl compatible), lojic "0" or ,round- ing illuminates desired decimal point. external drivr circuit- ry must sink 25ma peak at a 25" duty cycle. when decimal point is illuminated. data hold (ad202211 only; ttl/dtl compatible, 1 ttl load). logic "0" or grounding inhibits updating of latched parallel output data of ad2022/1. losic "i" or open circuit allows data to be updated after nch dpm i:onversion. this input has no effect on the normal conversion of the dpm and its display. 'cuaranteed at +2'.c 'cuaranteed a no control inputs or data outputs can m uwd when the adzozz is noated on the po_r ..pply transfolmer at hip common mode voiu,... restriction docs not apply to adzozzij, toniy one ac power ..pply input may be ipeciroed, fte "i" oprioa all be ordered with any power ..pply input optioe. i lens 7 is ..pplied if do lens optiod is lpccirled. specification. ..bjen to ell...,. without nocice. . 0 0 ~ obsolete
., " . -" --, , -,._.. ---, ~& :"i; ,~.- .- .w-o. ...~, . ,'-. -" "-' ""'" _0'- -.,.,,--'" . ~-~#i.~~ii:~~~,~.~~i~//~:::~~~'j~:~~::~::.6";'f"'<,':-';~,~ ~/?}.~ ~.://~~ :ff~/.:i;:~~:}:~i;.~~/-:~ applying "~e ,ad.20.22 ~<. - .~ (co"tinwd from page i) provides isolated character parallel bcd data outputs that are til ~mpatible. the parallel dau output is fully latched. use of the isolated parallel bcd output option allows accommoda. tion of up to joov rms common mode voltage between analog inputs and digital ground. ad2022 bas two "hold" inputs. the "convener hold" stops dpm conversions and inhibits both the display and the data outputs from changing. the "data hold" (ad202211 only) pre- vents the data outputs from changing. but the dpm continues to convert and update the display. standard packaging the ad2022 is packaged in analog devices' ac line powered dpm case which uses the same panel cutout as most other ac line powered dpms from other manufacturers. in addition. the pin connections for the ad2022 convener board are the same as for the ad2009, ad2016 and dpms available from several other manufacturers. r ~" designed and built for reliability even beyond the inherent advantages of the lsiic design and led displays, the ad2022 has had extreme care taken in its design and manufacture to insure reliability. manufacturing processes are monitored by continual quality assurance inspec- tions to insure proper workmanship and testing. automatic equipment is used to test each dpm, both at the board level and at ('mal assembly, to assure fault free performance. and, prior to shipment, each ad2022 must pass one full week of failure.fju, +sooc cycled power bum.in. applying the ad2022 function card mechanical considerations the ad2022 function card capability is designed to accomm~ date special signal conditioning circuitry for user-designed measurements. a speciaj breadboard card (ac261s, see figure 1) is available for testing circuit designs and for small quantity producrion. for larger quantity production, special pcb layouts can be generated. custom function cards with special layouts should conform to the oudine dimensions, hole sizes and hole placements shown in figure 2. forbidden component areas and height rntrictions for both the ac261s and custom pcb cards arc shown in figure j. l~ etch side t figure 1. ac261s breadboarding card provision is made on the ac261s breadboard card and in the mechanical layout of the ad2022 to allow mounting two trim- pots (for external trim and calibration) on the function card. i, ... l~ ,.. ... ui-i it :' ---ft.""'.""'m,"'" r ;-r i '~kn i 1- i .~=lc:::"::ii ui 1 1 "'."'0"""""""'_1 ~- 1 -\- lw :.lr= i~:j .a2 i ii i xi / i- ... ~ ~ uii -:j uoo uo ...... cham... "..acii 1m """d' a,a ..- figure 2. dimensions of urge function ciird .. cowonlom 0. "em . ,"iu.ia 8d'"-" &a i _i0oi"" """tlimoulo.1 "0<:"10'" tmis a.'. 0'.,.. ""'0 is """mid to _v'oi ".,-'v" acciis'- '_00- 'j t ~ i ud i" i i . i 0 d" u. -d'" 1" [$ '- _0..'. ,- i cut4ut i i -,0 i -"'.. i o m.o... i .. i i i j'. __""is 0. iqu.. -1.11 -,. -"'0 1.00 ud -~ &1."_""1_"'-"_- _. iuui'..' miai a.c,dal ur.... ""ia" u _00- """""18-,-""iai'8" figure 3. urge card forbidden areas and height restrictions by proper location of these pots, it is possible to have them accessible from the front panel after removing the ad2022 snap-on lens. refer to figure 11 for details. it is also possible to use a small function card (1.10" x 1.43") in pla~e of the large card. this is useful if only a limited amount ~f signal conditioning circuitry is necessary. mechanical layout of this card is shown in figure 4. interconnection is by stand. ard lead frame on 0.1" spacing. --r---r '.. ~ ~"ti~'" i- miala.o ..jii"'" ... m'a. liio~om m'ac ,........ i i- ' i ' i ' : c -"""" a! 11 - .._~~- t i d ... iuuuuuuu' uii-l ~ j.:u.- t uduai. ...... .d=--=- &.0,1.""- ... caon actii "". t8_~ 0. iqui i'" fou._1 julaa..."" iuui'.. iuggmio8omotn"..."m,"'" figure 4. dimensions of small function ciird .1. obsolete
- - .. .--..- -- " '~oi-a.."""'-:""--'-'.r-..~ <.- - -,... - >. . - -.. -.. . .. - function card installation and removal from cue ;[0 install a function card, or to remove a combined converter and function ard assembly, it is first necessary to remove me rear plate of the dpm case: (figure 11). this can be accom- plished by removing the four phillips head machine screws which hold the rear plate to the side extrusions. the printed circuit board(s) can then slide out of the slot(s). to add the ac261s or same size special layout board, itart with the converter card laid down with the component side up. place the function ard, component side down, over the con- verter card so that the transformer can be seen through the cutout. a 10 conductor flat ribbon cable is factory assembled at one end to the converter card. insert the pins of the free end of the ribbon cable into the outside ten holes of the function card and solder into place. clean soldered joints with isopropyl alcohol. a small function card (figure 4) is installed on the converter card in place of the ribbon cable, components facing inward. for installation in the case, slide the board(s) into the slot(s) until the assembly is fully forward. with the case: right side up (ad2022 model idnltification on top) the converter card should be in the lower slot. re-install the rear plate with four #4 machine screws. interconnections between boards as described above. the ac261s or same size special layout board connects directly to the ad2022 converter card via a 10 conductor flat ribbon cable. the combined assembly, out of the case, can be laid flat on a workbench for ease: in trouble- -)oting and modifying circuitry (figure s). figure 5. conllerter/function assembly l..id fi.t nil ... .. _ogdi -lo - } loge_a. ... .1iv --.. .:..~.~ -.---- v .1iv } -..- --.. .1iv ... -.n .. 10 - +-- v-'al ,hi""" -..--. --- --.. -- ..... ---7 1it"-miii _1__- ~.. ipln- ...- ~ --'-110"""'_-- ... ~':~"':~""iu. figure (). :. i important note: tbne is ac li"e floltag~ 0" tbe primary oftbe ad2022 transformn. tbis c." be!!.!!:i dant'rous if proper cde is not exncised. workiltg surfaces sbould be clean. afloid toucbing pc tracks and components i" tbe pown supply dell. whether large card with ribbon cable or small card mounted directly on the converter board, the electrical connections available between boards are as follows: eo 0 pin 1 function reference source, internal +6.1v to +6.7v with respect to analog ground reference input, +6.1v to +6.7v (drill out hole x16 to use external reference) +svdc %10%, referenced to digital ground +12vdc :tl0% referenced to analog ground analog ground ;i:- -12vdc :tl0%, referenced to analog ground analog input to a/d converter spare (hole y7 on converter board) digital ground ~ analog input of dpm (pin 2 on ad2022 i/o connector) 2 3 4 5 6 7 8 9 10 the ad2022 block diagram (figure 6) also shows these con- nections and how they relate to the ad2022 convener. function card input/output connections with a large size function card, there are two ways of making signal connections. the ac26ls breadboard card has iu own 18 pin card edge connector for inputs and outpuu. customer - designed boards can have 18 or 36 pin card edge connectors. thus, if desired, the converter card edge connector (pi, figures 9 and 10) can be used exc:lusively for power and data outputs, and the function card connector can be used for signal inputs and special function outpuu. alternatively, where there are only limited input and output connections required, external connections to the function card can be made via the pi con- nector and the interconnecting ribbon cable. in this fashion, signals can be brought in via pion pins 2 (signal input), 10 (analog ground), a (spare, hole y4) and b(spare, hole ys). if this latter method is used, it may be necessary to remove rio (input protection and filter resistor) and possibly cl (input filter capacitor) in order to prevent undesired circuit 8 .. d'i'di ...1i'bti 0.1 ii'im 1121 i[iiik "","al ............ i i - -tt.' i ., ~ ---. ~ -tl""'- '" di'i'i"ai!tii iii ita... " y:-!".k !)jag,.", ""'-d ""'a out iicd._aoln.ci1ti obsolete
- ' " - . "'~ ~~~4~:-{~.t"'?:;'f5: 7"":':i-i;~,'~"~;~~~::~~;~'~"'{~" \;~:':::.~';':~;:~.:~~>t~.:;;::~:.. //:;h.;~~.131:~t~a:.:1tt~::~w:'~.".'~"~i~ . interacooas. locations of ci and rio can be found in figure 7. when small function cards are used, pi is the only method of access.. r10 c1 x18 figure 7. loclltionsof rto, ct, xt6, y411nd y5. ~ power ay8iiable for custom circuitry power is available for both analog and digital circuits on the function card. the :!:12v power will deliver up to 2oma. this analos power is referenced to analog ground ~ . the +5v power will supply 10oma on ad2022 models (3oma on ad202211 versions with isolated parallel bcd outputs); +5v is refercnc:ed to digital ground \i . with ad2022 limited differential or ad202211 isolated input, it is important that power connections and signal inputs be referred to the appro- priate pound. ratiomctric operation the ad2022 normally makes conversions referenced to a stable +6.4v internal reference. if ratio metric measurements are desired (such as with bridge transducers), it is necessary to drill out (drill size #65, 0.035" dia.) the plated through hole labeled x16 (figure 7). the internal reference (pin 1 on ribbon inter- coddett cable) will then be disconnected from the aid con- verter add a reference voltage input (pin 2 on the cable) will be available to accept stable external reference voltages in the range of +6.iv to +6.7v.ln a ratiomerric mode, the dpm will convcn with the uansfer function: display iii:: 6400 e ein ref the front panel convener gain adjustment is still usable in the rarionxtric mode, with an adjustment rqe of approximately %5". it is important to remember that the reference is with respect to analog ground ~ ,not digjtal ~ or earth ground ,j, if the ad2022's internal reference voltage is used for external circuiuy, an op amp buffer should be used to assure sufficient drive current capability (internal reference can source up to loof,la without buffering). '. decimal points grounding or logic "0" applied to the appropriate pin will illuminate the desired decimal point. external drive circuitry, if used. must sink 25ma peak at a 25% duty cycle when ~e decimal paine is turned on. . r --, dis91ay blankin, grounding or logic "0" blanks the entire ad2022 display with the exception of the decimal points on the tens and hundreds digit. the display is valid immediately upon removal of a blanking signal. display blanking has no effect on the bcd data output (remains valid during display blanking). converter hold grounding or logic "0" causes the dpm to cease conversions and display the data from the last conversion. after a "conver- ter hold" is removed, the auto zero circuitry requires one or two conversions before the display and data outputs arc again valid. data hold (ad2022/1 only) grounding or logic "0" on this input inhibits updating of the parallel bcd outputs of the ad202211. if the parallel data is interfaced to a printer, comparator, computer or other equip' ment requiring the data to be held stable for proper operation, the data hold input should be used to prevent data updating. the dpm itself will continue making conversions and displaying results. after a data hold is removed, the bcd data output is updated with valid data on the next completion of a conver- sion cycle. extended ranje measurements although the full scale rqe of the ad2022 is 1999 counts, and the display flashes to indicate overrange beyond this point, measurements are actually made up to approximately 3000 counts. since it is impossible to display "2" in the most signifi- cant digit of the ad2022, overrange from 2000 to 2999 counts produces a flashing display of the 3 least significant digits only (a reading of 2.300mv displays as "300" flashing). overrange beyond 2999 counts is indicated by a constant number flashing. thus, one can use the extra rqe measurements as a guide to reducing the input to the normal range. bcd outputs on the standard ad2022 are valid (with appropriate decoding) up through the 3000 count range. the parallel bcd outputs of the ad202211 beyond 1999 counts go to logic "0" on all bcd lines as does the overload output. interfac:in2 data outputs - oiaracter serial bcd the bcd data outputs on the standard ad2022 are presented in bit parallel character serial format. there are four bcd bit outputs (1,2,4,8) and four digit outputs (10,10\,102,103, called dl, d2, d3 and d4 respectively). the four bits represent- ing each digit are gated onto the bcd output lines in the con- tinuously repeated sequence dl, d3, d2, d4. at any given time, the bcd output is valid for the digit whose digit line is high (logic "i"). this serial output data is valid except when it is being updated, which occurs within 2 milliseconds after the status line goes low, indicating the end of a conversion (see figure 8). -- .. ""ocid -- r-~.~~'.:""~ i.1 ( eye... t-- - ---+-- ... --i =-1 . . ] l- 1l- ad2iii2j1 da"'iwid\' ~-_.j ~"~~ ~;"-";""~.i:"':~ji~ ,-'"""";,:,,,,~!;.,.i.~1':~~ figure 8. ao2022 timing oisgrllm interfacin, dati outputs - parallel bcd the ad202211 has data outputs in a full parallel bcd fonnat. the output dau is latched and is valid except for a 2ms period at the end of conversion when the "data ready" output is -5- obsolete
high (~ figure 8). as described on the preceding pile, the "data hold" input can be used to inhibit updating of the paral- lel data outputs without affecting dpm conversions or the dpm display. converter calibration procedure a precision voltlle reference is required. the location of the calibration potentiometers is shown in figure 11. always ad- just the zero offset before the gain if uro adjustment is necessary . zero adjustment: short the signal inputs (pins 2 and 10) . and adjust the zero offset potentiometer until the meter reads 000. gain adjustment: apply an input of +1.800v and adjust the gain potentiometer until the meter reads 1800 exactly. this calibration procedure refers to the ad2022 converter section only. calibration of any signal conditioning circuitry on the function card is, of course, not considered. - pin designations kiv iiiic -!lid coiiiiiiectioni figure 9. ad2022 conflflctor pi li- ~ri~ ..r "- ~ 1.18"" ... oi'tlon -::-0 10 '0 h 0 a02022 powell supl'\.v ~ ~:~:::::, 100 vac 10.10 hi no vn:. 10-10 hi .a .. analog wdevices "oo' ..... " li... on_a' 'uioct- ciao ta.. fot 'dca1- .~. figure ". ad2022 mechanic.' dudi,. (dimensions shown in inches and (mmjj - -- key figure 10. ad2022/1 connector pi ~ ..'" ..... -. '1.18' -( cutout ,- 10010 ~ ia.?> ".25, ~ i j-j-- =>~:j: ~~, ! : ~ : i i i i i i i ~= ~:\~~':'ting ii! ioito "'ot '-- ,..a ./ llor: "" ""e" ca'" ::- '~ ~'5)= t -- octiluctioois , ""01 ,,",t""ough'_' cutout '-'"","0"_' ,. """"""'ing ..or:. ""o"'of "" ""' iodii ,. t_te.. """""..c ..or:. t."'"", loa"" _uo..", lie"". ""' to 'an" ido - ovtatiomti"" . """""""'0'_'0'_. figure 12. ad2022 mounting instructions (dimensions shown in inches /lnd (mm)) ,.. -6- - - - - "n iii' pin 'unction 1 nt i 8icinal input i "lotus ip1mm . polarity . nt . 1m , 1cd2' . 1cd2' . clock output 10 analog ground n nt 11 d3 13 dlplav blank ,. nt 11 n:. line high i'tn lief "n 'unctioiii a nt (holi v.' . nt cttoli vii c nt d conviiitir hold i 02 , nt h' icd z' j icd2' k d' l xx.x ii dp2 x.xx . digital oiiound , lip, .xxx r "ield iearth giioundi i n:. line low aot ..... on- - ci>n1m:t rioct- could ... ..., 1-'1 '-=" u.. ""'-no _.'gllc":u....ooue".., @ ./":.""oc ii> ...-- 14>1' si:!llljoa i oo,..ny @ > .. @ -l. 0 0 .. .n in..... 8 ..... -n. ".711 "n ref "n fulllctioiii , data hold 2 signal input i data ready . polarity i icd. . 1cd2 7 icd 10 . icd20 . icd 100 10 analog ground " icd- 12 icd 200 13 dlplav ilank ,. over range " n:. line high "iii ref "n function a nc (hole yii . nc (hole vi) c overload d coi\i\ierter hold i lcd' , icdi h icd '0 j icd40 k icd '00 l iip3 xx.x ii lip! x.xx . digital ground , lip, .xxx r ..ield (earth ground) i n:. line low obsolete
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