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VCA8617 Status: ACTIVE

8-Channel Variable Gain Amplifier

      
         
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Datasheet

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  • 8-Channel Variable Gain Amplifier (Rev. E) (vca8617.pdf, 750 KB)
    20 Nov 2007 Download

 VCA8617
Slew Rate(Typ)(V/us)300  
GBW(Typ)(MHz)100  
Vs(Min)(V)2.85  
Vs(Max)(V)3.15  
Number of Channels8  
Pin/Package64TQFP  
BW @ Acl(MHz)14.5  
Available ChannelsO  
Gain Range(dB)25,30,35,40  
Approx. Price (US$) 24.00 | 1ku  
2nd Harmonic(dBc)60  
3rd Harmonic(dBc)65  
Operating Temp Range(Celsius)-40 to 85  
 Samples
 Inventory

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  • VCA8500: 8-Channel, Ultra-Low Power Variable Gain Amplifier With Low-Noise Pre-Amp
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  • THS7530: Fully Differential, Continuously Variable Gain Amplifier
  • ADS5277: 8-Channel, 10-Bit, 65 MSPS Analog to Digital Converter
  • TSC2003: 4-wire Touch Screen Controller
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Product Information

Features

  • 3V OPERATION
  • LOW INPUT NOISE:
    • 1.05nV/Hz at fIN = 5MHz
  • EXTREMELY LOW POWER OPERATION:
    • 103mW/CHANNEL
  • INTEGRATED LOW-PASS, ANTI-ALIASING BUTTERWORTH FILTER
    • 14.5MHz BANDWIDTH
  • INTEGRATED INPUT CLAMP DIODES
  • DIFFERENTIAL OUTPUT
  • INTEGRATED INPUT LNA
  • READABLE CONTROL REGISTERS
  • INTEGRATED CONTINUOUS WAVE (CW) PROCESSOR

All other trademarks are the property of their respective owners.

Description

The VCA8617 is an 8-channel variable gain amplifier ideally suited to portable ultrasound applications. Excellent dynamic performance enables use in low-power, high-performance portable applications. Each channel consists of a 20dB gain Low-Noise pre-Amplifier (LNA) and a Variable Gain Amplifier (VGA). The differential outputs of the LNA can be switched through the 8×10 cross-point switch, which is programmable through the serial interface input port.

The output of the LNA is fed directly into the VGA stage. The VGA consists of two parts, a Voltage-Controlled Attenuator (VCA) and a Programmable Gain Amplifier (PGA). The gain and gain range of the PGA can be digitally configured separately. The gain of the PGA can vary between four discrete settings of 25dB, 30dB, 35dB, and 40dB. The VCA has four programmable maximum attenuation settings: 29dB, 33dB, 36.5dB, and 40dB. Also, the VCA can be continuously varied by a control voltage from 0dB to a maximum of 29dB, 33dB, 36.5dB, and 40dB.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
VCA8617PAGRACTIVE-40 to 8524.00 | 1kuTQFP (PAG) | 64 View 1500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
VCA8617PAGRG4ACTIVE-40 to 8524.00 | 1kuTQFP (PAG) | 64 View 1500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
VCA8617PAGTACTIVE-40 to 8524.00 | 1kuTQFP (PAG) | 64 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
VCA8617PAGTG4ACTIVE-40 to 8524.00 | 1kuTQFP (PAG) | 64 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
VCA8617PAGRAs of 8:45 AM GMT, 20 Nov 2008As of 8:45 AM GMT, 20 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 2620 | 28 Jan 12 Weeks None Reported
View Distributors		   
 >10k | 30 Jan     
VCA8617PAGRG4As of 8:45 AM GMT, 20 Nov 2008As of 8:45 AM GMT, 20 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 2620 | 28 Jan 12 Weeks None Reported
View Distributors		   
 >10k | 30 Jan     
VCA8617PAGTAs of 8:45 AM GMT, 20 Nov 2008As of 8:45 AM GMT, 20 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 >10k* >10k | 16 Jan 6 Weeks AmericasDigiKey 704
  EuropeAvnet-SILICA 74
VCA8617PAGTG4As of 8:45 AM GMT, 20 Nov 2008As of 8:45 AM GMT, 20 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 >10k* >10k | 16 Jan 6 Weeks None Reported
View Distributors		   
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
VCA8617PAGR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-4-260C-72 HRViewView
VCA8617PAGRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-4-260C-72 HRViewView
VCA8617PAGT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-4-260C-72 HRViewView
VCA8617PAGTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-4-260C-72 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

  • 8-Channel Variable Gain Amplifier (Rev. E) (vca8617.pdf, 750 KB)
    20 Nov 2007 Download

Application Notes

  • Interfacing the VCA8617 with High-Speed ADCs (sbaa130.htm, 8 KB)
    05 Apr 2005 Abstract
  • VCA8617: Response to Step-Change in Gain Control (sboa105.htm, 8 KB)
    24 Mar 2005 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
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