TI Home > Semiconductors > Data Converters > Current Input ADCs >

DDC114 Status: ACTIVE

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

      
         
Alert me about changes<br/>to this product

See Also

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

Datasheet

Download - PDF Icon
  • Quad Current Input 20-Bit Analog-To-Digital Converter (Rev. B) (ddc114.pdf, 643 KB)
    14 Jun 2005 Download

 DDC112 DDC114DDC118 DDC232 
Resolution(Bits)20  20  20  20  
Sample Rate (max)3kSPS  3.125kSPS  3.125kSPS  6kSPS  
ArchitectureDelta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  
Power Consumption(Typ)(mW)80  54  108  320  
No Missing Codes(Bits)20  20  20  20  
ENOB(Bits)20  20  20  20  
No. of Supplies2  2  2  1  
Analog Voltage AV/DD(Min)(V)4.75  4.75  4.75  4.75  
Analog Voltage AV/DD(Max)(V)5.25  5.25  5.25  5.25  
Logic Voltage DV/DD(Min)(V)4.75  2.7  2.7  2.7  
Logic Voltage DV/DD(Max)(V)5.25  5.25  5.25  3.3  
Input Configuration Range50-1000 pC  12 to 350pC  12.5 to 350pC  12.5 to 350pC  
Pin/Package28SOIC,32TQFP  48QFN  48QFN  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  
# Input Channels 4    
 SamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • DDC112: Dual Current Input 20-Bit Analog-To-Digital Converter
  • DDC232: 32 Channel Current-Input 20-bit ADC
  • DDC118: Octal Current-Input 20-Bit Analog-to-Digital Converter

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 8524.10 | 100uQFN (RTC) | 48 View 2500 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
DDC114IRTCRG3ACTIVE-40 to 8524.10 | 100uQFN (RTC) | 48 View 2500 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
DDC114IRTCTACTIVE-40 to 8524.10 | 100uQFN (RTC) | 48 View 250 | SMALL T&R Download CAD Format for this Symbol
DDC114IRTCTG3ACTIVE-40 to 8524.10 | 100uQFN (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 10:02 AM GMT, 04 Dec 2008As of 10:02 AM GMT, 04 Dec 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 12 Mar 14 Weeks None Reported
View Distributors		   
DDC114IRTCRG3As of 10:02 AM GMT, 04 Dec 2008As of 10:02 AM GMT, 04 Dec 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 12 Mar 14 Weeks None Reported
View Distributors		   
DDC114IRTCTAs of 10:02 AM GMT, 04 Dec 2008As of 10:02 AM GMT, 04 Dec 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 12 Mar 12 Weeks AmericasDigiKey 153
  Newark 250
DDC114IRTCTG3As of 10:02 AM GMT, 04 Dec 2008As of 10:02 AM GMT, 04 Dec 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 12 Mar 12 Weeks None Reported
View Distributors		   
View all Distributors  

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** 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

Datasheets

  • Quad Current Input 20-Bit Analog-To-Digital Converter (Rev. B) (ddc114.pdf, 643 KB)
    14 Jun 2005 Download

Application Notes

  • Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (sbaa006.htm, 8 KB)
    27 Sep 2000 Abstract
  • Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (sbaa005.htm, 8 KB)
    27 Sep 2000 Abstract

User Guides

  • DDC11xEVM-PDK User's Guide (slau234.pdf, 4948 KB)
    31 Oct 2007 Download

More Literature

  • DDC11xEVM Readme Page Thank You Letter (slal162.pdf, 23 KB)
    07 Nov 2007 Download
  • Medical Update (slyy014.pdf, 185 KB)
    05 May 2006 Download

Tools & Software

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

 Alternative Products - Are similar to DDC114
Part #NameComments
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 
Customers Who Evaluated This Product Also Evaluated...
DDC112Dual Current Input 20-Bit Analog-To-Digital ConverterTI customers also evaluated this product.
DDC23232 Channel Current-Input 20-bit ADCTI customers also evaluated this product.
DDC118Octal Current-Input 20-Bit Analog-to-Digital ConverterTI customers also evaluated this product.
 Complementary Products - Can be used with DDC114
Part #NameProduct FamilyComments
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  

Related End Equipments

All End-Equipment

Support and Community

Customer Tags Help

No Tags are Available for this Part Number

Other Support