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VCA2616 Status: ACTIVE

Dual, Variable Gain Amlifier w/Low Noise Pre-Amp


      
         
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 VCA2616
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  
 Samples
 Inventory

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  • XTR105: 4-20mA Current Transmitter with Sensor Excitation and Linearization
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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

All trademarks are the property of their respective owners.

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
DeviceStatusPrice | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
VCA2616YRACTIVE10.25 | 1kuTQFP (PFB) | 48 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
VCA2616YTACTIVE11.35 | 1kuTQFP (PFB) | 48 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint

* 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 9:39 AM GMT, 06 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksVCA2616YR
AmericasRochester Electronics >1k
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksVCA2616YT
AsiaWPI 164
WorldwideDigiKey 502
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
VCA2616YR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
VCA2616YT 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 VCA2616 Help

Datasheet

Application Notes

User Guides

Tools & Software

NamePart # Company Tool / Software Type
VCA2611 Evaluation ModuleVCA2611EVMTexas InstrumentsDevelopment Boards/EVMs
VCA2616 Evaluation ModuleVCA2616EVMTexas InstrumentsDevelopment Boards/EVMs

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