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ADS7866 Status: ACTIVE

1.2V, 12 Bit 200KSPS, Serial ADC


      
         
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See Also

  • ADS7867 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  10 bit equivalent device
  • ADS7868 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  8 bit equivalent device
  • ADS7886 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  Faster upgrade for the ADS7866
 ADS7866
Resolution(Bits)12  
Sample Rate (max)200kSPS  
ArchitectureSAR  
Power Consumption(Typ)(mW)0.22  
SINAD(dB)70  
SNR(dB)71  
SFDR(dB)85  
DNL(Max)(+/-LSB)+1.5/-1  
INL(Max)(+/-LSB)1.5  
No Missing Codes(Bits)12  
ENOB(Bits)11.33  
No. of Supplies1  
Analog Voltage AV/DD(Min)(V)1.2  
Analog Voltage AV/DD(Max)(V)3.6  
Logic Voltage DV/DD(Min)(V)1.2  
Logic Voltage DV/DD(Max)(V)3.6  
Input Configuration RangeAVDD  
Reference ModeExt  
RatingCatalog  
Pin/Package6SOT-23  
CommentsSOT23-6  
# Input Channels1  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • ADS7886: 2.35V-5.25V, 12 bit, 1MSPS, Serial ADC

Product Information

Features

  • Single 1.2-V to 3.6-V Supply Operation
  • High Throughput
    • 200/240/280KSPS for 12/10/8-Bit VDD 1.6 V
    • 100/120/140KSPS for 12/10/8-Bit VDD 1.2 V
  • ±1.5LSB INL, 12-Bit NMC (ADS7866)
  • 71 dB SNR, –83 dB THD at fIN = 30 kHz (ADS7866)
  • Synchronized Conversion with SCLK
  • SPI Compatible Serial Interface
  • No Pipeline Delays
  • Low Power
    • 1.39 mW Typ at 200 KSPS, VDD = 3.6 V
    • 0.39 mW Typ at 200 KSPS, VDD = 1.6 V
    • 0.22 mW Typ at 100 KSPS, VDD = 1.2 V
  • Auto Power-Down: 8 nA Typ, 300 nA Max
  • 0 V to VDD Unipolar Input Range
  • 6-Pin SOT-23 Package
  • APPLICATIONS
    • Battery Powered Systems
    • Isolated Data Acquisition
    • Medical Instruments
    • Portable Communication
    • Portable Data Acquisition Systems
    • Automatic Test Equipment

Description

The ADS7866/67/68 are low power, miniature, 12/10/8-bit A/D converters each with a unipolar, single-ended input. These devices can operate from a single 1.6 V to 3.6 V supply with a 200-KSPS throughput for ADS7866. In addition, these devices can maintain at least a 100-KSPS throughput with a supply as low as 1.2 V.

The sampling, conversion, and activation of digital output SDO are initiated on the falling edge of CS\. The serial clock SCLK is used for controlling the conversion rate and shifting data out of the converter. Furthermore, SCLK provides a mechanism to allow digital host processors to synchronize with the con- verter. These converters interface with micro-processors or DSPs through a high-speed SPI compatible serial interface. There are no pipeline delays associated with the device.

The minimum conversion time is determined by the frequency of the serial clock input, SCLK, while the maximum frequency of SCLK is determined by the minimum sampling time required to charge the input capacitance to 12/10/8-bit accuracy for the ADS7866/67/68, respectively. The maximum throughput is determined by how often a conversion is initiated when the minimum sampling time is met and the maximum SCLK frequency is used. Each device automatically powers down after each conversion, which allows each device to save power when the throughput is reduced while using the maximum SCLK frequency.

The converter reference is taken internally from the supply. Hence, the analog input range for these devices is 0 V to VDD.

These devices are available in a 6-pin SOT-23 package and are characterized over the industrial –40°C to 85°C temperature range.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
ADS7866IDBVRACTIVE-40 to 851.85 | 1kuSOT-23 (DBV) | 6 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS7866IDBVRG4ACTIVE-40 to 851.85 | 1kuSOT-23 (DBV) | 6 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS7866IDBVTACTIVE-40 to 852.05 | 1kuSOT-23 (DBV) | 6 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
ADS7866IDBVTG4ACTIVE-40 to 852.05 | 1kuSOT-23 (DBV) | 6 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

Reported Distributor Inventory as of 12:10 PM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksADS7866IDBVR
AmericasRochester Electronics >1k
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksADS7866IDBVRG4
WorldwideDigiKey  Available
TI Lead Time*: 6 WeeksADS7866IDBVT
AsiaWPI 394
WorldwideDigiKey 463
Mouser Electronics 10
TI Lead Time*: 6 WeeksADS7866IDBVTG4
AsiaFarnell Asia 8
EuropeEBV Elektronik 13
Farnell 8
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
ADS7866IDBVR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS7866IDBVRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS7866IDBVT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS7866IDBVTG4 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 ADS7866 Help

Datasheet

Application Notes

View Application Notes for Analog to Digital Converter

User Guides

View User Guides 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
ADS7866EVM Evaluation ModuleADS7866EVMTexas InstrumentsDevelopment Boards/EVMs

Part # Name Product Family Comments
ADS7867   1.2V, 10 bit 240KSPS, Serial ADC   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  10 bit equivalent device  
ADS7868   1.2V, 8 bit 280KSPS, Serial ADC   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  8 bit equivalent device  
ADS7886   2.35V-5.25V, 12 bit, 1MSPS, Serial ADC   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  Faster upgrade for the ADS7866  
OPA365   2.2V, 50MHz, Low-Noise, Single-Supply Rail-to-Rail Operational Amplifier   PRECISION AMPLIFIER - LOW OFFSET VOLTAGE   OPERATIONAL AMPLIFIER    
OPA333   1.8V, 17uA, 2uV, microPOWER CMOS Zero-Drift Series Operational Amplifier   PRECISION AMPLIFIER - LOW OFFSET VOLTAGE   OPERATIONAL AMPLIFIER    
REF5025   Low Noise, Very Low Drift, Precision Voltage Reference   VOLTAGE REFERENCE - SERIES VOLTAGE REFERENCE   SERIES VOLTAGE REFERENCE    
Customers Who Evaluated This Product Also Evaluated...
ADS7886 2.35V-5.25V, 12 bit, 1MSPS, Serial ADC DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.

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