DAC2902 Status: ACTIVE

Dual, 12-Bit, 125Msps Digital-to-Analog Converter

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Datasheet

Dual, 12-Bit, 125MSPS Digital-to-Analog Converter (Rev. C) (dac2902.pdf, 624 KB)
19 Sep 2008 Download

	DAC2902
Resolution(Bits)	12
DAC: Channels	2
Settling Time(µs)	0.03
Sample / Update Rate(MSPS)	125
Interface	Parallel
Output Type	Current
Current Range(mA)	2 to 20
DNL(Max)(+/-LSB)	2.5
INL(Max)(+/-LSB)	3
SNR(Typ)(dB)	68
SFDR(Typ)(dB)	81
Power Consumption(Typ)(mW)	310
Architecture	I-steering
Reference: Type	Int/Ext
Analog Voltage AV/DD(Min)(V)	3
Analog Voltage AV/DD(Max)(V)	5.5
Logic Voltage DV/DD(Min)(V)	3
Logic Voltage DV/DD(Max)(V)	5.5
Rating	Catalog
Pin/Package	48TQFP
Approx. Price (US$)	13.30 \| 1ku
	Samples
	Inventory

Product Information

Features

125MSPS UPDATE RATE
SINGLE SUPPLY: +3.3V or +5V
HIGH SFDR: 70dB at f_OUT = 20MHz
LOW GLITCH: 2pVs
LOW POWER: 310mW
INTERNAL REFERENCE
POWER-DOWN MODE: 23mW
APPLICATIONS
- COMMUNICATIONS:
  Base Stations, WLL, WLAN
  Baseband I/Q Modulation
- MEDICAL/TEST INSTRUMENTATION
- ARBITRARY WAVEFORM GENERATORS (ARB)
- DIRECT DIGITAL SYNTHESIS (DDS)

Description

The DAC2902 is a monolithic, 12-bit, dual-channel, high-speed Digital-to-Analog Converter (DAC), and is optimized to provide high dynamic performance while dissipating only 310mW.

Operating with high update rates of up to 125MSPS, the DAC2902 offers exceptional dynamic performance, and enables the generation of very-high output frequencies suitable for "Direct IF" applications. The DAC2902 has been optimized for communications applications in which separate I and Q data are processed while maintaining tight gain and offset matching.

Each DAC has a high-impedance differential-current output, suitable for single-ended or differential analog-output configurations.

The DAC2902 combines high dynamic performance with a high throughput rate to create a cost-effective solution for a wide variety of waveform-synthesis applications:

Pin compatibility between family members provides 10-bit (DAC2900), 12-bit (DAC2902), and 14-bit (DAC2904) resolution.
Pin compatible to the AD9765 dual DAC.
Gain matching is typically 0.5% of full-scale, and offset matching is specified at 0.02% max.
The DAC2902 utilizes an advanced CMOS process; the segmented architecture minimizes output-glitch energy, and maximizes the dynamic performance.
All digital inputs are +3.3V and +5V logic compatible. The DAC2902 has an internal reference circuit, and allows use of an external reference.
The DAC2902 is available in a TQFP-48 package, and is specified over the extended industrial temperature range of –40°C to +85°C.

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
DAC2902Y/1K	ACTIVE	-40 to 85	13.30 \| 1ku	TQFP (PFB) \| 48	View	1000 \| LARGE T&R	Purchase Samples
DAC2902Y/1KG4	ACTIVE	-40 to 85	13.30 \| 1ku	TQFP (PFB) \| 48	View	1000 \| LARGE T&R	Purchase Samples
DAC2902Y/250	ACTIVE	-40 to 85	14.65 \| 1ku	TQFP (PFB) \| 48	View	250 \| SMALL T&R	Contact TI Distributor or Sales Office
DAC2902Y/250G4	ACTIVE	-40 to 85	14.65 \| 1ku	TQFP (PFB) \| 48	View	250 \| SMALL T&R	Contact TI Distributor or Sales Office

* 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
DAC2902Y/1K	As of 10:04 AM GMT, 04 Dec 2008			As of 10:04 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	3460*	1023 \| 15 Jan	14 Weeks	None Reported View Distributors
	3460*	>10k \| 5 Mar	14 Weeks
DAC2902Y/1KG4	As of 10:04 AM GMT, 04 Dec 2008			As of 10:04 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	3460*	1023 \| 15 Jan	14 Weeks	None Reported View Distributors
	3460*	>10k \| 5 Mar	14 Weeks
DAC2902Y/250	As of 10:04 AM GMT, 04 Dec 2008			As of 10:04 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	427 \| 9 Jan	6 Weeks	Americas	Arrow	250
		4233 \| 15 Jan			DigiKey	287
		>10k \| 5 Mar			Rochester Electronics	838
DAC2902Y/250G4	As of 10:04 AM GMT, 04 Dec 2008			As of 10:04 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	427 \| 9 Jan	6 Weeks	Americas	Avnet	250
		4233 \| 15 Jan		Americas	Rochester Electronics	>1k
		>10k \| 5 Mar
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 Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
DAC2902Y/1K	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
DAC2902Y/1KG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
DAC2902Y/250	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
DAC2902Y/250G4	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

Datasheets

Dual, 12-Bit, 125MSPS Digital-to-Analog Converter (Rev. C) (dac2902.pdf, 624 KB)
19 Sep 2008 Download

Application Notes

Wideband Complementary Current Output DAC Single-Ended Interface (sbaa135.htm, 9 KB)
21 Jun 2005 Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (szza046.htm, 8 KB)
24 May 2004 Abstract
Thermal and Electrical Properties of Selected Packaging Materials (sbfa010.htm, 8 KB)
04 Oct 2000 Abstract
Superposition: The Hidden DAC Linearity Error (sbaa047.htm, 8 KB)
02 Oct 2000 Abstract
What Designers Should Know About Data Converter Drift (sbaa046.htm, 8 KB)
02 Oct 2000 Abstract
High Speed Data Conversion (sbaa045.htm, 8 KB)
02 Oct 2000 Abstract

View Application Notes for Digital to Analog Converters

User Guides

DAC290x-EVM: Demo Board (Rev. B) (sbau071b.pdf, 694 KB)
20 Sep 2005 Download

View User Guides for Digital to Analog Converters

More Literature

View More Literature for Digital to Analog Converters

Tools & Software

Name	Part #	Company	Tool / Software Type
Wideband Comp Current Output DAC to SE Interface: Impr Matching for Gain & Compliance Volt Swing	MATCHGAIN-CALC	Texas Instruments	Calculation Utilities
DAC2902 Evaluation Module	DAC2902-EVM	Texas Instruments	Development Boards/EVMs

Alternative Products - Are similar to DAC2902
Part #	Name	Comments
DAC5662	12 bit 275 MSPS Dual Digital to Analog Converter	The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent. the alternative has better dynamic performance and higher sample rate

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DAC2902 Status: ACTIVE

Dual, 12-Bit, 125Msps Digital-to-Analog Converter

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