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ADS8284 Status: ACTIVE

18 bit, 1 MSPS, 4 channel, Pseudo bipolar, differential ADC with onboard ADC driver OPA


      
         
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See Also

  • ADS8285 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  Input configuration range: VREF
  • ADS8484 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  Without on-chip ADC driver alternative
  • ADS8254 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  16 bit equivalent
 ADS8254 ADS8284ADS8285 
Resolution(Bits)16  18  18  
Sample Rate (max)1MSPS  1MSPS  1MSPS  
ArchitectureSAR  SAR  SAR  
SINAD(dB)95.2  98.3  98.4  
SNR(dB)94  97.5  97.5  
SNR(Typ)(dB)95.4  98.4  98.4  
SFDR(dB)120  121  121  
DNL(Max)(+/-LSB)0.5  +1.5 / -1  +1.5 / -1    
INL(Max)(+/-LSB)0.75  +/-2.5  2.5  
No Missing Codes(Bits)16  18  18  
ENOB(Bits)15.5  15.9  15.9  
No. of Supplies4  4  4  
Analog Voltage AV/DD(Min)(V)4.75  4.75  4.75  
Analog Voltage AV/DD(Max)(V)5.25  5.25  5.25  
Logic Voltage DV/DD(Min)(V)2.7  2.7  2.7  
Logic Voltage DV/DD(Max)(V)5.25  5.25  5.25  
Input Configuration Range+/-Vref    +/-Vref  Vref  
Reference ModeInt and Ext  Int and Ext  Int and Ext  
RatingCatalog  Catalog  Catalog  
Pin/Package64VQFN  64VQFN  64VQFN  
# Input Channels4  4  4  
 SamplesSamplesSamples
 InventoryInventoryInventory Not Available

Customers Who Evaluated This Product Also Evaluated

  • ADS1672: High Speed High Resolution 625kSPS 24 bit Delta Sigma ADC
  • ADS1675: 4MSPS, 24-Bit Analog-to-Digital Converter
  • ADS8255: Analog to Digital Converter

More Related Products

Product Information

Features

  • 1.0-MHz Sample Rate, Zero Latency at Full Speed
  • 18-Bit Resolution
  • Supports Pseudo-Bipolar Differential Input Range: -4 V to +4 V with 2-V Common-Mode
  • Built-In Four Channel, Differential Ended Multiplexer; with Channel Count Selection and Auto/Manual Mode
  • On-Board Differential ADC Driver (OPA)
  • Buffered Reference Output to Level Shift Bipolar ±4-V Input with External Resistance Divider
  • Reference/2 Output to Set Common-Mode for External Signal Conditioner
  • 18-/16-/8-Bit Parallel Interface
  • SNR: 98.4dB Typ at 2-kHz I/P
  • THD: -119dB Typ at 2-kHz I/P
  • Power Dissipation: 331.25 mW at 1 MSPS Including ADC Driver
  • Internal Reference
  • Internal Reference Buffer
  • 64-Pin QFN Package
  • APPLICATIONS
    • Medical Imaging/CT Scanners
    • Automated Test Equipment
    • High-Speed Data Acquisition Systems
    • High-Speed Closed-Loop Systems

Description

The ADS8284 is a high-performance analog system-on-chip (SoC) device with an 18-bit, 1-MSPS A/D converter, 4-V internal reference, an on-chip ADC driver (OPA), and a 4-channel differential multiplexer. The channel count of the multiplexer and auto/manual scan modes of the device are user selectable.

The ADC driver is designed to leverage the very high noise performance of the differential ADC at optimum power usage levels.

The ADS8284 outputs a buffered reference signal for level shifting of a ±4-V bipolar signal with an external resistance divider. A Vref/2 output signal is available to set the common-mode of a signal conditioning circuit. The device also includes an 18-/16-/8-bit parallel interface.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusPrice | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSamples
ADS8284IBRGCRACTIVE29.50 | 1kuVQFN (RGC) | 64 View 2000 | LARGE T&RPurchase Samples
ADS8284IBRGCTACTIVE31.70 | 1kuVQFN (RGC) | 64 View 250 | SMALL T&R
ADS8284IRGCRACTIVE22.00 | 1kuVQFN (RGC) | 64 View 2000 | LARGE T&RPurchase Samples
ADS8284IRGCTACTIVE24.20 | 1kuVQFN (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 12:17 PM GMT, 20 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksADS8284IBRGCR
None Reported
View Distributors
TI Lead Time*: 20 WeeksADS8284IBRGCT
AmericasArrow 250
Newark 242
AsiaFarnell Asia 242
WorldwideDigiKey 547
TI Lead Time*: 20 WeeksADS8284IRGCR
None Reported
View Distributors
TI Lead Time*: 20 WeeksADS8284IRGCT
None Reported
View Distributors
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
ADS8284IBRGCR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
ADS8284IBRGCT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
ADS8284IRGCR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
ADS8284IRGCT 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 ADS8284 Help

Datasheet

Application Notes

View Application Notes for Analog to Digital Converter

Tools & Software

NamePart # Company Tool / Software Type
Anti-Aliasing Calculation Tool for A to D ConvertersANTIALIASINGCALCTexas InstrumentsCalculation Utilities
Op Amp to ADC Circuit Topology CalculatorADC-INPUT-CALCTexas InstrumentsCalculation Utilities

Part # Name Product Family Comments
ADS8285   Analog to Digital Converter   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  Input configuration range: VREF  
ADS8484   18 Bit 1.25MSPS Parallel ADC W/Ref, Pseudo Bipolar, Fully Differential Input   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  Without on-chip ADC driver alternative  
ADS8254   16-Bit, 4 Channel Differential Complete Acquisition Solution (ADC, REF, and Input Buffer)   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  16 bit equivalent  
REF5040   Low Noise, Very Low Drift, Precision VOLTAGE REFERENCE   VOLTAGE REFERENCE - SERIES VOLTAGE REFERENCE   Optional high accuracy external reference    
Customers Who Evaluated This Product Also Evaluated...
ADS1672 High Speed High Resolution 625kSPS 24 bit Delta Sigma ADC DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
ADS1675 4MSPS, 24-Bit Analog-to-Digital Converter DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
ADS8255 Analog to Digital Converter DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
ADS8254 16-Bit, 4 Channel Differential Complete Acquisition Solution (ADC, REF, and Input Buffer) DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
ADS8285 Analog to Digital Converter DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
ADS8556 630kSPS, 6-Channels, Simultaneous Sampling Analog-to-Digital Converter DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.

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