PM-7645 AD | Alldatasheet
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ANALOG DEVICES INC 42E D MM 0416600 0028547 4 MANA > DEVICES Multiplying CMOS D/A Converters FEATURES The PM-7545 operatas from Sto 15 volt power suppilles, offering * Preadjusted Full Scala... 21 LS8 Maximum Galn Error TTL logis compatibility at Voo. of S¥and GMOS logic compal- © Low Gain Temperatura Comffclant oun BEPC ibility at Wpp af IBY, The PM-7646 [s specified foraparation at © Small 20-Pin 0.3" Wide DIP Yop of 154, offering TTL logic input compatibility: . * PM-7545 TTL Compatible for Vig «SV f2 | © PM-7645 TTL and 6¥ CMOS Compatible for ¥, = 15¥ * High ESD Foalalancs oo PIM CONNECTIONS * Avallabte [in Ole Form ORDERING INFORMATION * cur Of a re PAGKAE:87-F1H aco Ee] oe ———<<—eD owe GF Gi ne ‘20-PIN EPOXY DIP ee Tseo PCwAPS AO eo Toeweo, oa a Ee coa.en eum #1 LB PMTSSEAR, PMPS4SEN PMTS45qP eee [Lr] is] ee see PSSS6R, BMGS4EFRL - cn fl Fal cea 20-PIN SOL #0L8B PMTSCBRCIESS «=| PMTSASFP - ors Fe] mien {S-Sutile) ois - PAGS4SF PO - | #3188 - PROSGEFS. . ee TE] pom | HLEB PMIeeSAR, BRIESEER PerEdeGr | HSB = PMSA, PRISER . #ILB - PAeEFE . i igs) #L5B - PMSA PO - a EN |) 488 - PUNE - POCONTACTPLEG — emon[] Cl Mae * Fardirdcat grocested in lee cometanea in MIL-STO-ABS, nd (49 abr (PG-Sultixy om ae | part murniter, Consult factory far Oe don cheat. 2-CONTACTLES Ll je | Gums aviilable tn earamardial ara bedestial urmgeratueeeanga parts in oot] (e]onquem ‘OarfF, slustis DIP, and TO-can packaged. (RC-Sunix) eet [a] (i cone malig rf giaz j CROSS REFERENCE aeee ‘TEMPERATURE ha ADH RANGE PMTMEAR ADIS45GUD PMPSISBR ‘ADTS4SUD FUNCTIONAL DIAGRAM PMTEEBR ADTBATD MILITARY PM7S488R ADESSO Pen PMTE45ER ADFSISGGO : PM7S48FR, aADTEa5cO EMTs ADTBESEQ (NOUSTRIAL pore TEAR ADTEH5 AC euur PMFEASGP ADTOSSGLN vure | stan | PMTe4SFP ADTSSSLN eel PMS45FP ADTSS5KN CONNERGIAL PMTe45FP ADFSS5JN [| PMPS45FPO ADI545KP Me ead GENERAL DESCRIPTION oe re Ea ‘Tha PM-7546/PM-7846 ara 12-bil CMOS multiplying DACs with anes Internal data labohes, Digital data Is Input ine 12-01 wide data format, whale GS and WR contral Inputs are activelow, Curing thin time the iaiches aretransparent allowing digital inpute direct nites connection to lhe DAG. When WA la returnedta tagiehigh, the surront cata word In the latch Is. saved. REY, G OIGITAL-TO-ANALOG CONVERTERS 2-573
ANALOG DEVICES INC 42— D MM 0416400 0028948 & MANA T-51-09-12 ABSOLUTE MAXIMUM RATINGS (T, = +25°O, unlags FAKE Ca ae otherwise noted.) * POSER Sa rsh Sie Vg 80 DGND iiewinienmniminennennnieinienn M9, 4170 22RaHemeneter py 8S Digital Ingul Volkage bo DGND wicsnccnenre. 08, My_ 0PM OPA) AGND to DGND wsenncunsnanecsncneannnnennaue 2 Ve 2o-Goatmet LOC (RC, TO) a Ea “ca Vogts Vinge tot GND. esseerrmtttentctstntettttetteettomttrenecre aot) 20-Pin SOL (8) a8 35 “cw Vent ic nT) Voo B-Gosieel PLC (PO) fl a3 sca Cpetating Temperatura Flange < ——— —— . Miltary (AP BP Grade yo cieseneon SEG bo #1 2EPG 4 Sk speci for wort ae noriing fencers La. Inapectieg fe Industrial (ER, FR, FP, FPO, FS) Grades... 40°C io 485°C ‘ a poe! ee Epacitad ‘Cammardial (GP) Grade... ntentienncsein ONO 19 +708 an" tesrtettd crak board for SOX and PLOG packages, AUN CHO TEMPS ci essieerietieeieicneascs +150 1, Sireaian above those Dued under Absolute Misinum Andege may cove Sorage TOMp@ ratte oeceseeees ee ASS 1 #15086 peertanen Cartage to the dervioe. This fe a etwas ring ony and lunctional saasnara mhporeions hr essed oc May Biel def AEA. 2 Co nstarsy " ages hhgher then Vo lass shen. GND pond en yma eee A, Tho gil ipl ae sere protected, hownver, pamnanent damage may secur on unpromicted Unies bom high-energy olochestatc aids. Koaperils in eenduetiva foarn at all teres urdil stacy $3 cata, Line proper antistatic hendkng praed 4. Bamave power bbaltve Insuring a: rarssriing erite nara thelr sacha, ELECTRICAL CHARACTERISTICS at V1 +5¥, Wace +10, Vou, OV, AGND = DXGND = OV; T, = 55°C to +125°C apply {or PHI-7E45 ARI; T, = 40°C to 485°C apply lor PM-TS4SERUPFUFPIFECUPS; T, = O°C to +70'O apply for PM-7E4SGP, unlass oth- arwise nated. 1SV operding characterlstics are shown on the following paged. re PM-TS45A/E/G PM-7S45BF PARAMETRA SYMBOL CONDITIONS MIN TYP MAK MAR urs ‘STAG ACCURACY __. Resoktion 4" tt = = 1a - - Bits re ewecy tht ‘Tan Fall Timp, Panga - - a0 - = 48 to Dattarential T= Full Tama. Range : Neatiaearhy HL toasty nes are - - ie - 4 Lae Gain error Tye sec - - HU - Fr] ae Seat Th= Full temp, Range - = 12 - = a4 us Guin Terapeeature ~ Coattitant Toipq (Hale) - FE a5 - Er] 45 epg Aan sTemparsnane _ . Do Suppty Aejastion Tas 28" - = = aoe - — aoe Genre. rae he FullTomp. Rangoon 40") = om - — ope ~~ Ty = #85°G, Wl = OB oy, _ _ 7 _ _ 0 Omeut uethepe F AL Digit npats =O —_ aA ‘Carnal al CUT “a Ta Full Temp. Range AJB Varalests = - - - = EG Varsions =e 88 = - Ea DYHAMIC PERFORMANCE _ Propagation Daisy ' T= si8e = - - - 30 (Noted 4.0, 7h bal [OUT Coed = S001, Gegy = 136F = = = = = = " Ta Full Temp. Range ‘Curren Sauing Tea ty [Te VE USO) (Mote ty - - 1 - = 1 “= a Ty HS Shae Charge a Ty Full Temp. Rage = 7 = = -— = wits _Aiscton ‘Yaar AGH phot 4) = 7 = 7_ * (AG Famahrough FT al Cat - 5 - - 6 = “our an Inguts = ay mee 2574 DIGITAL-TO-AMALOG CONVERTERS REV. C
ANALOG DEVICES INC SE D MM 0416800 0028949 & MANA ELECTRICAL CHARACTERISTICS at ¥,. = 45, Vipp=+10¥, Voy, = OV, AGND = DGND « OV; T, «55°C to +125°C apply far PAM-T545ARIGR; T, =—40°C to 485°C apply for PA-7USERIFRUPPYPPCIPFS: T, = O*G to 470°C apply fat PM-7845GP, untoss ath- ‘onaise noted, 15V oparating characteristics are shown on the folowing pages. Gentihusd Ce PM-TE46A/E/G PA-TS45BF PARAMETER avMBOL = CONDITIONS OTR MAK MN TYP Max UNITS REFERENCE PUT —— Input lecistanen Ta= Pull Bir, Range . (ka 19 10 GND} nase i Falstane 7 " 8 r " * sal ANALOG OUTPUTS _ _ Ea ‘Guiput Capackanee Ta= Full Tam, Range hte 4) Sour DePoet 02 Hie time = - mn = - ” pF Sour 0OH-0811 = Voc WH = OS = ov = - - ee) DIGITAL INPUTS. ~ Inpit High Vohape Ven a4 = = ae = - Inna Loe tte Noa T= Fell Tap, ange a = Go “ = og ¥ Theo = = 1 - _ 1 {nput Gurren tee __ Tym Fed ae, Mange - - = - _ »# ” Input Capacitance Ta = Fail Tarap, Panpa _ pence, woe OM Woe (Hate ~ = 8 = . uF BHITCHING CHARACTERISTICS ae Tinleg Diigram (hiaten 4,8 ab hip Bateot to Tye tere pre.) = =o a0 = varie stup Time *08 T, Fall Tarp. Panga Ee) - om - ™ hep Salect i Toh aaia Time tow Ty Fall Tanyp. Ranga o - - a - - ra veh Pate Ty tire OTS = wow - a with all Ty = Full Temp, Ranga a0 579 - momo - Data Goren Tht O “oD = “tO = Tine ‘a Ty Full Tarp. Aargs aD 00 = a) = = Cale Hotd Time tess Tas Fuk Tama. Range 10 = . ¥ = - a POWER SUPPLY _ “ Ta Ful Temp. Range _ _ ‘oo (Am DigHal kaput Wg, 0! Vaud) 2 - - a mA Buappehp Gere | $v i Tas 5S _ > om _ : leo Ty "Full Tap. Ranga _ ra no _ 5 0 aA (At gia! opus OV oF Yiod NOTER: 4. 12:bit manotenks evar hil tartgerature ran. All digital toputa = OV to Yor Vag ta OM 4% Incudes the wllactn at Speen max. pala T.C J. Laghe laputeara M08. gales tynical put owerane (at +25°C) iplaas than 3, Uninginieeral Rog, DAG ragbotarlowded with 1191 1414 111%, Gain aararia anak = utatie waieg tha. elrathe of Figures # ar 5, 8. Gumgle trated of +25°C vo enaura commellanen 4. GUARANTEED and NOT THSTIOD, 8. Chip select G3 mustiba exire ant or geesent beter and/or eter write WA; &. Fram digitl inpat chaags ta 99% 24 inal wratag output ‘Aa hy eg ty Reg Oe REV. ¢ ODNGITAL-TO-ANALOG CONVERTERS § 2-575
ANALOG DEVICES INC y2E D MM O41b800 0026950 4 MANA - ELECTRICAL CHARACTERISTICS at V,. =+15V, Vio. +10V, V7 = OV, AGND = OGND «OV; T, = 85°C ta +128" apply {for PM-7E45/PM-7E4SARUBR; T,, «40°C to 485°C apply lor PM-7544/P he Fe4S RUFRIFPIFPOPS; T, = O° t0-470°C apply for PM TS45/PM-TS4SGP, Unless otherwise noted. PM-TSS5VE/G PA-TS45BF PARAMETER SYMBOL COMDATaNE WN TYR MAX ) ‘STATIC ACCURACY ~ Reealufon u ® = = 2 = Bits : ‘Relea eee IML Ta= Pull Tere Mange - - awe - -— Ditecariat Ta Full Temp, Range on Te ‘Gate Ever a Tan eC = - - - hours 2,3) bad Tas Pull Terme. Range = = st _ - ” uso Gain Temperetone: Coetmetent TEC, Nene = #8 ee Gain SPaenponat ra ee DG Semply Rajection Heo = = eone = = cone AGuinFa¥eg lied Tan Full Temp, Range’¥oo™ =H —__ ato = — nom haha Tan HC, R= EE ne - _ * os _ * Oopul Latage \\ All Olgital Inga = av os Curren aU wa Tas Full Temp. Range APS Varalone - - _ -~ we en Mor = = kl = DYWAMIG PERFORMANCE ~~ Prapagalien Detary Tan 18 IMotan 4 5&7) ‘a (OUT Lacd= Ol Core 1396) -_ = 7 = * iad Ta Ful Temp. Range Curent Batting Timmy (Wo V2 86) (hota 4} - - 1 - - 1 a. our Lond = 19841 Th stre Digital Charge = = - - - 0 ‘ injection ° ia chan ‘nowt = -— * - _ = ° T= Ful Temp. Range ~ AG Feeathraus FT Vooe 2 106 f= Wa - 5 - - . - 1p our A Digit Inpute= yr REFERENCE BAPUT leet batters Tao Fuad Temp, Range [Pin 10 to GD} bul Input Psat t " " 7 " id ad ANALOG OUTPUTS - —— — Output Capacitance Ta= Full Temp. Range ~ “ [Moned} Cour Deo-Dat «04 WA» Ce ov - - 0 - - 20 Pa Sour DB0-DB1 =Vgo. WR =e - = eo - = a DIGITAL INPUTS Ineub tag Voltage Vises a3 — = cry = = Inu ie Weeet Yin Tas FUR Tam. Parga, PRATSS = = - = us . Tegel igh Vetta Mi ad - - a4 - = Ineul Law Woanape Yin Ta.3 Full Temp. Range, P-Ta46 _ _ an = = on ¥ Tha tec = 1 = = 1 feu Garen hi Tan Fue Temp. Range - = n = = ud a Ingul Capacitance Ty * Full Tomp. Ranga ooo—o6n wae OM Vou Oghotn = ~ s ~ = * - 2-678 ONGITAL-TO-ANALOG CONVERTERS: REV.
ANALOG DEVICES INC 42E Db MM 0436800 0024951 & MANA ELECTRICAL CHARACTERISTICS at V, = +15¥, Vege = +10, Vig = OV, AGND = DGND = OV; T, =-S5°C to +128°C apply (or PIA-7548 PHA-TE45ARBR; T, =~40°C 10 288°C apply for PM-7545/P hi fedGERVFRUFPIFPCIFS; T, = O°C ta 470°C apply for PHL TH4G/PM-TE4SGP, untess othensise noted. Come S—— PRTG PM-7S455/F PMTRSAEO PM-T6458/F PARAMETER S1WeOL — coNDImONe MN YP WAX wm TP OMAK UNITS: POWER SUFFUY _ Ta= Fall Tarp, Pape : ‘oo {Al gta tapeks VF Vane = = 2 _ ~ ® mA Supply Currant Tyntarc rr a ae a 2 ‘oo ‘Ta™ Pell Tarp, Panga = 5 ito - 5 it ry (Al Digit Inguts 6 oe Voi SHITCHING CHARACTERSETICS ae Timing Dingram ‘sive hat PATE AEH Leetineiai Chip Select to The taere 1 ae = “oD = Wiha Setup Tie ‘oe Tan Fall amp. Ranga a0 isa - ao ED - “ eg hen Ty = Full Teng. Range f] - = o - - * Weta Puls Tan teG eer) = ” ‘wean bai Ty Full Temp. Range 0 im og 7 -__ ™ Date Gebup fo Pa a = 2 © = Tine tos Ta Ful Temp. Rang 0 EJ - 130 ao = bad Bale Held Tira tow Ta Ful Temp, Range 1" = = * = = = SWITCHING CHARACTERISTICS Bea Timing Elagrarn — weon tf eee AE _ maaan Chip Baleet to j Thataee m0 = - 12 = = . vale: Bacup Tare id Tar Full Tame. Ange: ana = - 0 - = Lad Voile Puta Tan tara 180 = = a0 - = eran ha Ty= Fall Tare. ange 21 = = a0 - os ™ ta Setup ' Teo 225 = - 8 - = Tina ba T= Full Tap. Panga 00 - - ET - = ™ uate Held Thr tows Ta = Full Tap, Ranga 0 = = 10 = = na MOTE: i XE-Bit monatoela ear full logs riece rang, BAF digital Inputs =D $9 pg! oF ing 49 08 2 techides the affects of Sapa sia. gain TS, 7 Logfa Inpata mre MOS gases, GyPtchl input current {at +26"C} i fea than 4 Using labial Figs. ACI register beac with 1111 1011 1111,.Ganbv ror bn iA sadfubiiable using the circus of Fiperas 4 and B. 4 Secape botled at 427°C In ansura compliance, _ 4 GUARANTEED aed MOT TESTED. Chip astaet GS ravatbecomelclenl.or preserd batban ater aller wee: Fram digital spun abange to $4 al dal sralog output. INAS, te by ten REV. C OGITAL-TO-ANALOG CONVERTERS 2-577
ANALOG BEVICES INC 42E D MM 04164600 0024952 4 MANA T-51-09-12 : DICE CHARACTERISTICS: QO Oe eg | ay 2, aGND @. DBA [oF eral ie 3, DOND ®. OBE | nm) sore eee ay 4. D1 (EB) ‘4, DBT (Shri inagenaacccal band 8, Oe % oF =] | | | | ry 7, OBB 7. WA asa aS 2. 006 18 Veer (3 aia pa eS eT LGB ey we DAE BEZE 0.002 % 0100 inch, 10,200 #0, mia (250% 254mm, 6.58 aq, mm) WAFER TEST LIMITS at Ty = 26°C, Yop = 46 or #18¥, Vaer = +10V, Your = 0, AGND = DGND = 0M eS lc ce PM-TE4EG/PMTEAEG PARAMETER EOL CONDITIONS ust UNITS Rallies Acourany _ a (Exdpel i Linearity Berar aa Ls Ax, Didlaroaiial onineattty ONL Eta Lan WAR Guin Errar ‘Grae GAG Laichon Loaded with (VL LL L11E ___at La Max ‘Cuipul Leslee hana Pens anaes tn peo eoea eae ‘0 eAMAX Input Reelatanca Ree Pd 19 ib SCR PMAELIAA ree Vows Poe ay PTE ly a vee Spear Input Vina. Tey PME ny “ vMAK wo Vout Yoo = 15¥ P-T88 only mM VIN Bight it Vina. Vg = 18V PRT enity ory MAK faput Currant a Vin 0¥ oF Vow a aA MAK, * my une ta Avg els Yan a osoun pag: Nog 8% eee ue MAK iain egt Ea MOTE Gecineal ‘ets are partormed ai waler probe to the lenis shown. Que bo wirlations In assembly methods and normed yietd lot, ylaks wher Packaging me not Guranteed ioe standerd produat dca. Coasull hashory bo napelinte spacitica lions baked on dite bet qualitication iheough mampia lot aasernily and pevting. 2-678 DIGITAL-TO-ANALOG CONVERTERS REV. C |
ANALOG DEVICES INC 42— D M@® 0816800 0028953 T MANA . T-51-09-12 PM-7545/PM-7645 | TYPICAL ELECTRICAL CHARACTERISTICS at Voo = +5Y oF +18V, AGND « DGND = OV, Vage= + 10V, OUT <OV; Ta 25°C, ‘uniess otherwise noted. (Note 1) urls oherutae noted, No TY PM-7545G/PM-7645G ‘PARAMETER ‘SYMBOL CONDITIONS TYPICAL unTs Digte Input Capacitancs Oy ee oe Cuma Sour DAG Lanes Loaded wath 410 1111 1111 Ww al . Propagation Delay Yoo= 18" hood ms NOTES: 1. These characteristics ae lor design guidance oniy and are no} subject lo test. 2. From dightal input change to 90% of final ansiag culpa 2. OUT toed = 100/, Oger = 180% 4, BE + WR =0, 069 10 DBT =O 10 Vag OF Vig 40 0K TYPICAL PERFORMANCE CHARACTERISTICS FULL-SCALE GAIN ERROR LOGIC THRESHOLD VOLTAGE OUTPUT LEAKAGE CURRENT vs TEMPERATURE ve SUPPLY VOLTAGE vs TEMPERATURE as ” 000 a ee a Pty TT =E5S==== ee ee | a a | georrrrrrry FP PT TT) oe Peete Ee ores SSSSS>S ee ee ee oor pitt tt fooseeaer, aa — Se Se ee pe a so ———— ed COeCeeee —_ SEP rs tA “ATeeeere CLL ERE EEEEEEYF “e020 = © 6 MO oS o . » * a ee ee ae TEMPURA CO ‘Veesurre wouwas NPE SUPPLY CURRENT SUPPLY CURRENT ve TEMPERATURE va TEMPERATURE PM-7545 PM-T645 | So SUSSSS5= SSS ====— =—--—=== = Doe a oe oe EEL SS Boleteley 6 | ERE Gees FLEECE EZ : Het 4 PSS Se pa SEERA wi ttt | | tf on n> i ee ee | see oe we moma Contra REV, Cc DIGITAL-TO-ANALOG CONVERTERS 2-579
ANALOG DEVICES INC 42E D MM O4)b400 o0f8954 i MANA PMM-7545/PM-7645 T-51-09-12 , PARAMETER DEFINITIONS LOGIC INFORMATION RELATIVE ACCURACY WRITE CYCLE TIMING DIAGRAM Sometimes raterrad to as endpoint nontlnearity, and is a measureof the maximum deviation froma stralght ling passing ot through the endpoints of the DAG transfer function. Relative eee Agcuracy ls mansured after the zero and full-soale potnts have eT boon adjusted, and ja normatly axpressed in LSB or as a . are * . DIFFERENTIAL NONLINEARITY . This is the differance between the mosurad change and the ‘on ‘om ideal change between any two adjacent codes. A difteranilal rarest Toot oonvnn You nonlineartly of £1 LSE maximum over the full operating tem= Werner i a feraiure range will anaure that a devtoa fs monctonia (the ‘SuTput will Ineréase for an Increase In digital code apellact), aE DNETON Pinu ios ac enercnen trian En nia, ara ee GAIN ERROR TODATASUGMO-CGTumweTs, — joee-oaTl LOCRED Gat; Gainar full sole error Is the amount of outputetrar bebwoan the fun thauginen nenstene Idea! output and the actual output, The ideal output i Vaee | minus 1 LSB, The galnarror ls adjustable bo cero using external Botnet oy tie regivlance. rn a ARE ASD PALL TIME MAL rants weanrediiar * tan aupensice crt els, OUTPUT CAPACITANCE {THE PN-TERE USGS A IR LGR He Ow 8 CLR. ‘The capacitance from OUT to AGND, PROPAGATION DELAY This Ia meaaured from the digital Input change to the analog © MA CONVERTER SECTION ‘oulput currant reaching GC of Hs final value. FIGURE t: Simplified DNA Caroult of PML7545: DIGITAL CHARGE INJECTION oo. 8 . ‘Tha la.a repasure of the amount of charge injected to-the analog ero ‘Output fram the digital Inputs, when the digital Inputs change ” an states. {kia the area of the glitch and Is specified In nVaoo; It lp ; t” fr Ore moagured with Vage © AGHID, _ ity ? fp ED BL WA J BURNAN CIRCUIT ely om om oly Lada a “0 7 Ved Yoo maaan ai Figure. ahows.a simplified olroultof the O03 Convartersection and Figure? giver anappreximaléaquivalant switeh clreuit. Fis Spree © , typleally 11k0 | ln] #8, Tho binary-weighted currents are switched between OUT oo Mar | J [_ | conse v and AGNO by N-channel stiches, thus maintaining a constant Son] oripven a [2 current In each ladder lag indepandant of tha switch state, IP ea The capacitance atthe OUT terminal, Gqu, lsoode dependant | Ts] mn ¥ and varies from 7OpF (all switches to AGN) to 150pF [all | i ee re switches 10 QUT). Ona of the current switches ia shown in | or es es Figure 2 | [al le | The input resistance at Vier (Figure 1) is always equal to Alor, | ee Me (Rupa Is the R/2R ladder characteristics resistance and is equal ' fe ad to value “R"}, Since the input resistance at Me Vaer pin is ‘constant, the raferance tarminal can be driven by a reference ! ‘walla OF a rederenoe currant, ac or de, of poaitiva or nageative | polartty, (It a current source is used, a iow-temperature- | edefficient extoral Fipg [a recommanded bo define-soale dactor) ! 4-580 OYGITAL-TOANALOG CONVERTERS REV, C
ANALOG DEVICES INC 42E D MM 0816800 0028956 5 mmANA PN-7545/PM-7645 "7261-09-12 Figure § and Table 9 Itluatrate the recommended circult and APPLICATION HINTS: code relationship far bipolar operation. The CMA. function lise! — Quieut OHfsst. CMOS CAA corvertars exhibits cade-depondent uaea offset binary cade. The inverter Uy an the MSS ling, —_gutput realstanoa that cases a code-dependent arroe wattage converts 2¢-complamant inp code to offast binary coda. Tha st tha cutput of the ‘amplifier. The manimuen ampilituda of this inverter Uy may be omitted It the Inversion is done in software. otioal, which adds to the Dv converter naniinearity, is UBT Ving AG, Re. and RG mest match within 0.01% and shoukd be tha same: where Vg fe the amplitier Input-offeat voltage, To maintain type of resistors (preferably wira-wound or srestal foil}, so thet monobanic oparation, [tls recommendad that Vgg bena greater their temperature cosdfickants maton, Mismatch of R3-value ta than W046 of 1 LEB over the temperature range of aparalion. Pd crusesboth offset and iu scateerror Mismatch ofAStoR4 — General Ground Management AC: of transiont voltages be- - and Aa causes full scat arroe, tween AGND and OGND can cause noise injeation into the Tl th TABLE INE 2's Complamard Code Table for CGiroult of Figuira 8 aN Gre DON eeeal to te AOND ang Hono DATA INPUT ANALOG OUTPUT logether at the PM-TE48/PM-78465, |f fs recommended that two 2047 diodes (1N914 of equivalent) be connacted in Invarse parallel Ont wit tn “in. Spa betwaon AGND and OGND ping In complex systams where 7 AGND and OGNO tle on the backplane. S000 000 cont n° fae } Digital Giltchea: When Wand GS are both low, thelstohea are frangparent and tte CA converter inputs fallow the data inputs. S900 o0td = a000 o Volts Some bus systema de not always have data valld for the whola 7 period during which WA Is fow. This will aliow Invalid data to Wi 4 ttt “Vin { =m) beletly appear atthe CAC Inpute during the write cycle. This can causa unwantad glitches atthe OAC output. Rsliming the write 1000 pon» oneO Min { Pare) Bulge WA, sr that tonty occure when data Is valid, will eliminate FIGURE &: Bipolar Operation (22 Complamant Coda) as Sn a oS | : [4 our foun) oou-ne0 a : ~ sauslog uo ZY eoN eae Te 1 sae arate 2-582 DIGITAL-TOANALOG CONVERTERS REV. C ee
ANALOG DEVICES INC 4eE D MM 0416400 oo289s? 7 MANA PM-7545/PM-7645 INTERFACING THE PM-7645/PM-7645 TO 51 -09- MICROPROCESSORS T-51-09-12 ‘Tha PM-7545 can be directly interfaced to eltharan Bor 18-bit Conneotianto an 8-bit processor with a full 1é-bit wide address microprooossor via Its T2-bit wide data laich using the GS and us {Such as tha 680), 8080, 280) ts shown In Figura 7. Tha 12 WA contral signals. lar adtiress linea are fed directly to the PM-7648; this allows the PM-T645 to uso 4k byloa for tts address location, The tunes ean red eeconfauratian jeshawn in Figures. address fleld of the inetructon id organized so that the lower ‘12-bits contain the DAC dats. Osta la written info theOAG using far the uppar 4-bits of data into the DAG ya the latch, a slngta witte Instruction. - FIGURE 6: 6-20 F ta Pha nerfs FIGURE 7: Connecting the PM-T545/7645 ta an &-Bit Micro- processor via tha Address Bus we Ser sanea aie — apn ent va “a ie mia wu “He say 5 " RT - Peete “y= GEC nE MOOG Fo Ga 10) = OCDODED AOR Poe LH REV, C DIGITAL-TO-ANALOG CONVERTERS 2-569