TC913A/TC913B Dual Auto-Zeroed Operational Amplifiers Features Package Type • FirstMonolithicDualAuto-Zeroed PDIP OperationalAmplifier TC913ACPA TC913BCPA (cid:127) ChopperAmplifierPerformanceWithoutExternal Capacitors OUT A 1 A B 8 VDD - V :15µVMax -IN A 2 - + 7 OUT B OS - V :Drift;0.15µV/°CMax +IN A 3 + - 6 -IN B OS V 4 5 +IN B - SavesCostofExternalCapacitors SS (cid:127) SOICPackagesAvailable SOIC (cid:127) HighDCGain;120dB TC913ACOA TC913BCOA (cid:127) LowSupplyCurrent;650 µA (cid:127) LowInputVoltageNoise OUT A 1 A 8 VDD B - 0.65µV (0.1Hzto10Hz) -IN A 2 - + 7 OUT B P-P (cid:127) WideCommonModeVoltageRange +IN A 3 + - 6 -IN B - V toV -2V VSS 4 5 +IN B SS DD (cid:127) HighCommonModeRejection;116dB GeneralDescription (cid:127) DualorSingleSupplyOperation: - ±3.3Vto±8.3V TheTC913istheworld'sfirstcompletemonolithic,dual auto-zeroed operational amplifier. The TC913 sets a - +6.5Vto+16V newstandardforlowpower,precisiondual-operational (cid:127) ExcellentACOperatingCharacteristics amplifiers. Chopper-stabilized or auto-zeroed amplifi- - SlewRate;2.5V/µsec ersoffer low offset voltageerrorsbyperiodicallysam- - Unity-GainBandwidth;1.5MHz pling offset error, and storing correction voltages on (cid:127) PinCompatiblewithLM358,OP-14,MC1458, capacitors. Previous single amplifier designs required ICL7621,TL082,TLC322 twouser-supplied,external0.1µFerrorstoragecorrec- tion capacitors — much too large for on-chip integra- Applications tion. The unique TC913 architecture requires smaller capacitors, making on-chip integration possible. (cid:127) Instrumentation Microvolt offset levels are achieved and external (cid:127) MedicalInstrumentation capacitorsarenotrequired. (cid:127) EmbeddedControl The TC913 system benefits are apparent when con- (cid:127) TemperatureSensorAmplifier trastedwitha TC7650 chopper amplifier circuit imple- (cid:127) StrainGageAmplifier mentation.AsingleTC913replacestwoTC7650'sand four capacitors.Fivecomponentsandassemblysteps Device Selection Table areeliminated. TheTC913pinoutmatchesmanypopular dual-opera- Temp. Offset PartNumber Package tionalamplifiers:OP-04,TLC322,LM358,andICL7621 Range Voltage are typical examples. In many applications, operating TC913ACOA 8-PinSOIC 0°Cto 15µV from dual 5V power supplies or single supplies, the +70°C TC913offerssuperiorelectricalperformance,andcan TC913ACPA 8-PinPDIP 0°Cto 15µV be a functional drop-in replacement; printed circuit +70°C boardreworkisnotnecessary.TheTC913'slowoffset voltage error eliminates offset voltage trim TC913BCOA 8-PinSOIC 0°Cto 30µV potentiometers often needed with bipolar and low +70°C accuracyCMOSoperationalamplifiers. TC913BCPA 8-PinPDIP 0°Cto 30µV The TC913 takes full advantage of Microchip's +70°C proprietaryCMOStechnology.Unitygainbandwidthis 1.5MHzandslewrateis2.5V/µsec.  2002MicrochipTechnologyInc. DS21482B-page 1

TC913A/TC913B FunctionalBlock Diagram VSS VDD 4 8 TC913 VOS Correction Amplifier + A A Internal – Oscillator * B B (fOSC 200Hz) * Low Impedance -Input A 2 - Output Buffer -Input B 6 + +Input A 5 + 1 Output A +Input B 3 Main Amplifier - 7 Output B 1 of 2 Amplifier Shown *NOTE: Internal capacitors. No external capacitors required.  DS21482B-page 2 2002MicrochipTechnologyInc.

TC913A/TC913B 1.0 ELECTRICAL *Stresses above those listed under "Absolute Maximum CHARACTERISTICS Ratings"maycausepermanentdamagetothedevice.These arestressratingsonlyandfunctionaloperationofthedevice attheseoranyotherconditionsabovethoseindicatedinthe Absolute Maximum Ratings* operationsectionsofthespecificationsisnotimplied.Expo- TotalSupplyVoltage(V toV ).......................+18V sure to Absolute Maximum Rating conditions for extended DD SS InputVoltage......................(V +0.3V)to(V -0.3V) periodsmayaffectdevicereliability. DD SS CurrentIntoAnyPin............................................10mA WhileOperating..........................................100µA PackagePowerDissipation(T –70°C) A PlasticDIP................................................730mW PlasticSOIC.............................................470mW OperatingTemperatureRange CDevice..........................................0°Cto+70°C StorageTemperatureRange..............-65°Cto+150°C TC913AANDTC913BELECTRICALSPECIFICATIONS ElectricalCharacteristics:V =±5V,T =+25°C,unlessotherwiseindicated. S A TC913A TC913B Symbol Parameter Min Typ Max Min Typ Max Unit TestConditions V InputOffset — 5 15 — 15 30 µV T =+25°C OS A Voltage TCV AverageTemp. — 0.05 0.15 — 0.1 0.25 µV/°C 0°C≤T ≤+70°C OS A Coefficientof — 0.05 0.15 — 0.1 0.25 µV/°C -25°C≤T ≤+85°C A InputOffset (Note1) Voltage I AverageInput — — 90 — — 120 pA T =+25°C B A BiasCurrent — — 3 — — 4 nA 0°C≤T ≤+70°C A — — 4 — — 6 nA -25°C≤T ≤+85° A I AverageInput — 5 20 — 10 40 pA T =+25°C OS A OffsetCurrent — — 1 — — 1 nA T =+85°C A e InputVoltage — 0.6 — — 0.6 — µV 0.1to1Hz,R ≤100Ω N P-P S Noise — 11 — — 11 — µV 0.1to10Hz,R ≤100Ω P-P S CMRR CommonMode 110 116 — 100 110 — dB V ≤V ≤V -2.2 SS CM DD RejectionRatio CMVR CommonMode V V 2 V V 2 V SS — DD- SS — DD- VoltageRange A Open-Loop 115 120 — 110 120 — dB R =10kΩ,V =±4V OL L OUT VoltageGain V OutputVoltage V +0.3 — V -0.9 V +0.3 — V -0.9 V R =10kΩ OUT SS DD SS DD L Swing BW ClosedLoop — 1.5 — — 1.5 — MHz ClosedLoopGain=+1 Bandwidth SR SlewRate — 2.5 — — 2.5 — V/µsec R =10kΩ,C =50pF L L PSRR PowerSupply 110 — — 100 — — dB ±3.3Vto±5.5V RejectionRatio V Operating ±3.3 — ±8.3 ±3.3 — ±8.3 V SplitSupply S SupplyVoltage 6.5 — 16 6.5 — 16 V SingleSupply Range I Quiescent — 0.65 0.85 — — 1.1 mA V =±5V S S SupplyCurrent Note 1: Characterized;not100%tested.  2002MicrochipTechnologyInc. DS21482B-page 3

TC913A/TC913B 2.0 PIN DESCRIPTIONS ThedescriptionsofthepinsarelistedinTable2-1. TABLE 2-1: PINFUNCTIONTABLE PinNo. (8-PinPDIP) Symbol Description (8-PinSOIC) 1 OUTA Output 2 -INA InvertingInput 3 +INA Non-invertingInput 4 V NegativePowerSupply SS 5 +INB Non-invertingInput 6 -INB InvertingInput 7 OUTB Output 8 V PositivePowerSupply DD  DS21482B-page 4 2002MicrochipTechnologyInc.

TC913A/TC913B 3.0 DETAILED DESCRIPTION 3.3 Overload Recovery The TC913 recovers quickly from output saturation. 3.1 Theory of Operation Typicalrecoverytimefrompositiveoutputsaturationis EachoftheTC913'stwoOpAmpsactuallyconsistsof 20msec. Negative output saturation recovery time is two amplifiers. A main amplifier is always connected typically5msec. fromtheinputtotheoutput.Aseparatenullingamplifier alternatelynullsitsownoffsetandthentheoffsetofthe 3.4 Avoiding Latchup amplifier. Since each amplifier is continuously being Junction-isolated CMOS circuits inherently contain a nulled, offset voltage drift with time, temperature and parasitic p-n-p-n transistor circuit. Voltages exceeding powersupplyvariationsisgreatlyreduced. the supplies by 0.3V should not be applied to the Allnullingcircuitry isinternalandthenullingoperation device pins. Larger voltages can turn the p-n-p-n is transparent to the user. Offset nulling voltages are device on, causing excessive device power supply storedontwointernalcapacitors.Aninternaloscillator current and power dissipation. The TC913's power andcontrollogic,sharedbytheTC913'stwoamplifiers, supplies should be established at the same time or controlthenullingprocess. beforeinputsignalsareapplied.Ifthisisnot possible, input current should be limited to 0.1mA to avoid 3.2 Pin Compatibility triggeringthep-n-p-nstructure. The TC913 pinout is compatible with OP-14, LM358, MC1458,LT1013,TLC322,andsimilardualOpAmps. Inmanycircuitsoperatingfromsingleor±5Vsupplies, the TC913 is a drop-in replacement offering DC performancerivalingthatofthebestsingleOpAmps. TheTC913'samplifiersincludealow-impedanceclass AB output buffer. Some previous CMOS chopper amplifiers used a high impedance output stage which made open-loop gain dependent on load resistance. TheTC913'sopen-loopgainisnotdependentonload resistance.  2002MicrochipTechnologyInc. DS21482B-page 5

TC913A/TC913B 4.0 TYPICAL CHARACTERISTICS Note: Thegraphsandtablesprovidedfollowingthisnoteareastatisticalsummarybasedonalimitednumberof samplesandareprovidedforinformationalpurposesonly.Theperformancecharacteristicslistedhereinare nottestedorguaranteed.Insomegraphsortables,thedatapresentedmaybeoutsidethespecified operatingrange(e.g.,outsidespecifiedpowersupplyrange)andthereforeoutsidethewarrantedrange. Input Offset Voltage vs. Supply Current vs. ± Supply Voltage Common Mode Voltage Gain and Phase vs. Frequency 1200 35 50 225 UPPLY CURRENT (µA)1086400000000 TA = +25˚C OFFSET VOLTAGE (µV)32210505 VTAA == +±255V˚C SED-LOOP GAIN (dB) -43211000000 GAIN PHASE VTRASL === +±1025 5VkΩ˚C 11940-48305505 PHASE (deg) S T 10 O 200 NPU CL -20 -90 I 5 -30 -135 0 0 -40 -180 2 3 4 5 6 7 8 -6 -5 -4 -3 -2 -1 0 1 2 3 4 10k 100k 1M 10M ± SUPPLY VOLTAGE (V) INPUT COMMON MODE VOLTAGE (V) FREQUENCY (Hz) Output Voltage Swing vs. Load Resistance Negative Overload Recovery Time Positive Overload Recovery Time 5.0 TVAS == +±255V˚C -SWING RTLA == 1+02 5kΩ˚C OUTPUT = V) 2 V/DIV E ( G 4.2 TA +SWING INPUT 0V L VO 3.4 0V T U P UT 2.6 O ± OUTPUT 1.8 = 2 V/DIV INPUT INPUT Gain = –20 GAIN = –20 1.0 100 1k 10k 100k 1M HORIZONTAL SCALE = 20 msec/DIV HORIZONTAL SCALE = 20 msec/DIV LOAD RESISTANCE (Ω)  DS21482B-page 6 2002MicrochipTechnologyInc.

TC913A/TC913B 5.0 PACKAGING INFORMATION 5.1 Package Marking Information Packagemarkingdatanotavailableatthistime. 5.2 Taping Form Component Taping Orientation for 8-Pin SOIC (Narrow) Devices User Direction of Feed PIN 1 W P Standard Reel Component Orientation for TR Suffix Device Carrier Tape, Number of Components Per Reel and Reel Size Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size 8-Pin SOIC (N) 12 mm 8 mm 2500 13 in  2002MicrochipTechnologyInc. DS21482B-page 7

TC913A/TC913B 5.3 Package Dimensions 8-Pin SOIC PIN1 .157 (3.99) .244 (6.20) .150 (3.81) .228 (5.79) .050 (1.27) TYP. .197 (5.00) .189 (4.80) .069 (1.75) .053 (1.35) 8°MAX.. .010 (0.25) .007 (0.18) .020 (0.51) .010 (0.25) .013 (0.33) .004 (0.10) .050 (1.27) .016 (0.40) Dimensions: inches (mm) 8-Pin Plastic DIP PIN1 .260 (6.60) .240 (6.10) .045 (1.14) .070 (1.78) .030 (0.76) .040 (1.02) .310 (7.87) .400 (10.16) .290 (7.37) .348 (8.84) .200 (5.08) .140 (3.56) .040 (1.02) .020 (0.51) .015 (0.38) 3°MIN. .150 (3.81) .008 (0.20) .115 (2.92) .400 (10.16) .310 (7.87) .110 (2.79) .022 (0.56) .090 (2.29) .015 (0.38) Dimensions: inches (mm)  DS21482B-page 8 2002MicrochipTechnologyInc.

TC913A/TC913B SALES AND SUPPORT DataSheets ProductssupportedbyapreliminaryDataSheetmayhaveanerratasheetdescribingminoroperationaldifferencesandrecom- mendedworkarounds.Todetermineifanerratasheetexistsforaparticulardevice,pleasecontactoneofthefollowing: 1. YourlocalMicrochipsalesoffice 2. TheMicrochipCorporateLiteratureCenterU.S.FAX:(480)792-7277 3. TheMicrochipWorldwideSite(www.microchip.com) Pleasespecifywhichdevice,revisionofsiliconandDataSheet(includeLiterature#)youareusing. NewCustomerNotificationSystem Registeronourwebsite(www.microchip.com/cn)toreceivethemostcurrentinformationonourproducts.  2002MicrochipTechnologyInc. DS21482B-page 9

TC913A/TC913B NOTES:  DS21482B-page 10 2002MicrochipTechnologyInc.

TC913A/TC913B Information contained in this publication regarding device Trademarks applicationsandthelikeisintendedthroughsuggestiononly andmaybesupersededbyupdates.Itisyourresponsibilityto The Microchip name and logo, the Microchip logo, FilterLab, ensure that your application meets with your specifications. KEELOQ, microID, MPLAB, PIC, PICmicro, PICMASTER, No representation or warranty is given and no liability is PICSTART,PROMATE, SEEVAL and TheEmbedded Control assumedbyMicrochipTechnologyIncorporatedwithrespect SolutionsCompanyareregisteredtrademarksofMicrochipTech- totheaccuracyoruseofsuchinformation,orinfringementof nologyIncorporatedintheU.S.A.andothercountries. patentsorotherintellectualpropertyrightsarisingfromsuch dsPIC,ECONOMONITOR,FanSense,FlexROM,fuzzyLAB, useorotherwise.UseofMicrochip’sproductsascriticalcom- In-Circuit Serial Programming, ICSP, ICEPIC, microPort, ponentsinlifesupportsystemsisnotauthorizedexceptwith Migratable Memory, MPASM, MPLIB, MPLINK, MPSIM, expresswritten approvalbyMicrochip.Nolicensesarecon- MXDEV, PICC, PICDEM, PICDEM.net, rfPIC, Select Mode veyed,implicitlyorotherwise,underanyintellectualproperty andTotalEndurancearetrademarksofMicrochipTechnology rights. IncorporatedintheU.S.A. SerializedQuickTurnProgramming(SQTP)isaservicemark ofMicrochipTechnologyIncorporatedintheU.S.A. All other trademarks mentioned herein are property of their respectivecompanies. © 2002, Microchip Technology Incorporated, Printed in the U.S.A.,AllRightsReserved. Printedonrecycledpaper. MicrochipreceivedQS-9000qualitysystem certificationforitsworldwideheadquarters, designandwaferfabricationfacilitiesin ChandlerandTempe,ArizonainJuly1999 andMountainView,CaliforniainMarch2002. TheCompany’squalitysystemprocessesand proceduresareQS-9000compliantforits PICmicro®8-bitMCUs,KEELOQ®codehopping devices,SerialEEPROMs,microperipherals, non-volatilememoryandanalogproducts.In addition,Microchip’squalitysystemforthe designandmanufactureofdevelopment systemsisISO9001certified.  2002MicrochipTechnologyInc. DS21482B-page11

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Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: M icrochip: TC913ACOA713 TC913BCOA713 TC913BCOA TC913BCPA TC913ACOA TC913ACPA