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VCA2618 Status: ACTIVE

Dual, Variable Gain Amplifier with Input Buffer

      
         
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Datasheet

Download - PDF Icon
  • VCA2618: Dual, Variable Gain Amplifier with Input Buffer (Rev. B) (vca2618.pdf, 570 KB)
    06 Nov 2003 Download

 VCA2618
Slew Rate(Typ)(V/us)300  
GBW(Typ)(MHz)100  
Vs(Min)(V)4.75  
Vs(Max)(V)5.25  
Number of Channels2  
Pin/Package32TQFP  
BW @ Acl(MHz)30  
Available ChannelsD  
Vn at Flatband(Typ)(nV/rtHz)5.4  
Gain Range(dB)0 - 45  
Approx. Price (US$) 8.40 | 1ku  
Iib(Max)(nA)1  
Noninverting Input Current Noise(pA/rtHz)0.35  
2nd Harmonic(dBc)50  
3rd Harmonic(dBc)50  
@ Mhz5  
Crosstalk(-dB)65  
Operating Temp Range(Celsius)-40 to 85  
 Samples
 Inventory

Product Information

Features

  • GAIN RANGE: up to 43dB
  • 30MHz BANDWIDTH
  • LOW CROSSTALK: 65dB at Max Gain,5MHz
  • HIGH-SPEED VARIABLE GAIN ADJUST
  • POWER SHUTDOWN MODE
  • HIGH IMPEDANCE INPUT BUFFER
  • APPLICATIONS
    • ULTRASOUND SYSTEMS
    • WIRELESS RECEIVERS
    • TEST EQUIPMENT
    • RADAR

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Description

The VCA2618 is a highly integrated, dual receive channel, Variable Gain Amplifier (VGA) with analog gain control.

The VCA2618’s VGA section consists of two parts: the Voltage Controlled Attenuator (VCA) and the Programmable Gain Amplifier (PGA). The gain and gain range of the PGA can be digitally programmed. The combination of these two programmable elements results in a variable gain ranging from 0dB up to a maximum gain as defined by the user through external connections. The single-ended unity gain input buffer provides predictable high input impedance. The output of the VGA can be used in either a single-ended or differential mode to drive high-performance Analog-to-Digital (A/D) converters. A separate power-down pin reduces power consumption.

The VCA2618 also features low crosstalk and outstanding distortion performance. The combination of low noise and gain range programmability make the VCA2618 a versatile building block in a number of applications where noise performance is critical. The VCA2618 is available in a TQFP-32 package.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
VCA2618YRACTIVE-40 to 858.40 | 1kuTQFP (PBS) | 32 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
VCA2618YTACTIVE-40 to 859.25 | 1kuTQFP (PBS) | 32 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

  TI Inventory Status Reported Distributor Inventory
VCA2618YRAs of 8:45 AM GMT, 20 Nov 2008As of 8:45 AM GMT, 20 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 2000* >10k | 7 Jan 6 Weeks None Reported
View Distributors		   
VCA2618YTAs of 8:45 AM GMT, 20 Nov 2008As of 8:45 AM GMT, 20 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 500* >10k | 8 Jan 6 Weeks AmericasDigiKey 135
  Rochester Electronics >1k
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

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
VCA2618YR  TBD CU NIPDAU Level-3-235C-168 HRViewView
VCA2618YT  TBD CU NIPDAU Level-3-235C-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

Datasheets

  • VCA2618: Dual, Variable Gain Amplifier with Input Buffer (Rev. B) (vca2618.pdf, 570 KB)
    06 Nov 2003 Download

Application Notes

  • Dual-Channel VCAs: Methods for Powering Down One Channel (sboa098.htm, 8 KB)
    11 Jun 2004 Abstract
  • Shelf-Life Evaluation of Lead-Free Component Finishes (szza046.htm, 8 KB)
    24 May 2004 Abstract
  • AB-170: Ultrasound Processor Supplementary Material (sboa083.htm, 8 KB)
    25 Jan 2001 Abstract
  • Thermal and Electrical Properties of Selected Packaging Materials (sbfa010.htm, 8 KB)
    04 Oct 2000 Abstract

User Guides

  • VCA2614/18/19EVM User's Guide (Rev. A) (sbou020a.htm, 8 KB)
    21 Aug 2003 Abstract

Tools & Software

NamePart # Company Tool / Software Type
VCA2618 Evaluation ModuleVCA2618EVMTexas InstrumentsDevelopment Boards/EVMs
VCA2619 Evaluation ModuleVCA2619EVMTexas InstrumentsDevelopment Boards/EVMs

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