DDC114 Status: ACTIVE

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

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Datasheet

Quad Current Input, 20-Bit Analog-To-Digital Converter (Rev. C) (PDF 630 KB)
01 Apr 2009

	DDC112	DDC114	DDC118	DDC232	DDC316
Resolution(Bits)	20	20	20	20	16
Sample Rate (max)	3kSPS	3.125kSPS	3.125kSPS	6kSPS	100kSPS
Architecture	Delta-Sigma	Delta-Sigma	Delta-Sigma	Delta-Sigma	SAR
Power Consumption(Typ)(mW)	80	54	108	224	540
No Missing Codes(Bits)	20	20	20	20	16
ENOB(Bits)	20	20	20	20	16
No. of Supplies	1	2	2	2	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 Range	50-1000 pC	12 to 350pC	12.5 to 350pC	12.5 to 350pC	3 to 12pC
Pin/Package	28SOIC, 32TQFP	48QFN	48QFN	64NFBGA	64NFBGA
Comments	Direct connection to photo-diode sensor	Direct connection to photo-diode sensor	Direct 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	2	4	8	32	16
	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory

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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.

View All Description in Datasheet

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools	Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Samples
DDC114IRTCR	ACTIVE	-40 to 85	19.30 \| 1ku	QFN (RTC) \| 48	View	2500 \| LARGE T&R	Purchase Samples
DDC114IRTCRG3	ACTIVE	-40 to 85	19.30 \| 1ku	QFN (RTC) \| 48	View	2500 \| LARGE T&R	Purchase Samples
DDC114IRTCT	ACTIVE	-40 to 85	20.35 \| 1ku	QFN (RTC) \| 48	View	250 \| SMALL T&R
DDC114IRTCTG3	ACTIVE	-40 to 85	20.35 \| 1ku	QFN (RTC) \| 48	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 11:58 AM GMT, 20 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 16 WeeksDDC114IRTCR
None Reported View Distributors
TI Lead Time*: 16 WeeksDDC114IRTCRG3
None Reported View Distributors
TI Lead Time*: 16 WeeksDDC114IRTCT
None Reported View Distributors
TI Lead Time*: 16 WeeksDDC114IRTCTG3
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 Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
DDC114IRTCR	Green (RoHS & no Sb/Br)	CU SN	Level-3-260C-168 HR	View	View
DDC114IRTCRG3	Green (RoHS & no Sb/Br)	CU SN	Level-3-260C-168 HR	View	View
DDC114IRTCT	Green (RoHS & no Sb/Br)	CU SN	Level-3-260C-168 HR	View	View
DDC114IRTCTG3	Green (RoHS & no Sb/Br)	CU SN	Level-3-260C-168 HR	View	View

* 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

Datasheet

Quad Current Input, 20-Bit Analog-To-Digital Converter (Rev. C) (PDF, 630 KB)
01 Apr 2009

Application Notes

Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (HTM, 8 KB) 4552 views
27 Sep 2000 Read Abstract
Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (HTM, 8 KB) 4823 views
27 Sep 2000 Read Abstract

User Guides

DDC11xEVM-PDK User's Guide (PDF, 4948 KB) 1128 views
31 Oct 2007

Solution Guides

Medical Update (PDF, 185 KB) 6655 views
05 May 2006

More Literature

DDC11xEVM Readme Page Thank You Letter (PDF, 23 KB) 211 views
07 Nov 2007

Tools & Software

Name	Part #	Company	Tool / Software Type
DDC11xEVM-PDK Evaluation Module	DDC11XEVM-PDK	Texas Instruments	Development Boards/EVMs

Part #	Name	Product Family	Comments
DDC232	32 Channel Current-Input 20-bit ADC	DATA CONVERTERS - CURRENT INPUT ADC	32 channel version. Functionally equivalent
DDC118	Octal Current-Input 20-Bit Analog-to-Digital Converter	DATA CONVERTERS - CURRENT INPUT ADC	Functionally equivalent. 8 channel version
DDC112	Dual Current Input 20-Bit Analog-To-Digital Converter	DATA CONVERTERS - CURRENT INPUT ADC	Functionally equivalent. 2 channel version
OPA350	High-Speed, Single-Supply, Rail-to-Rail Operational Amplifiers MicroAmplifier(TM) Series	PRECISION AMPLIFIER - LOW OFFSET VOLTAGE	OPERATIONAL AMPLIFIER
REF5040	Low Noise, Very Low Drift, Precision VOLTAGE REFERENCE	VOLTAGE REFERENCE - SERIES VOLTAGE REFERENCE	SERIES VOLTAGE REFERENCE
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DDC114 Status: ACTIVE

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

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