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clear gifOPA121, Status:ACTIVE
Low Cost Precision Difet Operational Amplifier
 
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See Also:
OPA124Similar to OPA121 with 0.25VIO, 4.5mA Iq and 2MHz GBW
OPA129Similar to OPA121 but with 1.8mA Iq and 1MHz GBW
Product Features and DescriptionFeaturesRequest Free SamplesSamplesTechnical Documents: app notes, user guides, models, and product bulletinsTechnical Documents
Quality: Product Contents, MTBF/FIT Rate and Moisture SensitivityQuality & Pb-Free DataPrice and Packaging InformationPricing/PackagingDownload Application NotesApplication Notes
related productsRelated ProductsInventory, Leadtime, and AvailabilityInventoryModels: BSDL, IBIS, or SPICESimulation Models
Tools & Software: EVMs, CCStudio, and developerTools & Software Download CAD Design ToolsSymbols/FootprintsAccess Reference DesignsReference Designs

 Datasheet
Download Datasheet
Low Cost Precision Difet® Operational Amplifier (opa121.pdf, 94 KB)
27 Sep 2000 Download

OPA121
Number of Channels1  
Total Supply Voltage (V)(Min)(+5V=5, +/-5V=10)10  
Total Supply Voltage (V)(Max)(+5V=5, +/-5V=10)36  
Iq per channel(Max)(mA)4.5  
GBW(Typ)(MHz)2  
Slew Rate(Typ)(V/us)2  
VIO (25 deg C)(Max)(mV)3  
Offset Drift(Typ)(uV/C)3  
IIB(Max)(pA)10  
CMRR(Min)(dB)82  
Vn at 1kHz(Typ)(nV/rtHz)10  
RatingCatalog  
Pin/Package8SOIC  
Approx. Price (US$) 5.10 | 1ku  
Operating Temp Range(Celsius)0 to 70  
 Samples
 Inventory
Analog eLab(TM) Design Center

Customers Who Evaluated This Product Also Evaluated...

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Pricing/Packaging/CAD Design Tools/Samples
Back to TopPricePackagingCAD Design ToolsSamples
DeviceStatusReplaced ByTemp (oC)Budget Price
($US) | QTY		Industry Standard
(TI Pkg) | Pins		Top Side MarkingStandard Pack Quantity | Package CarrierSymbolsFootprintsSamples
OPA121KMOBSOLETEOPA121KU  TO-99 (LMC) | 8     Replaced by OPA121KU
OPA121KM3OBSOLETE   TO-99 (LMC) | 8     Not Available
OPA121KPOBSOLETEOPA121KU  PDIP (P) | 8 View    Download CAD Format for this FootprintReplaced by OPA121KU
OPA121KP4OBSOLETE   PDIP (P) | 8 View    Download CAD Format for this FootprintNot Available
OPA121KUACTIVE 0 to 705.10 | 1kuSOIC (D) | 8 View 100 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintRequest Free Samples
OPA121KU/2K5ACTIVE 0 to 705.10 | 1kuSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
OPA121KU/2K5G4ACTIVE 0 to 705.10 | 1kuSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
OPA121KUE4ACTIVE 0 to 705.10 | 1kuSOIC (D) | 8 View 100 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory
Back to TopTI Inventory StatusReported Distributor Inventory
OPA121KMAs of 8:48 AM GMT, 24 Jul 2008As of 8:48 AM GMT, 24 Jul 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0*  Call**AmericasRochester Electronics >1k Buy Now
OPA121KUAs of 8:48 AM GMT, 24 Jul 2008As of 8:48 AM GMT, 24 Jul 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0*  Call**AmericasRochester Electronics 2 Buy Now
  AsiaWPI 51 Buy Now
View all Distributors
 
* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information. 

Quality & Lead (Pb)-Free Data
Back to TopProduct ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
OPA121KU RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
OPA121KU/2K5 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
OPA121KU/2K5G4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
OPA121KUE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details. If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.


Technical Documents
Back to TopDatasheets
Low Cost Precision Difet® Operational Amplifier (opa121.pdf, 94 KB)
27 Sep 2000 Download
Back to TopApplication Notes
Compensate Transimpedance Amplifiers Intuitively (Rev. A) (sboa055a.htm, 8 KB)
30 Mar 2005 Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (szza046.htm, 8 KB)
24 May 2004 Abstract
Thermal and Electrical Properties of Selected Packaging Materials (sbfa010.htm, 8 KB)
04 Oct 2000 Abstract
Tuning in Amplifiers (sboa067.htm, 8 KB)
02 Oct 2000 Abstract
Single-Supply Operation of Operational Amplifiers (sboa059.htm, 8 KB)
02 Oct 2000 Abstract
Diode-Connected FET Protects Op Amps (sboa058.htm, 8 KB)
02 Oct 2000 Abstract
Op Amp Performance Analysis (sboa054.htm, 8 KB)
02 Oct 2000 Abstract
High Speed Data Conversion (sbaa045.htm, 8 KB)
02 Oct 2000 Abstract
Back to TopSimulation Models
Spice Model
OPA121 PSpice Macromodel (sbom035.zip, 2 KB)
25 Oct 2000 zip
OPA121 TINA Macro Model and Test Circuit (sboc178.zip, 24 KB)
29 Aug 2006 zip

Tools & Software
Back to Top Name Part # Company Tool / Software Type
Analog Filter DesignFILTER-DESIGNERTexas InstrumentsAnalysis Software
Automatic Resistor/Capacitor Calculator for Passive FiltersRC-FILTER-CALCTexas InstrumentsCalculation Utilities
Decibel CalculatorDECIBEL-CALCTexas InstrumentsCalculation Utilities
Frequency/Wavelength CalculatorFREQ-WAVE-CALCTexas InstrumentsCalculation Utilities
Noise Calculator, Generator and ExamplesOPAMP-NOISECALCTexas InstrumentsCalculation Utilities
Op Amp Gain Stage CalculatorGAIN-STAGE-CALCTexas InstrumentsCalculation Utilities
Resistor Calculator for Op Amp Gain and Zero ShiftRESISTOR-CALCTexas InstrumentsCalculation Utilities
Universal EVM for Single/Dual OpAmps without Shutdown in MSOP/SOIC/SOT-23 PackagesOPAMPEVM-SOT23Texas InstrumentsDevelopment Boards/EVMs
SPICE-Based Analog Simulation ProgramTINA-TITexas InstrumentsSimulators
MDACBufferPro Output Buffer Amplifier Selection ToolMDACBUFFERPRO Texas Instruments Application Software 
Active Filter Design ApplicationFILTERPRO Texas Instruments Application Software 

Related Products
Back to Top Alternative Products - Are similar to OPA121
Part #Name Comments
OPA124 Low Noise Precision Difet Operational Amplifier Similar to OPA121 with 0.25VIO, 4.5mA Iq and 2MHz GBW 
OPA129 Ultra-Low Bias Current Difet Operational Amplifier Similar to OPA121 but with 1.8mA Iq and 1MHz GBW 
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