CAT Tap Digitally Programmable Potentiometer (DPP ) with Buffered Wiper

Transcription

1 CT 00-Tap igitally Programmal Potntiomtr (PP ) with Buffrd Wipr sription Th CT is a singl digitally programmal potntiomtr (PP ) dsignd as an ltroni rplamnt for mhanial potntiomtrs. Idal for automatd adjustmnts on high volum prodution lins, thy ar also wll suitd for appliations whr quipmnt rquiring priodi adjustmnt is ithr diffiult to ass or loatd in a hazardous or rmot nvironmnt. Th CT ontains a 00 tap sris rsistor array onntd twn two trminals R H and R L. n up/down ountr and dodr that ar ontrolld y thr input pins, dtrmins whih tap is onntd to th wipr,. Th CT wipr is uffrd y an op amp that oprats rail to rail. Th wipr stting, stord in non volatil mmory, is not lost whn th dvi is powrd down and is automatially ralld whn powr is rturnd. Th wipr an adjustd to tst nw systm valus without ffting th stord stting. Wipr ontrol of th CT is aomplishd with thr input ontrol pins, CS, U/, and INC. Th INC input inrmnts th wipr in th dirtion whih is dtrmind y th logi stat of th U/ input. Th CS input is usd to slt th dvi and also stor th wipr position prior to powr down. Th digitally programmal potntiomtr an usd as a uffrd voltag dividr. For appliations whr th potntiomtr is usd as a trminal varial rsistor, plas rfr to th CT. Th uffrd wipr of th CT is not ompatil with that appliation. Faturs 00 position Linar Tapr Potntiomtr Non volatil PROM Wipr Storag; Buffrd Wipr Low Powr CMOS Thnology Singl Supply Opration:. V.0 V Inrmnt Up/own Srial Intrfa Rsistan Valus: 0 k, 0 k and 00 k vailal in PIP, SOIC, TSSOP and MSOP Pakags Ths vis ar P Fr, Halogn Fr/BFR Fr and ar RoHS Compliant ppliations utomatd Produt Caliration Rmot Control djustmnts Offst, Gain and Zro Control Tampr proof Calirations Contrast, Brightnss and Volum Controls Motor Controls and Fdak Systms Programmal nalog Funtions CS V CC INC U/ SOIC V SUFFIX CS B PIP L SUFFIX CS Pin Nam INC U/ R H GN R L CS V CC PIP (L), SOIC (V), MSOP (Z) MSOP Z SUFFIX CS TSSOP Y SUFFIX CS 9L PIN CONFIGURTIONS INC V CC U/ CS R H R L GN TSSOP (Y) (Top Viws) PIN FUNCTION Inrmnt Control Up/own Control R L GN R H Potntiomtr High Trminal Ground Funtion Buffrd Wipr Trminal Potntiomtr Low Trminal Chip Slt Supply Voltag ORRING INFORMTION S dtaild ordring and shipping information in th pakag dimnsions stion on pag of this data sht. Smiondutor Componnts Industris, LLC, 00 ugust, 00 Rv. Puliation Ordr Numr: CT/

2 CT VIC MRKING INFORMTION PIP SOIC MSOP TSSOP RL CTLT YMXXXX RL CTVT YMXXXX RL YMP RL YMXXX R = Rsistan: RL = CTZI 0 T = 0 k PT = CTZI 0 T = 0 k PX = CTZI 00 T = 00 k Y = Prodution Yar (Last igit) L = ssmly Loation M = Prodution Month ( 9,, B, C) = Lad Finish NiPdu P = Produt Rvision = Produt Rvision (Fixd as ) CTL = vi Cod (PIP) CTV = vi Cod (SOIC) T = Tmpratur Rang (Industrial) Y = Prodution Yar (Last igit) M = Prodution Month ( 9,, B, C) XXXX = Last Four igits of ssmly Lot Numr = vi Cod R = Rsistan: = 0 k = 0 k = 00 k L = ssmly Loation = Lad Finish NiPdu Y = Prodution Yar (Last igit) M = Prodution Month ( 9,, B, C) XXX = Last Thr igits of XXX = ssmly Lot Numr R H V CC R H U/ INC CS Control and Mmory Powr On Rall R L GN R L Figur. Funtional iagram Figur. ltroni Potntiomtr Implmntation

3 CT Pin sription INC: Inrmnt Control Input Th INC input (on th falling dg) movs th wipr in th up or down dirtion dtrmind y th ondition of th U/ input. U/: Up/own Control Input Th U/ input ontrols th dirtion of th wipr movmnt. Whn in a high stat and CS is low, any high to low transition on INC will aus th wipr to mov on inrmnt toward th R H trminal. Whn in a low stat and CS is low, any high to low transition on INC will aus th wipr to mov on inrmnt towards th R L trminal. R H : High nd Potntiomtr Trminal R H is th high nd trminal of th potntiomtr. It is not rquird that this trminal onntd to a potntial gratr than th R L trminal. Voltag applid to th R H trminal annot xd th supply voltag, V CC or go low ground, GN. : Wipr Potntiomtr Trminal (Buffrd) is th uffrd wipr trminal of th potntiomtr. Its position on th rsistor array is ontrolld y th ontrol inputs, INC, U/ and CS. R L : Low nd Potntiomtr Trminal R L is th low nd trminal of th potntiomtr. It is not rquird that this trminal onntd to a potntial lss than th R H trminal. Voltag applid to th R L trminal annot xd th supply voltag, V CC or go low ground, GN. R L and R H ar ltrially intrhangal. CS: Chip Slt Th hip slt input is usd to ativat th ontrol input of th CT and is ativ low. Whn in a high stat, ativity on th INC and U/ inputs will not afft or hang th position of th wipr. vi Opration Th CT oprats lik a digitally ontrolld potntiomtr with R H and R L quivalnt to th high and low trminals and quivalnt to th mhanial potntiomtr s wipr. Thr ar 00 availal tap positions inluding th rsistor nd points, R H and R L. Thr ar 99 rsistor lmnts onntd in sris twn th R H and R L trminals. Th wipr trminal is onntd to on of th 00 taps and ontrolld y thr inputs, INC, U/ and CS. Ths inputs ontrol a svn it up/down ountr whos output is dodd to slt th wipr position. Th sltd wipr position an stord in nonvolatil mmory using th INC and CS inputs. With CS st LOW th CT is sltd and will rspond to th U/ and INC inputs. HIGH to LOW transitions on INC will inrmnt or drmnt th wipr (dpnding on th stat of th U/ input and svn it ountr). Th wipr, whn at ithr fixd trminal, ats lik its mhanial quivalnt and dos not mov yond th last position. Th valu of th ountr is stord in nonvolatil mmory whnvr CS transitions HIGH whil th INC input is also HIGH. Whn th CT is powrd down, th last stord wipr ountr position is maintaind in th nonvolatil mmory. Whn powr is rstord, th ontnts of th mmory ar ralld and th ountr is st to th valu stord. With INC st low, th CT may d sltd and powrd down without storing th urrnt wipr position in nonvolatil mmory. This allows th systm to always powr up to a prst valu stord in nonvolatil mmory.

4 CT Tal. OPRTION MOS INC CS U/ Opration High to Low Low High Wipr toward R H High to Low Low Low Wipr toward R L High Low to High X Stor Wipr Position Low Low to High X No Stor, Rturn to Standy X High X Standy R H C H R WI C W C L R L Figur. Potntiomtr quivalnt Ciruit Tal. BSOLUT MXIMUM RTINGS Paramtrs Ratings Units Supply Voltag V CC to GN 0. to V Inputs CS to GN 0. to V CC 0. V INC to GN 0. to V CC 0. V U/ to GN 0. to V CC 0. V R H to GN 0. to V CC 0. V R L to GN 0. to V CC 0. V to GN 0. to V CC 0. V Oprating mint Tmpratur Commrial ( C or Blank suffix) 0 to 0 C Industrial ( I suffix) 0 to C Juntion Tmpratur 0 C Storag Tmpratur to 0 C Lad Soldring (0 s max) 00 C Strsss xding Maximum Ratings may damag th dvi. Maximum Ratings ar strss ratings only. Funtional opration aov th Rommndd Oprating Conditions is not implid. xtndd xposur to strsss aov th Rommndd Oprating Conditions may afft dvi rliaility. Tal. RLIBILITY CHRCTRISTICS Symol Paramtr Tst Mthod Min Typ Max Units V ZP (Not ) S Susptiility MIL ST, Tst Mthod V I LTH (Nots, ) Lath Up JC Standard 00 m T R ata Rtntion MIL ST, Tst Mthod Yars N N nduran MIL ST, Tst Mthod 00,000,000 Stors. This paramtr is tstd initially and aftr a dsign or pross hang that affts th paramtr.. Lath up prottion is providd for strsss up to 00 m on addrss and data pins from V to V CC V

5 CT Tal. C LCTRICL CHRCTRISTICS (V CC =. V to V unlss othrwis spifid) Symol Paramtr Conditions Min Typ Max Units POWR SUPPLY V CC Oprating Voltag Rang. V I CC Supply Currnt (Inrmnt) V CC = V, f = MHz, I W = 0 00 V CC = V, f = 0 khz, I W = 0 00 I CC Supply Currnt (Writ) Programming, V CC = V 000 I SB (Not ) Supply Currnt (Standy) CS = V CC 0. V U/, INC = V CC 0. V or GN V CC = V 00 0 LOGIC INPUTS I IH Input Lakag Currnt V IN = V CC 0 I IL Input Lakag Currnt V IN = 0 V 0 V IH TTL High Lvl Input Voltag. V V CC. V V CC V V IL TTL Low Lvl Input Voltag 0 0. V V IH CMOS High Lvl Input Voltag. V V CC V V CC x 0. V CC 0. V V IL CMOS Low Lvl Input Voltag 0. V CC x 0. V POTNTIOMTR CHRCTRISTICS R POT Potntiomtr Rsistan 0 vi 0 k 0 vi 0 00 vi 00 Pot. Rsistan Tolran ±0 % V RH Voltag on R H pin 0 V CC V V RL Voltag on R L pin 0 V CC V Rsolution % INL Intgral Linarity rror I W 0. LSB NL iffrntial Linarity rror I W LSB R OUT Buffr Output Rsistan 0.0 V CC V WB 0.9 V CC, V CC = V I OUT Buffr Output Currnt 0.0 V CC V WB 0.9 V CC, V CC = V m TC RPOT TC of Pot Rsistan 00 ppm/ C TC RTIO Ratiomtri TC 0 ppm/ C C RH /C RL /C RW Potntiomtr Capaitans // pf f Frquny Rspons Passiv ttnuator, 0 k. MHz V WB(SWING) Output Voltag Rang I OUT 00, V CC = V 0.0 V CC 0.99 V CC. This paramtr is tstd initially and aftr a dsign or pross hang that affts th paramtr.. Lath up prottion is providd for strsss up to 00 m on addrss and data pins from V to V CC V. I W = sour or sink. Ths paramtrs ar priodially sampld and ar not 00% tstd.

6 CT Tal. C TST CONITIONS V CC Rang Input Puls Lvls Input Ris and Fall Tims Input Rfrn Lvls. V V CC V 0. V CC to 0. V CC 0 ns 0. V CC Tal. C OPRTING CHRCTRISTICS (V CC =. V to.0 V, V H = V CC, V L = 0 V, unlss othrwis spifid) Symol Paramtr Min Typ (Not ) Max Units t CI CS to INC Stup 00 ns t I U/ to INC Stup 0 ns t I U/ to INC Hold 00 ns t IL INC LOW Priod 0 ns t IH INC HIGH Priod 0 ns t IC INC Inativ to CS Inativ s t CPH CS slt Tim (NO STOR) 00 ns t CPH CS slt Tim (STOR) 0 ms t IW INC to V OUT Chang s t CYC INC Cyl Tim s t R, t F (Not ) INC Input Ris and Fall Tim 00 s t PU (Not ) Powr up to Wipr Stal ms t WR Stor Cyl 0 ms. Typial valus ar for T = C and nominal supply voltag.. This paramtr is priodially sampld and not 00% tstd. 9. MI in th.c. Timing diagram rfrs to th minimum inrmntal hang in th W output du to a hang in th wipr position. CS INC t CI t IL t CYC t IH t IC (stor) t CPH 90% 90% 0% U/ t I t I t F t R t IW MI () Figur..C. Timing

7 CT ppliations Information (a) rsistiv dividr () varial rsistan () two port Figur. Potntiomtr Configuration ppliations V ( ) V PP CT/ V () R R R R R R V 9 0 R = = = / LM0 R = R = R = k R POT = 0 k V O. V V PP R R pr POT R B C R ( p)r POT 0.0 F 0.00 F V 0.0 F Figur. Programmal Instrumntation mplifir Figur. Programmal Sq. Wav Osillator () OSC CS IC / HC 0 k 0.0 F V 00 mv PP CT/ IC 0 k V CORR 99 k ICB 99 k V IC V RF = V V OUT = V ± mv V Snsor 99 k 99 k V SNSOR = V ± 0 mv Figur. Snsor uto Rfrning Ciruit

8 CT V IN (UNRG) SHUTOWN V PP F 00 k 9 S FB GN CT/ V OUT. V R k R 0 R 0 k 0. F Figur 9. Programmal Voltag Rgulator. F V O (RG) I S V PP CT/ pr ( p)r 0 0 M V V 0 k V O LT09 Figur 0. Programmal I to V Convrtr. V OSC 0 k IC HC 0. F V CLO CHI IC 9 V LL R V UL V IC V CT/ V 0 k PP V O 0 V I O. V IC V S. V 0 V S. V Figur. utomati Gain Control R R V S F C 0.00 F R C 0 k 0.00 F V R 0 k PP CT/ R 00 k V. V Figur. Programmal Bandpass Filtr V O V V R 00 k Srial Bus CT/ V S. V R 00 k R 00 k V R. k I S R 00 k. V = = LMC0 Figur. Programmal Currnt Sour/Sink

9 CT PCKG IMNSIONS PIP, 00 mils CS 0 ISSU SYMBOL MIN NOM MX PIN # INTIFICTION B.0... BSC. 0.9 L TOP VIW L B SI VIW N VIW Nots: () ll dimnsions ar in millimtrs. () Complis with JC MS-00. 9

10 CT PCKG IMNSIONS SOIC, 0 mils CS B 0 ISSU O SYMBOL MIN NOM MX BSC h PIN # INTIFICTION L 0.0. θ 0º º TOP VIW h θ L SI VIW N VIW Nots: () ll dimnsions ar in millimtrs. ngls in dgrs. () Complis with JC MS-0. 0

11 CT PCKG IMNSIONS TSSOP,.x CS 9L 0 ISSU O SYMBOL MIN NOM MX BSC L.00 RF L θ º º TOP VIW SI VIW L N VIW L Nots: () ll dimnsions ar in millimtrs. ngls in dgrs. () Complis with JC MO-.

12 CT PCKG IMNSIONS MSOP, x CS 0 ISSU O SYMBOL MIN NOM MX BSC L L 0.9 RF L θ 0. BSC 0º º TOP VIW TIL SI VIW N VIW L Nots: () ll dimnsions ar in millimtrs. ngls in dgrs. () Complis with JC MO-. TIL L L

13 CT xampl of Ordring Information (Not ) Prfix vi # Suffix CT V I 0 G T Company I (Optional) Produt Numr Pakag L: PIP V: SOIC Y: TSSOP Z: MSOP Tmpratur Rang I = Industrial ( 0 C to C) Rsistan 0: 0 k 0: 0 k 00: 00 k Lad Finish (Nots, ) G: NiPdu Blank: Matt Tin Tap & Rl (Not ) T: Tap & Rl :,000 Units / Rl Tal. ORRING INFORMTION Ordral Part Numr Rsistan (k ) Pakag Pins Lad Finish CTLI 0 G 0 PIP NiPdu CTLI 0 G 0 CTLI 00 G 00 CTVI 0 GT 0 SOIC NiPdu CTVI 0 GT 0 CTVI 00 GT 00 CTYI 0 GT 0 TSSOP NiPdu CTYI 0 GT 0 CTYI 00 GT 00 CTZI 0 T 0 MSOP Matt Tin CTZI 0 T 0 CTZI 00 T ll pakags ar RoHS ompliant.. Standard lad finish is NiPdu, xpt MSOP pakag is Matt Tin.. Contat fatory for Matt Tin finish availaility for PIP, SOIC and TSSOP pakags..th dvi usd in th aov xampl is a CTVI 0 GT (SOIC, Industrial Tmpratur, 0 k, NiPdu, Tap & Rl,,000/Rl).. For information on tap and rl spifiations, inluding part orintation and tap sizs, plas rfr to our Tap and Rl Pakaging Spifiations Brohur, BR0/. PP is a tradmark of Smiondutor Componnts Industris, LLC. ON Smiondutor and ar rgistrd tradmarks of Smiondutor Componnts Industris, LLC (SCILLC). SCILLC rsrvs th right to mak hangs without furthr noti to any produts hrin. SCILLC maks no warranty, rprsntation or guarant rgarding th suitaility of its produts for any partiular purpos, nor dos SCILLC assum any liaility arising out of th appliation or us of any produt or iruit, and spifially dislaims any and all liaility, inluding without limitation spial, onsquntial or inidntal damags. Typial paramtrs whih may providd in SCILLC data shts and/or spifiations an and do vary in diffrnt appliations and atual prforman may vary ovr tim. ll oprating paramtrs, inluding Typials must validatd for ah ustomr appliation y ustomr s thnial xprts. SCILLC dos not onvy any lins undr its patnt rights nor th rights of othrs. SCILLC produts ar not dsignd, intndd, or authorizd for us as omponnts in systms intndd for surgial implant into th ody, or othr appliations intndd to support or sustain lif, or for any othr appliation in whih th failur of th SCILLC produt ould rat a situation whr prsonal injury or dath may our. Should Buyr purhas or us SCILLC produts for any suh unintndd or unauthorizd appliation, Buyr shall indmnify and hold SCILLC and its offirs, mploys, susidiaris, affiliats, and distriutors harmlss against all laims, osts, damags, and xpnss, and rasonal attorny fs arising out of, dirtly or indirtly, any laim of prsonal injury or dath assoiatd with suh unintndd or unauthorizd us, vn if suh laim allgs that SCILLC was nglignt rgarding th dsign or manufatur of th part. SCILLC is an qual Opportunity/ffirmativ tion mployr. This litratur is sujt to all applial opyright laws and is not for rsal in any mannr. PUBLICTION ORRING INFORMTION LITRTUR FULFILLMNT: Litratur istriution Cntr for ON Smiondutor P.O. Box, nvr, Colorado 0 US Phon: 0 or 00 0 Toll Fr US/Canada Fax: 0 or 00 Toll Fr US/Canada mail: ordrlit@onsmi.om N. mrian Thnial Support: 00 9 Toll Fr US/Canada urop, Middl ast and fria Thnial Support: Phon: Japan Customr Fous Cntr Phon: 0 ON Smiondutor Wsit: Ordr Litratur: For additional information, plas ontat your loal Sals Rprsntativ CT/