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TL441 Status: ACTIVE

Logarithmic Amplifier


      
         
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 TL441
Scale Factor(Typ)(V/decade)0.008  
Iq(Max)(mA)23  
Full-Scale Output Voltage(Typ)(+/- V)0.040  
Operating Temp Range(Celsius)0 to 70  
Pin/Package16PDIP, 16SO  
 Samples
 Inventory

Other qualified versions of TL441

Version Part Number Definition
Enhanced Product TL441-EP Supports Defense, Aerospace and Medical Applications

Customers Who Evaluated This Product Also Evaluated

  • LOG104: Logarithmic Amplifier
  • LOG114: Precision High-Speed Logarithmic Amplifier with 2.5V Reference and Uncommitted Output Op Amps
  • LOG101: Logarithmic Amplifier

    • Product Information

    Features

    • Excellent Dynamic Range
    • Wide Bandwidth
    • Built-In Temperature Compensation
    • Log Linearity (30-dB Sections)...1 dB Typ
    • Wide Input Voltage Range

    Description

    This amplifier circuit contains four 30-dB logarithmic stages. Gain in each stage is such that the output of each stage is proportional to the logarithm of the input voltage over the 30-dB input voltage range. Each half of the circuit contains two of these 30-dB stages summed together in one

    differential output that is proportional to the sum of the logarithms of the input voltages of the two stages. The four stages may be interconnected to obtain a theoretical input voltage range of 120-dB. In practice, this permits the input voltage range typically to be greater than 80-dB with log linearity of ± 0.5-dB (see application data). Bandwidth is from dc to 40 MHz.

    This circuit is useful in data compression and analog compensation. This logarithmic amplifier is used in log IF circuitry as well as video and log amplifiers.

    The TL441 is characterized for operation over 0°C to 70°C.

    		    

    Pricing / Packaging / CAD Design Tools / Samples

    PricePackagingCAD Design ToolsSamples
    DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
    TL441CNACTIVE0 to 703.89 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
    TL441CNE4ACTIVE0 to 703.89 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
    TL441CNSRACTIVE0 to 703.89 | 1kuSO (NS) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
    TL441CNSRE4ACTIVE0 to 703.89 | 1kuSO (NS) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
    TL441CNSRG4ACTIVE0 to 703.89 | 1kuSO (NS) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples

    * 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

    Reported Distributor Inventory as of 10:35 AM GMT, 08 Nov 2009
    RegionCompanyIn StockPurchase
    TI Lead Time*: 18 WeeksTL441CN
    AmericasRochester Electronics >1k
    WorldwideMouser Electronics 244
    TI Lead Time*: 18 WeeksTL441CNE4
    None Reported
    View Distributors
    TI Lead Time*: 11 WeeksTL441CNSR
    AmericasRochester Electronics 700
    TI Lead Time*: 11 WeeksTL441CNSRE4
    None Reported
    View Distributors
    TI Lead Time*: 11 WeeksTL441CNSRG4
    None Reported
    View Distributors
    View all Distributors  

    ** 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

     Product ContentDPPM / MTBF / FIT Rate
    DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
    TL441CN RoHS Compliant Pb-Free (RoHS) CU NIPDAU N/A for Pkg TypeViewView
    TL441CNE4 RoHS Compliant Pb-Free (RoHS) CU NIPDAU N/A for Pkg TypeViewView
    TL441CNSR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    TL441CNSRE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    TL441CNSRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView

    * 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

    Most useful technical documents for TL441 Help

    Datasheet

    Customers Who Evaluated This Product Also Evaluated...
    Part # Name Product Family Comments
    LOG104 Logarithmic Amplifier SPECIAL FUNCTION AMPLIFIER-LOGARITHMIC AMPLIFIER TI customers also evaluated this product.
    LOG114 Precision High-Speed Logarithmic Amplifier with 2.5V Reference and Uncommitted Output Op Amps SPECIAL FUNCTION AMPLIFIER-LOGARITHMIC AMPLIFIER TI customers also evaluated this product.
    LOG101 Logarithmic Amplifier SPECIAL FUNCTION AMPLIFIER-LOGARITHMIC AMPLIFIER TI customers also evaluated this product.
    LOG2112 Precision Logarithmic and Log Ratio Amplifier with On-Chip 2.5V Voltage Reference SPECIAL FUNCTION AMPLIFIER-LOGARITHMIC AMPLIFIER TI customers also evaluated this product.
    LOG112 Precision Logarithmic and Log Ratio Amplifier with On-Chip 2.5V Voltage Reference SPECIAL FUNCTION AMPLIFIER-LOGARITHMIC AMPLIFIER TI customers also evaluated this product.
    LOG102 Logarithmic and Log Ratio Amplifier SPECIAL FUNCTION AMPLIFIER-LOGARITHMIC AMPLIFIER TI customers also evaluated this product.
    TL441-EP Enhanced Product Logarithmic Amplifier SPECIAL FUNCTION AMPLIFIER-LOGARITHMIC AMPLIFIER TI customers also evaluated this product.

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