DDC112 Status: ACTIVE

Dual Current Input 20-Bit Analog-To-Digital Converter

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Datasheet

DDC112: Dual Current Input 20-Bit Analog-To-Digital Converter (Rev. B) (PDF 757 KB)
06 Oct 2004

	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

Customers Who Evaluated This Product Also Evaluated

DDC114: DDC114: Quad Current Input 20-Bit Analog-To-Digital Converter
DDC316: 16 Channel Current-Input 16-bit ADC
DDC232: 32 Channel Current-Input 20-bit ADC
IVC102: Precision Switched Integrator Transimpedance Amplifier
OPA350: High-Speed, Single-Supply, Rail-to-Rail Operational Amplifiers MicroAmplifier(TM) Series

Product Information

Features

MONOLITHIC CHARGE MEASUREMENT ADC
DIGITAL FILTER NOISE REDUCTION:
3.2ppm, rms
INTEGRAL LINEARITY:
±0.005% Reading ±0.5ppm FSR
HIGH PRECISION,TRUE INTEGRATING FUNCTION
PROGRAMMABLE FULL SCALE
SINGLE SUPPLY
CASCADABLE OUTPUT
APPLICATIONS
- DIRECT PHOTOSENSOR DIGITIZATION
- CT SCANNER DAS
- INFRARED PYROMETER
- PRECISION PROCESS CONTROL
- LIQUID/GAS CHROMATOGRAPHY
- BLOOD ANALYSIS

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

Description

The DDC112 is a dual input, wide dynamic range, charge-digitizing analog-to-digital (A/D) converter with 20-bit resolution. Low-level current output devices, such as photosensors, can be directly connected to its inputs. Charge integration is continuous as each input uses two integrators; while one is being digitized, the other is integrating.

For each of its two inputs, the DDC112 combines current-to-voltage conversion, continuous integration, programmable full-scale range, A/D conversion, and digital filtering to achieve a precision, wide dynamic range digital result. In addition to the internal programmable full-scale ranges, external integrating capacitors allow an additional user-settable full-scale range of up to 1000pC.

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	Footprints	Samples
DDC112U	ACTIVE	-40 to 85	14.05 \| 1ku	SOIC (DW) \| 28	View	20 \| TUBE
DDC112U/1K	ACTIVE	-40 to 85	12.95 \| 1ku	SOIC (DW) \| 28	View	1000 \| LARGE T&R	Purchase Samples
DDC112U/1KG4	ACTIVE	-40 to 85	12.95 \| 1ku	SOIC (DW) \| 28	View	1000 \| LARGE T&R	Purchase Samples
DDC112UG4	ACTIVE	-40 to 85	14.05 \| 1ku	SOIC (DW) \| 28	View	20 \| TUBE	Contact TI Distributor or Sales Office
DDC112UK	ACTIVE	0 to 70	17.80 \| 1ku	SOIC (DW) \| 28	View	20 \| TUBE
DDC112UK/1K	ACTIVE	0 to 70	16.70 \| 1ku	SOIC (DW) \| 28	View	1000 \| LARGE T&R	Purchase Samples
DDC112UK/1KG4	ACTIVE	0 to 70	16.70 \| 1ku	SOIC (DW) \| 28	View	1000 \| LARGE T&R	Purchase Samples
DDC112UKG4	ACTIVE	0 to 70	17.80 \| 1ku	SOIC (DW) \| 28	View	20 \| TUBE	Contact TI Distributor or Sales Office
DDC112Y/250	ACTIVE	-40 to 85	16.20 \| 1ku	TQFP (PJT) \| 32	View	250 \| SMALL T&R
DDC112Y/250G4	ACTIVE	-40 to 85	16.20 \| 1ku	TQFP (PJT) \| 32	View	250 \| SMALL T&R	Contact TI Distributor or Sales Office
DDC112Y/2K	ACTIVE	-40 to 85	15.20 \| 1ku	TQFP (PJT) \| 32	View	2000 \| LARGE T&R	Purchase Samples
DDC112Y/2KG4	ACTIVE	-40 to 85	15.20 \| 1ku	TQFP (PJT) \| 32	View	2000 \| LARGE T&R	Purchase Samples
DDC112YK/250	ACTIVE	0 to 70	20.25 \| 1ku	TQFP (PJT) \| 32	View	250 \| SMALL T&R	Purchase Samples
DDC112YK/250G4	ACTIVE	0 to 70	20.25 \| 1ku	TQFP (PJT) \| 32	View	250 \| SMALL T&R	Purchase Samples
DDC112YK/2K	ACTIVE	0 to 70	19.25 \| 1ku	TQFP (PJT) \| 32	View	2000 \| LARGE T&R	Purchase Samples
DDC112YK/2KG4	ACTIVE	0 to 70	19.25 \| 1ku	TQFP (PJT) \| 32	View	2000 \| LARGE T&R	Purchase Samples

* 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 11:57 AM GMT, 22 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksDDC112U
Americas	Rochester Electronics	9
Asia	WPI	144
Europe	Abacus Polar	190
Europe	Compel	177
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	5
TI Lead Time*: 20 WeeksDDC112U/1K
Americas	Rochester Electronics	1k
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksDDC112U/1KG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksDDC112UG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksDDC112UK
Americas	Avnet	15
Americas	Rochester Electronics	>1k
Asia	Farnell Asia	6
Asia	WPI	79
Europe	Farnell	6
Worldwide	DigiKey	150
Worldwide	Mouser Electronics	19
TI Lead Time*: 20 WeeksDDC112UK/1K
Americas	Rochester Electronics	700
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksDDC112UK/1KG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksDDC112UKG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksDDC112Y/250
None Reported View Distributors
TI Lead Time*: 20 WeeksDDC112Y/250G4
None Reported View Distributors
TI Lead Time*: 20 WeeksDDC112Y/2K
None Reported View Distributors
TI Lead Time*: 20 WeeksDDC112Y/2KG4
None Reported View Distributors
TI Lead Time*: 20 WeeksDDC112YK/250
Americas	Rochester Electronics	>1k
Europe	Abacus Polar	250
Europe	Avnet-SILICA	185
TI Lead Time*: 20 WeeksDDC112YK/250G4
None Reported View Distributors
TI Lead Time*: 20 WeeksDDC112YK/2K
None Reported View Distributors
TI Lead Time*: 20 WeeksDDC112YK/2KG4
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
DDC112U	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
DDC112U/1K	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
DDC112U/1KG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
DDC112UG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
DDC112UK	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
DDC112UK/1K	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
DDC112UK/1KG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
DDC112UKG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
DDC112Y/250	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
DDC112Y/250G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
DDC112Y/2K	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
DDC112Y/2KG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
DDC112YK/250	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
DDC112YK/250G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
DDC112YK/2K	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
DDC112YK/2KG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	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 DDC112

Datasheet

DDC112: Dual Current Input 20-Bit Analog-To-Digital Converter (Rev. B) (PDF, 757 KB)
06 Oct 2004

Application Notes

Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (HTM, 8 KB) 4559 views
27 Sep 2000 Read Abstract
Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (HTM, 8 KB) 4840 views
27 Sep 2000 Read Abstract
Understanding The DDC112\'S Continuous and Non-Continuous Modes (HTM, 8 KB) 416 views
27 Sep 2000 Read Abstract
Using External Integration Capacitors on the DDC112 (HTM, 8 KB) 515 views
27 Sep 2000 Read Abstract
Retrieving Data from the DDC112 (HTM, 8 KB) 538 views
27 Sep 2000 Read Abstract
The DDC112\'s Test Mode (HTM, 8 KB) 340 views
27 Sep 2000 Read Abstract
Multi-DDC112 DUT Board for the DDC112 Evaluation Fixture (HTM, 8 KB) 470 views
27 Sep 2000 Read Abstract
Creating a Bipolar Input Range for the DDC112 (HTM, 8 KB) 578 views
27 Sep 2000 Read Abstract

User Guides

DEM-DDC112U-C: Demonstration Fixture for the DDC112 (PDF, 409 KB) 884 views
27 Sep 2000
DDC11xEVM-PDK User's Guide (PDF, 4948 KB) 1132 views
31 Oct 2007

Solution Guides

Medical Update (PDF, 185 KB) 6671 views
05 May 2006

More Literature

DDC11xEVM Readme Page Thank You Letter (PDF, 23 KB) 212 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	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 32 channel device
DDC118	Octal Current-Input 20-Bit Analog-to-Digital Converter	DATA CONVERTERS - CURRENT INPUT ADC	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 8 channel device
DDC114	DDC114: Quad Current Input 20-Bit Analog-To-Digital Converter	DATA CONVERTERS - CURRENT INPUT ADC	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 4 channel device
DDC101	20-Bit Analog-to-Digital Converter	DATA CONVERTERS - CURRENT INPUT ADC	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. Single channel device with higher sampling rate
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
Customers Who Evaluated This Product Also Evaluated...
DDC114	DDC114: Quad Current Input 20-Bit Analog-To-Digital Converter	DATA CONVERTERS-CURRENT INPUT ADC	TI customers also evaluated this product.
DDC316	16 Channel Current-Input 16-bit ADC	DATA CONVERTERS-CURRENT INPUT ADC	TI customers also evaluated this product.
DDC232	32 Channel Current-Input 20-bit ADC	DATA CONVERTERS-CURRENT INPUT ADC	TI customers also evaluated this product.
IVC102	Precision Switched Integrator Transimpedance Amplifier	PRECISION AMPLIFIER-LOW INPUT BIAS CURRENT/FET INPUT	TI customers also evaluated this product.
OPA350	High-Speed, Single-Supply, Rail-to-Rail Operational Amplifiers MicroAmplifier(TM) Series	PRECISION AMPLIFIER-LOW OFFSET VOLTAGE	TI customers also evaluated this product.

All End-Equipment

DDC112 Status: ACTIVE

Dual Current Input 20-Bit Analog-To-Digital Converter

See Also

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Datasheet

Customers Who Evaluated This Product Also Evaluated