TI Home > Semiconductors > Amplifiers and Linear > Special Function Amplifier > Logarithmic Amplifier >

LOG114 Status: ACTIVE

Precision High-Speed Logarithmic Amplifier with 2.5V Reference and Uncommitted Output Op Amps


      
         
Alert me about changes<br/>to this product

 LOG114
Scale Factor(V/decade)0.375  
Input Current Range(Min)(nA)0.1  
Input Current Range(Max)(mA)10  
Conformity Error (initial 5 decades)(Max)(%)0.2  
Conformity Error (initial 5 decades) (typ. over temp)(%/degree C)0.1  
Offset Voltage (Input Amplifiers)(Max)(mV)4  
Vs (+/-)(Min)(V)4.8  
Vs (+/-)(Max)(V)11  
Iq(Max)(mA)15  
Reference TypeInternal  
Auxiliary Op Amps2  
Operating Temp Range(Celsius)0 to 70  
Pin/Package16QFN  
RatingCatalog  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • LOG104: Logarithmic Amplifier
  • LOG112: Precision Logarithmic and Log Ratio Amplifier with On-Chip 2.5V Voltage Reference
  • LOG2112: Precision Logarithmic and Log Ratio Amplifier with On-Chip 2.5V Voltage Reference
  • TL441: Logarithmic Amplifier
  • ADS1241: 24-Bit Analog-to-Digital Converter
  • PTH08T220W: 16-A, 4.5-V to 14-V Input, Non-Isolated, Wide Output Adjust, Power Module w/ TurboTrans

More Related Products

Product Information

Features

  • ADVANTAGES:
    • - Tiny for High Density Systems
    • - Precision on One Supply
    • - Fast Over Eight Decades
    • - Fully-Tested Function
  • TWO SCALING AMPLIFIERS
  • WIDE INPUT DYNAMIC RANGE: Eight Decades, 100pA to 10mA
  • 2.5V REFERENCE
  • STABILE OVER TEMPERATURE
  • LOW QUIESCENT CURRENT: 10mA
  • DUAL OR SINGLE SUPPLY: ±5V, +5V
  • PACKAGE: Small QFN-16 (4mm x 4mm)
  • SPECIFIED TEMPERATURE RANGE: –5°C to +75°C
  • APPLICATIONS
    • ONET ERBIUM-DOPED FIBER OPTIC AMPLIFIER (EDFA)
    • LASER OPTICAL DENSITY MEASUREMENT
    • PHOTODIODE SIGNAL COMPRESSION AMP
    • LOG, LOG-RATIO FUNCTION
    • ANALOG SIGNAL COMPRESSION IN FRONT OF ANALOG-TO-DIGITAL (ADC) CONVERTER
    • ABSORBANCE MEASUREMENT

View All Features in Datasheet

Description

The LOG114 is specifically designed for measuring low-level and wide dynamic range currents in communications, lasers, medical, and industrial systems. The device computes the logarithm or log-ratio of an input current or voltage relative to a reference current or voltage (logarithmic transimpedance amplifier).

High precision is ensured over a wide dynamic range of input signals on either bipolar (±5V) or single (+5V) supply. Special temperature drift compensation circuitry is included on-chip. In log-ratio applications, the signal current may be from a high impedance source such as a photodiode or resistor in series with a low impedance voltage source. The reference current is provided by a resistor in series with a precision internal voltage reference, photo diode, or active current source.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
LOG114AIRGVRACTIVE0 to 707.90 | 1kuQFN (RGV) | 16 View 2500 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
LOG114AIRGVRG4ACTIVE0 to 707.90 | 1kuQFN (RGV) | 16 View 2500 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
LOG114AIRGVTACTIVE0 to 708.70 | 1kuQFN (RGV) | 16 View 250 | SMALL T&R Download CAD Format for this SymbolContact TI Distributor or Sales Office
LOG114AIRGVTG4ACTIVE0 to 708.70 | 1kuQFN (RGV) | 16 View 250 | SMALL T&R Download CAD Format for this SymbolContact 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

Reported Distributor Inventory as of 11:54 AM GMT, 20 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 16 WeeksLOG114AIRGVR
None Reported
View Distributors
TI Lead Time*: 16 WeeksLOG114AIRGVRG4
None Reported
View Distributors
TI Lead Time*: 20 WeeksLOG114AIRGVT
AsiaWPI 260
EuropeCompel 22
TI Lead Time*: 20 WeeksLOG114AIRGVTG4
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
LOG114AIRGVR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
LOG114AIRGVRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
LOG114AIRGVT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
LOG114AIRGVTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView

* 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 LOG114 Help

Datasheet

Simulation Models

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.
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.
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.
LOG101 Logarithmic Amplifier 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 Logarithmic Amplifier AMPLIFIERS (SL)-LOGARITHMIC AMPLIFIERS (SL) TI customers also evaluated this product.
ADS1241 24-Bit Analog-to-Digital Converter DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
PTH08T220W 16-A, 4.5-V to 14-V Input, Non-Isolated, Wide Output Adjust, Power Module w/ TurboTrans PLUG-IN POWER MODULES-NON-ISOLATED POL TI customers also evaluated this product.
TLV5630 2.7V to 5.5V 12-Bit 8-Channel Serial DAC W/Int Ref DATA CONVERTERS-DIGITAL TO ANALOG CONVERTER TI customers also evaluated this product.
OPA541 High Power Monolithic Operational Amplifier PRECISION AMPLIFIER-HIGH OUTPUT CURRENT TI customers also evaluated this product.
OPA404 Quad High Speed Precision Difet(R) Operational Amplifier PRECISION AMPLIFIER-WIDE BANDWIDTH TI customers also evaluated this product.
ONET1101L 11.3 Gbps Laser Diode Driver OPTICAL MODULE ICs-LASER DRIVER TI customers also evaluated this product.
PGA203 Digitally Controlled Programmable-Gain Instrumentation Amp AMPLIFIERS AND LINEAR-PROGRAMMABLE GAIN AMPLIFIER TI customers also evaluated this product.
DAC8871 16-Bit Single Channel, Serial Interface, +/-18V (High Voltage Bipolar) Output DAC DATA CONVERTERS-DIGITAL TO ANALOG CONVERTER TI customers also evaluated this product.
INA101 Very High Accuracy Instrumentation Amplifier INSTRUMENTATION AMPLIFIER-DUAL SUPPLY TI customers also evaluated this product.

Support and Community

Customer Tags Help

No Tags are Available for this Part Number

Other Support



Click Here