AD230

AD230_15 AD | Alldatasheet

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Technical content

D~ 5C-c::t\\+~VI u ~ - ,.ANALOG W DEVICES +5V Powered CMOS RS-232Drivers/Receivers

FEATURES

Meets AllRS-232-C and V.28 Specifications Multiple Drivers and Receivers On-Board DC-DC Converters :t:9V Output Swing with +5 V Supply low Power CMOS: 5 mA Operation low Power Shutdown $1 p.A 3-State TTl/CMOS Receiver Outputs :t:30V Receiver Input levels Plug-In Replacement for MAX230-241

APPLICATIONS

The AD230 familyof 5 V only,RS-232 linedrivers/receivers providesa varietyof configurationsto fitmost communication needs,especiallyin applicationswhere :t12 V isnot available. The AD230, AD235, AD236 and AD241 featurea low power shutdown mode which reducespower dissipationtolessthan 5 j.LW making them ideallysuitedforbatterypowered equip- ment. The AD233 and AD235 do not requireany externalcom- ponents and areparticularlyusefulin applicationswhere printed circuitboard spaceiscritical. 1\\llmembers ofthe AD230 family,exceptthe AD231 and the AD239, includetWo internalchargepump voltageconverters which allowoperationfrom a single+5 V supply.These con- vertersconvertthe + 5 V inputpower to the :t10 V requiredfor RS-232 output levels.The AD231 and AD239 aredesignedto operatefrom +5 V and + 12 V supplies.An internal+ 12 V to - 12 V chargepump voltageconvertergeneratesthe - 12 V supply. In ordertominimize the package count in allapplications,a wide selectionof driver/receivercombinationsisavailable(see tablebelow). SELECTION TABLE Informationfurnishedby Analog Devicesisbelievedto be accurateand reliable.However, no responsibilityisassumed by Analog Devicesforits use; nor forany infringementsof patentsor otherrightsofthirdparties which may resultfrom itsuse. No licenseisgranted by implicationor otherwise under any patentor patentrightsof Analog Devices. Tel:617/329-4700 Fax: 617/326-8703 Twx: 710/394-6577 Telex: 924491 Cable:ANALOG NORWOODMASS No. of No. of Low Power TTL Part Power RS-232 RS-232 External Shutdown Three-State No. of Number Supply Voltage Drivers Receivers Capacitors (SD) EN Pins AD230 +5 V 5 0 4 Yes No 20 AD231 +5 V & +7.5 V 2 2 2 No No 14 to 13.2V AD232 +5 V 2 2 4 No No 16 AD233 +5 V 2 2 None No No 20 AD234 +5 V 4 0 4 No No 16 AD235 +5 V 5 5 None Yes Yes 24 AD236 +5 V 4 3 4 Yes Yes 24 AD237 +5 V 5 3 4 No No 24 AD238 +5 V 4 4 4 No No 24 AD239 +5 V & +12 V 3 5 2 No Yes 24 AD241 +5 V 4 5 4 Yes Yes 28 OBSOLETE

(Vee = +5 V :t 10% (AD231,AD232,AD234,AD236,AD238,AD239,AD241);Vee = +5 V :t 5% (AD233, AD235);V+ = 7.5V to13.2V (AD231)& V+ = 12 V :t 10% (AD239);AllSpecificationsTminto Tmax unlessotherwisenoted.) NOTE 'Sample testedto ensure compliance. Specificationssubject to change without notice. ABSOLUTE MAXIMUM RATINGS* (T A = 25°C unlessotherwise noted) Vcc 0.3Vto+6V V+ (Vcc-0.3V)to+13V V- +0.3Vto-13V Input Voltages TIN 0.3Vto(Vcc+0.3V) R1N ::I::30V Output Voltages ROUT O.3Vto(Vcc+O.3V) Short Circuit Duration TOUT Continuous Power Dissipation Cerdip (Derate9.5 mW/OC above +70°C) 675 mW PlasticDIP (Derate7 mW/OC above +70°C) 375 mW SOIC (Derate7 mW/oC above +70°C) 375 mW OperatingTemperature Range Commercial (JVersion) 0 to +70°C Extended (S Version) """"""" -55°C to + 125ac *This isa stressratingonlyand functionaloperationof thedevice at theseor any other conditionsabove those indicatedin the operationsectionsof thisspecificationisnot implied.Exposure to absolutemaximum ratingconditionsforextendedperiodsof time may affectreliability. CAUTION ESD (electrostaticdischarge)sensitivedevice.The digitalcontrolinputsare diode protected; however, permanent damage may occur on unconnected devicessubjectto high energy electro- staticfields.Unused devicesmust be storedin conductivefoam or shunts.The protectivefoam shouldbe dischargedto the destinationsocketbeforedevicesareremoved. -2- ~--- - Parameter Min Typ Max Units Test Conditions/Comments Output VoltageSwing ::I::5 ::I::9 Volts AllTransmitterOutputs Loaded with 3 kilto Ground V cc Power Supply Current 4 10 mA No Load, T A = 25°C 0.4 1 mA AD231, AD239 V + Power Supply Current 5 10 mA No Load, V+ = 12 V AD231 & AD239 Only Shutdown Supply Current 1 10 f.LA TA = +25°C Input Logic Threshold Low, VINL 0.8 V TIN' EN, SD Input Logic ThresholdHigh, VINH 2.0 V TIN' EN, SD Logic PullupCurrent 15 200 f.LA TIN = 0 V RS-232 InputVoltageRange -30 +30 V RS-232 Input Threshold Low 0.8 1.2 V Vcc = 5 V, TA = +25°C RS-232 Input ThresholdHigh 1.7 2.4 V Vcc = 5 V, TA = +25°C RS-232 Input Hysteresis 0.2 0.5 1.0 V Vcc=5V RS-232 Input Resistance 3 5 7 kil Vcc = 5V, TA = +25°C TTL/CMOS Output VoltageLow, VOL 0.4 V lOUT = 3.2mA TTL/CMOS Output VoltageHigh, V OH 3.5 V lOUT = -1.0 mA TTL/CMOS Output Leakage Current 0.05 ::1::10f.LA EN = Vceo0 V ::;ROUT::;Vcc Output Enable Time (TEN) 400 ns AD235, AD236, AD239, AD241 (Figure25. RL = 1 kil,CL = 150 pF) Output DisableTime (Tod 250 ns AD235, AD236, AD239, AD241 (Figure25. RL = 1 kil,CL = 150 pF) PropagationDelay 0.5 f.Ls RS-232 toTTL InstantaneousSlew Ratel 30 V/f.LS CL = 10pF, RL = 3-7kil,TA = +25°C TransitionRegion Slew Rate 3 V/f.LS RL = 3 kil,CL = 2500pF Measured from +3 V to -3 V or -3 V to +3 V Output Resistance 300 il Vcc = V+ = V- = 0 V, VOUT = ::1::2V RS-232 Output ShortCircuitCurrent ::1::10 mA OBSOLETE

Figure 7. AD233 DIP Pin Configuration

Figure 10. AD234 Typical Operating Circuit

Figure 14. AD236 Typical Operating Circuit

14 C1- VOLTAGE DOUBLER V+ 17

Figure 22. AD241 Typical Operating Circuit Figure 21. AD241 SOIC Pin Configuration

Vcc Power Supply Input 5 V :!:10% (AD231, AD232, AD234, AD236, AD238, AD239, AD241). Internallygeneratedpositivesupply(+ 10 V nominal)on allpartsexceptAD231 and AD239. GND Internallygeneratednegativesupply (-10 V nominal). Ground pin.Must be connectedto0 V. (AD231 and AD239 only).Externalcapacitor(+ terminal)isconnected tothispin. (AD231 and AD239 only).Externalcapacitor(- terminal)isconnectedtothispin. C1+ (AD230, AD232, AD234, AD236, AD237, AD238, AD241) Externalcapacitor(+ terminal)is connectedtothispin. (AD233) The capacitorisconnectedinternallyand no externalconnectionto thispin isrequired. (AD230, AD232, AD234, AD236, AD237, AD238, AD241) Externalcapacitor(- terminal)is connectedto thispin. (AD233) The capacitorisconnectedinternallyand no externalconnectiontothispin isrequired. Cl- C2+ (AD230, AD232, AD234, AD236, AD237, AD238, AD241) Externalcapacitor(+ terminal)is connectedtothispin. (AD233) The capacitorisconnectedinternallyand no externalconnectionto thispin isrequired. (AD230, AD232, AD234, AD236, AD237, AD238, AD241) Externalcapacitor(- terminal)is connectedto thispin. (AD233) The capacitorisconnectedinternallyand no externalconnectionto thispin isrequired. Transmitter(Driver)Inputs.These inputsacceptTTL/CMOS levels.An internal400 kG pull-up resistorto V cc isconnectedon each input. Transmitter(Driver)Outputs.These areRS-232 levels(typically:!:10 V). ReceiverInputs.These inputsacceptRS-232 signallevels.An internal5 kG pull-downresistorto GND isconnectedon each input. Receiveroutputs.These are TTL/CMOS levels. Enable Input (AD235, AD236, AD239, AD241). This isan activelow inputwhich isused to enablethereceiveroutputs.With EN = 0 V, the receiveroutputsareenabled.With EN = 5 V, the outputsareplacedin a high impedance state.This facilityisusefulforconnectingto microprocessorsystems. NC Shutdown input.(AD230, AD235, AD236, AD241). With SD = 5 V, the chargepump isdisabled, the receiveroutputsareplacedin a high impedance stateand the driveroutputsare turnedoff.The supply currentreducesto <5 f.LAmaking thesepartsideallysuitedforbatteryoperation. No Connect.No connectionsarerequiredtothispin. -9- ~~- ~- C2- TIN TOUT R1N ROUT EN SD OBSOLETE

levelshiftingtransmittersand receiversonto the same chip. down mode which reducespower dissipationto lessthan 5 f.-lW. outputsareplacedin a high impedance state. switchedcapacitortechniqueas illustratedin Figures23 and 24. vertedto generate-10 V usingC2 as the storageelement. Figure 24. Charge-Pump Voltage Inverter CapacitorsC3 and C4 areused to reducethe outputripple. circuitryifthe currentrequirementsaresmall. resistorpullsthem high forcingthe outputsintoa low state. and forinputswith slow transitiontimes. the driveroutputsareturned off.

ORDERING INFORMATION

*= 0.6" DIP package (allother DIP packages = 0.3") -12- ~-- Temperature Temperature Temperature Part Range Package Part Range Package Part Range Package AD230 AD23! AD232 AD230JN 0 to +70'C 20-Lead AD23IJN 0 to + 70'C 14-Lead AD232JN 0 to +70'C 16-Lead PlasticDIP PlasticDIP PlasticDIP AD230JR 0 to + 70'C 20-Lead AD23IJR 0 to +70'C 16-Lead AD232JR 0 to +70'C 16-Lead SOIC SOIC SOIC AD230AN -40'C to +85'C 20-Lead AD23IAN -40'C to +85'C 14-Lead AD232AN -40'C to +85'C 16-Lead PlasticDIP PlasticDIP PlasticDIP AD230AR -40'C to +85'C 20-Lead AD23lAR -40'C to +85'C 16-Lead AD232AR -40'C to +85'C l6-Lead SOIC SOIC SOIC AD230AQ -40'C to +85'C 20-Lead AD23lAQ -40'C to +85'C 14-Lead AD232AQ -40'C to +85'C 16-Lead Cerdip Cerdip Cerdip AD23ISQ -55'C to + l25'C 14-Lead AD232SQ -55'C to + l25'C l6-Lead Cerdip Cerdip AD233 AD234 AD235 AD233JN 0 to + 70'C 20-Lead AD234JN 0 to + 70'C l6-Lead AD235JN 0 to + 70'C 24-Lead PlasticDIP PlasticDIP PlasticDIP* AD233AN -40'C to +85'C 20-Lead AD234JR 0 to + 70'C 16-Lead AD235AN -40°C to +85°C 24-Lead PlasticDIP SOIC PlasticDIP* AD234AN -40°C to +85°C 16-Lead AD235AQ -40°C to +85°C 24-Lead PlasticDIP Ceramic* AD234AR -40'C to +85°C 16-Lead SOIC AD234AQ -40'C to +85°C 16-Lead Cerdip AD234SQ -55°C to + 125°C l6-Lead Cerdip AD236 AD237 AD238 AD236JN 0 to +70°C 24-Lead AD237JN 0 to + 70'C 24-Lead AD238JN 0 to + 70'C 24-Lead PlasticDIP PlasticDIP PlasticDIP AD236JR 0 to + 70°C 24-Lead AD237JR 0 to + 70°C 24-Lead AD238JR 0 to + 70°C 24-Lead SOIC SOIC SOIC AD236AN -40°C to +85°C 24-Lead AD237AN -40°C to +85°C 24-Lead AD238AN -40°C to +85°C 24-Lead PlasticDIP PlasticDIP PlasticDIP AD236AR -40°C to +85'C 24-Lead AD237AR -40°C to +85°C 24-Lead AD238AR -40°C to +85°C 24-Lead SOIC SOIC SOIC AD236AQ -40°C to +85°C 24-Lead AD237 AQ -40'C to +85°C 24-Lead AD238AQ -40°C to +85°C 24-Lead Cerdip Cerdip Cerdip AD236SQ -55°C to + 125°C 24-Lead AD238SQ -55°C to + 125'C 24-Lead Cerdip Cerdip AD239 AD24! AD239JN 0 to +70°C 24-Lead AD24IJR 0 to +70°C 28-Lead PlasticDIP SOIC AD239JR 0 to +70°C 24-Lead AD24lAR -40°C to +85'C 28-Lead SOIC SOIC AD239AN -40'C to +85°C 24-Lead PlasticDIP AD239AR -40°C to +85°C 24-Lead SOIC AD239AQ -40°C to +85°C 24-Lead Cerdip AD239SQ - 55'C to + 125°C 24-Lead Cerdip OBSOLETE

14-Lead PlasticDIP (N-14) 4 8T PIN1 0.28017.111 " 0.240 16.101 1 7 -1.. . IV V 0.795(20.19111 11 I .. ~ ,.,",,~, 0.210 15.33) SEATINGL-- - - - - - - PLANE 0.20015.051 ~ ~ to.150 (3.81) 0.125(3.181 l. 0.014 10.3561 16-Lead Plastic DIP (N-16) r--- 0.745118.931 10.060 11.521 -.-~.."'~' U 0.01410.3561 16-Lead SOIC (R-16) I R R ,0.348(10.10)I R R-I 0.29917.60) 0.291 (7.401 OUTLINE DIMENSIONS 0.325 (8.251 h10.30017.621.--L r \\ 0.19514.951 -~ ,T5 12.931 0.419 (10.65) 0.404 (10.26) O.O50UUUUUUUU L t 0.364 (9.246) j TYP 0.014 (0.361 0.344 18.738) 6t::Jt::Jt::Jt::Jt::Jt::J~.i.~.id(~ ~~====== t t T -+11- 14-Lead Cerdip (Q-14) r- ~ -1 r-REF wmw '.'M"'" a 0.133 (3.378) ~ 0.21+(5.33) 0.12~\\~1711 L ~3.81) 1f~ 16-Lead Cerdip (Q-16) II 0.300(7.62) r-0.780(19.81)~~14.14) ir-REF=iJ --. L ~.81) o~ ~ II I I- 0.01210.3051 lO-Lead Plastic DIP (N-lO) .~ '.m"'" - t r:ilil01 0.125(3.18) i.. ~i- -j I- O~01410.3561 0.045(1.151 -13- OBSOLETE

20-Lead Cerdip (Q-20) 0.20 (5'0 [J~ "kl(,1 0.12513.18) U II ' l O'009(0.23) ,- ~ --H-- -J ~ "I 0.01610.411 0.09 (2.28) 0 0.07 (1.78) 0.05 (1.27) LEAD NO.1 IDENTIFIED BY DOT OR NOTCH LEADS ARE SOLDER OR TIN-PLATED KOVAR OR ALLOY 42 24-Lead Plastic DIP (N-24A) 0.55 (13.911 J3.411 I VVVVVVVVVVVV I u~ ...~,Ir ,I 15.081 ~ MAX =---*- ~ ~ 0115(4451 D.OI2(D.305) J l -01j.- ...jI- --r 24-Lead PlasticDIP (N-24) f 0.260 ...001 16.61 .0.031 ---1. ~.~~ 0.128(3.251 PLA -.jfo- -.j fo- jL --{. 0.01610.41) ii]9jffij 0.0511.271 NOTES ,. lEAD NO.1 IOEN""ED 8V OOT OR NOTCH. 2. PLASTIC LEADS WILL 8E EITHER SOLDER DIPPED OR TIN lEAD PLATED IN ACCORDANCE WITH Mll.M.38510 REOUIREMENTS. 24-Lead Ceramic DIP (0-24) .~--I~~ ~ J L f 13.811 II 0.00810.20' ~ II 0. 0.11012.791 0.090 12.291 24-Lead Cerdip (Q-24) [::~~::::]J I I 0.3208128 ,J;;'~ <- = 15.715) 14.572)MAX ~X PLANE 0.125 T 001210305113.1751 jL ~ II I 0:00810:203, MIN 0.02010.5081 U TV' ~~ -.j fo- --{ ,. lEAD NO. llDENTlAED 8V OOT OR NOTCH.

2 CERDIP lEADS WILL 8E EITHER TIN PLATED OR SOLOER OIPPED

IN ACCORDANCE WITH Mll.M.3"'0 REQUIREMENTS. -14- OBSOLETE

~:: ,:: '.'" I -'u r--, ,..,_. 01910 .491 0.00610151 0. 0421' 0671 -'fT -F-.c j I! 00511271 00141035) 0018104571 I I -II- 0.01 10.2541 -+f t- ~ 000610151 0.04211.0571 28-Lead SOIC (R-28) ,. LEAD NO.1 IDENTIFIED BY A DOT. 2. SOIC LEADS WILL BE EITHER TIN PLATED OR SOLDER DIPPED IN ACCORDANCE WITH MIL.M.'851O REQUIREMENTS. ,. LEAD NO. "DENTIF'ED BY A DOT 2. SOIC LEADS WILL BE EITHER TIN PLATED OR SDLDER DIPPED IN ACCORDANCE WITH MIL.M.'851O REQUIREMENTS -15- -~ - OBSOLETE