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VCA2611 Status: ACTIVE

Dual, Variable Gain Amplifier with Low-Noise Preamp

      
         
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 VCA2611
Slew Rate(Typ)(V/us)300  
GBW(Typ)(MHz)80  
Vs(Min)(V)4.75  
Vs(Max)(V)5.25  
Number of Channels2  
Pin/Package48TQFP  
BW @ Acl(MHz)40  
Available ChannelsD  
Vn at Flatband(Typ)(nV/rtHz)4.2  
Gain Range(dB)5,17,22,25  
Approx. Price (US$) 10.25 | 1ku  
Iib(Max)(nA)1  
Noninverting Input Current Noise(pA/rtHz)0.35  
2nd Harmonic(dBc)63  
3rd Harmonic(dBc)71  
@ Mhz5  
Crosstalk(-dB)66  
Operating Temp Range(Celsius)-40 to 85  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • THS7001: 70-MHz High-Speed Programmable-Gain Amplifier
  • VCA2619: Dual, Variable Gain Amplifier with Input Buffer
  • VCA2617: 2-Channel Variable Gain Amplifier
  • TPS5420: 5.5V to 36V, 2A, 500kHz Step Down SWIFT™ Converter
  • OPA827: Low-Noise, High-Precision, JFET-Input Operational Amplifier

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Product Information

Features

  • LOW-NOISE PREAMP:
    • Low Input Noise: 0.95nV/Hz
    • Active Termination Noise Reduction
    • Switchable Termination Value
    • 80MHz Bandwidth
    • 5dB to 25dB Gain
    • Differential In and Out
  • LOW-NOISE VARIABLE GAIN AMPLIFIER:
    • Low Noise VCA
    • Up to 40dB Gain Range
    • 40MHz Bandwidth
    • Differential In and Out
  • LOW CROSSTALK: 66dB at Max Gain, 5MHz
  • HIGH-SPEED VARIABLE GAIN ADJUST
  • SWITCHABLE EXTERNAL PROCESSING
  • APPLICATIONS
    • ULTRASOUND SYSTEMS
    • WIRELESS RECEIVERS
    • TEST EQUIPMENT

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Description

The VCA2616 and VCA2611 are dual, Low-Noise Preamplifiers (LNP), plus low-noise Variable Gain Amplifiers (VGA). The VCA2611 is an upgraded version of the VCA2616. The only difference between the VCA2616 and the VCA2611 is the input structure to the LNP. The VCA2616 is limited to –0.3V negative-going input spikes; the VCA2611 is limited to –2.0V negative-going input spikes. This change allows the user to use slower and less expensive input clamping diodes prior to the LNP input. In some designs, input clamping may not be required.

The combination of Active Termination (AT) and Maximum Gain Select (MGS) allow for the best noise performance. The VCA2616 and VCA2611 also feature low crosstalk and outstanding distortion performance.

The LNP has differential input and output capability and is strappable for gains of 5dB, 17dB, 22dB, or 25dB. Low input impedance is achieved by AT, resulting in as much as a 4.6dB improvement in noise figure over conventional shunt termination. The termination value can also be switched to accommodate different sources. The output of the LNP is available for external signal processing.

The variable gain is controlled by an analog voltage whose gain varies from 0dB to the gain set by the MGS. The ability to program the variable gain also allows the user to optimize dynamic range. The VCA input can be switched from the LNP to external circuits for different applications. The output can be used in either a single-ended or differential mode to drive high-performance Analog-to-Digital (A/D) converters, and is cleanly limited for optimum overdrive recovery.

The combination of low noise, gain, and gain range programmability makes the VCA2616 and VCA2611 versatile building blocks in a number of applications where noise performance is critical. The VCA2616 and VCA2611 are available in a TQFP-48 package.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
VCA2611Y/250ACTIVE 11.35 | 1kuTQFP (PFB) | 48 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
VCA2611Y/2KACTIVE-40 to 8510.25 | 1kuTQFP (PFB) | 48 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

  TI Inventory Status Reported Distributor Inventory
VCA2611Y/250As of 8:00 AM GMT, 03 Jul 2009As of 8:00 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 6 Weeks AmericasDigiKey 536
 Rochester Electronics >1k
VCA2611Y/2KAs of 8:00 AM GMT, 03 Jul 2009As of 8:00 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 10 Weeks AmericasDigiKey  Available
 Rochester Electronics >1k
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
VCA2611Y/250 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
VCA2611Y/2K 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

Most useful technical documents for VCA2611 Help

Datasheet

Application Notes

User Guides

Tools & Software

NamePart # Company Tool / Software Type
VCA2611 Evaluation ModuleVCA2611EVMTexas InstrumentsDevelopment Boards/EVMs

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