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DDC114 Status: ACTIVE

DDC114: Quad Current Input 20-Bit Analog-To-Digital Converter

      
         
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See Also

  • DDC232 - 32 channel version. Functionally equivalent
  • DDC118 - Functionally equivalent. 8 channel version
  • DDC112 - Functionally equivalent. 2 channel version

Datasheet

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 DDC112 DDC114DDC118 DDC232 DDC316 
Resolution(Bits)20  20  20  20  16  
Sample Rate (max)3kSPS  3.125kSPS  3.125kSPS  6kSPS  100000SPS  
ArchitectureDelta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  
Power Consumption(Typ)(mW)80  54  108  320  540  
No Missing Codes(Bits)20  20  20  20  16  
ENOB(Bits)20  20  20  20  16  
No. of Supplies2  2  2  1  2  
Analog Voltage AV/DD(Min)(V)4.75  4.75  4.75  4.75  4.75  
Analog Voltage AV/DD(Max)(V)5.25  5.25  5.25  5.25  5.25  
Logic Voltage DV/DD(Min)(V)4.75  2.7  2.7  2.7  2.7  
Logic Voltage DV/DD(Max)(V)5.25  5.25  5.25  3.3  3.3  
Input Configuration Range50-1000 pC  12 to 350pC  12.5 to 350pC  12.5 to 350pC  3 to 12pC  
Pin/Package28SOIC, 32TQFP  48QFN  48QFN  64NFBGA  64NFBGA  
CommentsDirect connection to photo-diode sensor  Direct connection to photo-diode sensor  Direct connection to photo-diode sensor    
Search Sample Rate(Max)(SPS)3000  3125  3125  6000  100000  
# Input Channels 4    16  
 SamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • DDC112: Dual Current Input 20-Bit Analog-To-Digital Converter
  • DDC118: Octal Current-Input 20-Bit Analog-to-Digital Converter
  • DDC232: 32 Channel Current-Input 20-bit ADC
  • SN74LVC1G14: Single Schmitt-Trigger Inverter
  • OPA552: High-Voltage, High-Current Operational Amplifiers
  • ADS8507: 16-Bit 40KSPS Analog-to-Digital Converter w/Internal Reference and Parallel/Serial Interface

More Related Products

Product Information

Features

  • SINGLE-CHIP SOLUTION TO DIRECTLY MEASURE FOUR LOW-LEVEL CURRENTS
  • HIGH PRECISION, TRUE INTEGRATING FUNCTION
  • INTEGRAL LINEARITY:
       ±0.01% of Reading ±0.5ppm of FSR
  • VERY LOW NOISE: 5.2ppm of FSR
  • LOW POWER: 13.5mW/channel
  • ADJUSTABLE DATA RATE: Up to 3.125kSPS
  • PROGRAMMABLE FULL SCALE
  • DAISY-CHAINABLE SERIAL INTERFACE
  • APPLICATIONS
    • CT SCANNER DAS
    • PHOTODIODE SENSORS
    • INFRARED PYROMETER
    • LIQUID/GAS CHROMATOGRAPHY

Protected by US Patent #5841310
All trademarks are the property of their respective owners.

Description

The DDC114 is a 20-bit quad channel, current-input analog-to-digital (A/D) converter. It combines both current-to-voltage and A/D conversion so that four low-level current output devices, such as photodiodes, can be directly connected to its inputs and digitized.

For each of the four inputs, the DDC114 provides a dual-switched integrator front-end. This design allows for continuous current integration: while one integrator is being digitized by the onboard A/D converter, the other is integrating the input current. Adjustable full-scale ranges from 12pC to 350pC and adjustable integration times from 50µs to 1s allow currents from fAs to µAs to be measured with outstanding precision. Low-level linearity is ±0.5ppm of the full-scale range and noise is 5.2ppm of the full-scale range.

Two modes of operation are provided. In Low-Power mode, total power dissipation is only 13.5mW per channel with a maximum data rate of 2.5kSPS. High-Speed mode supports data rates up to 3.125kSPS with a corresponding dissipation of 18mW per channel.

The DDC114 has a serial interface designed for daisy-chaining in multi-device systems. Simply connect the output of one device to the input of the next to create the chain. Common clocking feeds all the devices in the chain so that the digital overhead in a multi-DDC114 system is minimal.

The DDC114 is a single-supply device using a +5V analog supply and supporting a +2.7V to +5.25V digital supply. Operating over the industrial temperature range of -40°C to 85°C, the DDC114 is offered in a QFN-48 package.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
DDC114IRTCRACTIVE-40 to 8519.30 | 1kuQFN (RTC) | 48 View 2500 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
DDC114IRTCRG3ACTIVE-40 to 8519.30 | 1kuQFN (RTC) | 48 View 2500 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
DDC114IRTCTACTIVE-40 to 8520.35 | 1kuQFN (RTC) | 48 View 250 | SMALL T&R Download CAD Format for this Symbol
DDC114IRTCTG3ACTIVE-40 to 8520.35 | 1kuQFN (RTC) | 48 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
DDC114IRTCRAs of 11:30 AM GMT, 03 Jul 2009As of 11:30 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 8 Weeks AmericasDigiKey  Available
DDC114IRTCRG3As of 11:30 AM GMT, 03 Jul 2009As of 11:30 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 8 Weeks AmericasDigiKey  Available
DDC114IRTCTAs of 11:30 AM GMT, 03 Jul 2009As of 11:30 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 4 Weeks AmericasDigiKey 167
 Newark 137
DDC114IRTCTG3As of 11:30 AM GMT, 03 Jul 2009As of 11:30 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
DDC114IRTCR RoHS Compliant Green (RoHS & no Sb/Br) CU SN Level-3-260C-168 HRViewView
DDC114IRTCRG3 RoHS Compliant Green (RoHS & no Sb/Br) CU SN Level-3-260C-168 HRViewView
DDC114IRTCT RoHS Compliant Green (RoHS & no Sb/Br) CU SN Level-3-260C-168 HRViewView
DDC114IRTCTG3 RoHS Compliant Green (RoHS & no Sb/Br) CU SN 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 DDC114 Help

Datasheet

Application Notes

User Guides

Solution Guides

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Tools & Software

NamePart # Company Tool / Software Type
DDC11xEVM-PDK Evaluation ModuleDDC11XEVM-PDKTexas InstrumentsDevelopment Boards/EVMs

Part # Name Product Family Comments
DDC232   32 Channel Current-Input 20-bit ADC     32 channel version. Functionally equivalent  
DDC118   Octal Current-Input 20-Bit Analog-to-Digital Converter     Functionally equivalent. 8 channel version  
DDC112   Dual Current Input 20-Bit Analog-To-Digital Converter     Functionally equivalent. 2 channel version  
OPA350   High-Speed, Single-Supply, Rail-to-Rail Operational Amplifiers MicroAmplifier(TM) Series   PRECISION AMPLIFIERS - LOW OFFSET VOLTAGE   OPERATIONAL AMPLIFIER    
REF5040   Low Noise, Very Low Drift, Precision VOLTAGE REFERENCE   REFERENCES - SERIES VOLTAGE REFERENCES   SERIES VOLTAGE REFERENCE    
Customers Who Evaluated This Product Also Evaluated...
DDC112 Dual Current Input 20-Bit Analog-To-Digital Converter   TI customers also evaluated this product.
DDC118 Octal Current-Input 20-Bit Analog-to-Digital Converter   TI customers also evaluated this product.
DDC232 32 Channel Current-Input 20-bit ADC   TI customers also evaluated this product.
DDC316 16 Channel Current-Input 16-bit ADC   TI customers also evaluated this product.
SN74LVC1G14 Single Schmitt-Trigger Inverter LITTLE LOGIC-SINGLE-GATES TI customers also evaluated this product.
OPA552 High-Voltage, High-Current Operational Amplifiers PRECISION AMPLIFIERS-HIGH OUTPUT CURRENT TI customers also evaluated this product.
ADS8507 16-Bit 40KSPS Analog-to-Digital Converter w/Internal Reference and Parallel/Serial Interface DATA CONVERTERS-ANALOG TO DIGITAL CONVERTERS TI customers also evaluated this product.
OPA2111 Dual Low-Noise Difet(R) Operational Amplifier PRECISION AMPLIFIERS-LOW OFFSET VOLTAGE TI customers also evaluated this product.
ADS1211 24-Bit Analog-to-Digital Converter DATA CONVERTERS-ANALOG TO DIGITAL CONVERTERS TI customers also evaluated this product.
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ADS8344 16-Bit, 8-Channel Serial Output Sampling Analog-to-Digital Converter DATA CONVERTERS-ANALOG TO DIGITAL CONVERTERS TI customers also evaluated this product.
LOG102 Logarithmic and Log Ratio Amplifier SPECIAL FUNCTION AMPLIFIERS-LOGARITHMIC AMPLIFIERS TI customers also evaluated this product.
REF5040 Low Noise, Very Low Drift, Precision VOLTAGE REFERENCE REFERENCES-SERIES VOLTAGE REFERENCES TI customers also evaluated this product.
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