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VCA8500 Status: ACTIVE

8-Channel, Ultra-Low Power Variable Gain Amplifier With Low-Noise Pre-Amp


      
         
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 VCA8500
GBW(Typ)(MHz)70  
Vs(Min)(V)3.14  
Vs(Max)(V)3.47  
Number of Channels8  
Pin/Package64VQFN  
BW @ Acl(MHz)10, 15  
Available ChannelsO  
Gain Range(dB)20, 25, 27, 30  
Approx. Price (US$) 40.00 | 100u  
Noninverting Input Current Noise(pA/rtHz)3  
Crosstalk(-dB)55  
Operating Temp Range(Celsius)-40 to 85  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • VCA820: 150MHz BW with linear in dB gain control variable gain amplifier
  • VCA8617: 8-Channel Variable Gain Amplifier
  • VCA810: High-Gain Adjustable Range, Wideband, Voltage-Controlled Amplifier
  • ADS5281: Low Power 8-Channel, 12-Bit, 50MSPS ADC with Serialized LVDS Interface

More Related Products

Product Information

Features

  • Ultralow Power: 65mW/Channel
  • Low Noise: 0.8nV/Hz
  • Low-Noise Pre-Amp (LNP):
    • 20dB Fixed Gain
    • 250mVPP Linear Input Range
  • Variable Gain Amplifier:
    • Gain Control Range: 46dB
    • Selectable PGA Gain:
      20dB, 25dB, 27dB, 30dB
    • Fast Overload Recovery
    • Output Clamping Control
  • Integrated Low-Pass Filter:
    • Second-Order, Linear Phase
    • Bandwidth: 10MHz, 15MHz
  • High Accuracy:
    • Low Gain Error: ±0.5dB
    • Excellent Channel Matching: ±0.25dB
  • Distortion, HD2: -50dBc at 5MHz
  • Integrated CW Switch Matrix:
    • Easy Current Summing
  • Serial Control Interface
  • Small Package: QFN-64, 9×9mm
  • APPLICATIONS
    • Medical Imaging, Ultrasound Systems
      • Portable Systems
      • Low- and Mid-Range Systems

PowerPAD Is a trademark of Texas Instruments.

Infineon Is a trademark of Texas Instruments.

SPI is a trademark of Motorola.

All other trademarks are the property of their respective owners

Description

The VCA8500 is an 8-channel variable gain amplifier consisting of a low-noise pre-amplifier (LNP) and a variable-gain amplifier (VGA). This combination, along with the device features, makes it ideal for a variety of ultrasound systems.

The LNP gain is fixed at 20dB, and has excellent noise and signal handling characteristics. The gain of the voltage-controlled attenuator can vary over a 46dB range with a 0V to 1.2V control voltage common to all channels of the VCA8500.

The post-gain amplifier (PGA) can be programmed for four gain settings: 20dB, 25dB, 27dB, or 30dB gain. As a means to improve system overload recovery time, the VCA8500 provides an internal clamping function. The PGA settings as well the clamp levels are controlled through the serial interface.

The VCA8500 is built on TI's BiCOM process and is available in a small QFN-64 PowerPAD package.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSamples
VCA8500IRGCRACTIVE-40 to 8540.00 | 100uVQFN (RGC) | 64 View 2000 | LARGE T&RPurchase Samples
VCA8500IRGCRG4ACTIVE-40 to 8540.00 | 100uVQFN (RGC) | 64 View 2000 | LARGE T&RPurchase Samples
VCA8500IRGCTACTIVE-40 to 8540.00 | 100uVQFN (RGC) | 64 View 250 | SMALL T&R
VCA8500IRGCTG4ACTIVE-40 to 8540.00 | 100uVQFN (RGC) | 64 View 250 | SMALL T&R

* 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 9:38 AM GMT, 06 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksVCA8500IRGCR
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksVCA8500IRGCRG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksVCA8500IRGCT
AsiaWPI 153
WorldwideDigiKey 185
TI Lead Time*: 20 WeeksVCA8500IRGCTG4
WorldwideDigiKey  Available
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
VCA8500IRGCR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
VCA8500IRGCRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
VCA8500IRGCT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
VCA8500IRGCTG4 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 VCA8500 Help

Datasheet

Application Notes

User Guides

Tools & Software

NamePart # Company Tool / Software Type
ADS5281EVM Evaluation BoardADS5281EVMTexas InstrumentsDevelopment Boards/EVMs
ADS5282EVM Evaluation ModuleADS5282EVMTexas InstrumentsDevelopment Boards/EVMs
ADS5287EVM Evaluation ModuleADS5287EVMTexas InstrumentsDevelopment Boards/EVMs
VCA8500BOARD 8-Channel VGA + LNP Devlopment BoardVCA8500BOARDTexas InstrumentsDevelopment Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
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VCA8617 8-Channel Variable Gain Amplifier AMPLIFIERS AND LINEAR-VARIABLE GAIN AMPLIFIER TI customers also evaluated this product.
VCA810 High-Gain Adjustable Range, Wideband, Voltage-Controlled Amplifier AMPLIFIERS AND LINEAR-VARIABLE GAIN AMPLIFIER TI customers also evaluated this product.
THS7530 Fully Differential, Continuously Variable Gain Amplifier AMPLIFIERS AND LINEAR-VARIABLE GAIN AMPLIFIER TI customers also evaluated this product.
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THS7001 70-MHz High-Speed Programmable-Gain Amplifier AMPLIFIERS AND LINEAR-VARIABLE GAIN AMPLIFIER TI customers also evaluated this product.
VCA2617 2-Channel Variable Gain Amplifier AMPLIFIERS AND LINEAR-VARIABLE GAIN AMPLIFIER TI customers also evaluated this product.
VCA8613 VCA8613: 8-Channel Variable Gain Amplifier AMPLIFIERS AND LINEAR-VARIABLE GAIN AMPLIFIER TI customers also evaluated this product.
ADS5281 Low Power 8-Channel, 12-Bit, 50MSPS ADC with Serialized LVDS Interface DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.

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