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THS4508 Status: ACTIVE

Wideband Fully Differential Amplifier

      
         
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Datasheet

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 THS4508
Iq per channel(Max)(mA)39.2  
Slew Rate(Typ)(V/us)6400  
GBW(Typ)(MHz)3000  
Io(Typ)(mA)61  
Vs(Min)(V)5.0  
Vs(Max)(V)5.5  
Number of Channels1  
Pin/Package16QFN  
Acl, min stable gain(V/V)2  
BW @ Acl(MHz)2000  
Vio(Max)(mV)1  
THD (Fc=1 MHz)(Typ)(dB)-98  
Settling Time (0.1%)(Typ)(ns)10  
Offset Voltage Drift (+/-)(Max)(uV/Degrees Celsius)2.6  
Available ChannelsS  
Vn at Flatband(Typ)(nV/rtHz)2.3  
Approx. Price (US$) 4.95 | 1ku  
Iib(Max)(nA)15500  
Noninverting Input Current Noise(pA/rtHz)2.9  
2nd Harmonic(dBc)-72  
3rd Harmonic(dBc)-80  
@ Mhz100  
BW @ G=+2(MHz)2000  
0.1 dB BW Flatness(MHz)400  
Operating Temp Range(Celsius)-40 to 85  
 Samples
 Inventory

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Product Information

Features

  • Fully Differential Architecture
  • Common-Mode Input Range Includes the
    Negative Rail
  • Minimum Gain of 2 V/V (6 dB)
  • Bandwidth: 2 GHz
  • Slew Rate: 6400 V/µs
  • 1% Settling Time: 2 ns
  • HD2: -72 dBc at 100 MHz
  • HD3: -79 dBc at 100 MHz
  • OIP2: 78 dBm at 70 MHz
  • OIP3: 42 dBm at 70 MHz
  • Input Voltage Noise: 2.3 nV/√Hz (f > 10 MHz)
  • Noise Figure: 19.2 dB (G = 10 dB)
  • Output Common-Mode Control
  • 5-V Power Supply Current: 39.2 mA
  • Power-Down Capability: 0.65 mA
  • APPLICATIONS
    • 5-V Data-Acquisition Systems
    • High Linearity ADC Amplifier
    • Wireless Communication
    • Medical Imaging
    • Test and Measurement

DESCRIPTION

The THS4508 is a wideband, fully-differential operational amplifier designed for single-supply 5-V data acquisition systems. It has very low noise at 2.3 nV/√Hz, and extremely low harmonic distortion of -72 dBc HD2 and -79 dBc HD3 at 100 MHz with 2 VPP, G = 10 dB, and 1-Ω load. Slew rate is very high at 6400 Vµs, and with settling time of 2 ns to 1% (2 V step), it is ideal for pulsed applications. It is designed for minimum gain of 6 dB, but is optimized for gain of 10 dB.

To allow for dc coupling to analog-to-digital converters (ADCs), its unique output common-mode control circuit maintains the output common-mode voltage within 5-mV offset (typical) from the set voltage, when set within 0.5 V of mid-supply. The common-mode set point is set to mid-supply by internal circuitry, which may be over-driven from an external source.

The THS4508 is a high-performance amplifier that has been optimized for use in high performance, 5-V single-supply data acquisition systems. The output has been optimized for best performance with its common-mode voltages set to mid-supply, and the input has been optimized for best performance with its common-mode voltage set to 0.7 V. High performance at a low power-supply voltage is ideal for high-performance, single-supply 5-V data-acquisition systems with a minimum parts count. The combined performance of the THS4508 in a gain of 10-dB driving the ADS5500 ADC, sampling at 125 MSPS, is 82-dBc SFDR, and 68.3-dBc SNR with a -1-dBFS signal at 70 MHz.

The THS4508 is offered in a quad 16-pin leadless QFN package (RGT), and is characterized for operation over the full industrial temperature range from -40°C to +85°C.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
THS4508RGTRACTIVE-40 to 854.95 | 1kuQFN (RGT) | 16 View 3000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
THS4508RGTRG4ACTIVE-40 to 854.95 | 1kuQFN (RGT) | 16 View 3000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
THS4508RGTTACTIVE-40 to 855.45 | 1kuQFN (RGT) | 16 View 250 | SMALL T&R Download CAD Format for this Symbol
THS4508RGTTG4ACTIVE-40 to 855.45 | 1kuQFN (RGT) | 16 View 250 | SMALL T&R Download CAD Format for this Symbol

* 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
THS4508RGTRAs of 9:27 AM GMT, 03 Jul 2009As of 9:27 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 14 Weeks AmericasDigiKey  Available
THS4508RGTRG4As of 9:27 AM GMT, 03 Jul 2009As of 9:27 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 14 Weeks AmericasDigiKey  Available
THS4508RGTTAs of 9:27 AM GMT, 03 Jul 2009As of 9:27 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 4 Weeks AmericasDigiKey 183
 Mouser Electronics 211
 Newark 238
 Rochester Electronics >1k
 AsiaWPI 200
THS4508RGTTG4As of 9:27 AM GMT, 03 Jul 2009As of 9:27 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 4 Weeks AmericasDigiKey  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
THS4508RGTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
THS4508RGTRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
THS4508RGTT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
THS4508RGTTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView

* 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 THS4508 Help

Datasheet

Application Notes

Simulation Models

Tools & Software

NamePart # Company Tool / Software Type
Design Methodology for MFB Filters in ADC Interface ApplicationsMFBFILTER-CALCTexas InstrumentsCalculation Utilities
THS4508EVM Evaluation ModuleTHS4508EVMTexas InstrumentsDevelopment Boards/EVMs
THS4511EVM Evaluation ModuleTHS4511EVMTexas InstrumentsDevelopment Boards/EVMs
THS4513EVM Evaluation ModuleTHS4513EVMTexas InstrumentsDevelopment Boards/EVMs
THS4520EVM Evaluation ModuleTHS4520EVMTexas InstrumentsDevelopment Boards/EVMs
Active Filter Design ApplicationFILTERPRO Texas Instruments Application Software 

Part # Name Product Family Comments
ADS5500   14-bit, 125 MSPS ADC Single Ch. Low Power and Superior AC Performance   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTERS   Differential Driver for ADS5500 ADC
See Literature slas459e See applications section of datasheet for an example circuit.    
ADS5424   5V 14bit, 105MSPS High Performance Bipolar Analog-to-Digital Converter   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTERS   Differential Driver for ADS5424 ADC
See Literature slas459e See applications section of datasheet for an example circuit.    
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