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DAC2904Y/1K Datasheet

  • DAC2904Y/1K

  • Dual, 14-Bit, 125MSPS DIGITAL-TO-ANALOG CONVERTER

  • 19頁

  • BB

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DAC2904
DAC
290
4
SBAS198B 鈥?NOVEMBER 2003
Dual, 14-Bit, 125MSPS
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q
125MSPS UPDATE RATE
q
SINGLE SUPPLY: +3.3V or +5V
q
HIGH SFDR: 78dB at f
OUT
= 10MHz
q
LOW GLITCH: 2pVs
q
LOW POWER: 310mW
q
INTERNAL REFERENCE
q
POWER-DOWN MODE: 23mW
APPLICATIONS
q
COMMUNICATIONS:
Base Stations, WLL, WLAN
Baseband I/Q Modulation
q
MEDICAL/TEST INSTRUMENTATION
q
ARBITRARY WAVEFORM GENERATORS (ARB)
q
DIRECT DIGITAL SYNTHESIS (DDS)
DESCRIPTION
The DAC2904 is a monolithic, 14-bit, dual-channel,
high-speed Digital-to-Analog Converter (DAC), and is opti-
mized to provide high dynamic performance while dissipating
only 310mW.
Operating with high update rates of up to 125MSPS, the
DAC2904 offers exceptional dynamic performance, and
enables the generation of very-high output frequencies suit-
able for 鈥淒irect IF鈥?applications. The DAC2904 has been
optimized for communications applications in which sepa-
rate 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 con-
figurations.
The DAC2904 combines high dynamic performance with a
high update rate to create a cost-effective solution for a wide
variety of waveform-synthesis applications:
鈥?Pin compatibility between family members provides 10-bit
(DAC2900), 12-bit (DAC2902), and 14-bit (DAC2904)
resolution.
鈥?Pin compatible to the AD9767 dual DAC.
鈥?Gain matching is typically 0.5% of full-scale, and offset
matching is specified at 0.02% max.
鈥?The DAC2904 utilizes an advanced CMOS process; the
segmented architecture minimizes output-glitch energy,
and maximizes the dynamic performance.
鈥?All digital inputs are +3.3V and +5V logic compatible. The
DAC2904 has an internal reference circuit, and allows use
in a multiplying configuration.
鈥?The DAC2904 is available in a TQFP-48 package, and is
specified over the extended industrial temperature range of
鈥?0擄C to +85擄C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright 漏 2002-2003, Texas Instruments
Incorporated
www.ti.com

DAC2904Y/1K 產(chǎn)品屬性

  • Texas Instruments

  • DAC（數(shù)/模轉(zhuǎn)換器）

  • 2

  • 2

  • 125 MSPs

  • 14 bit

  • Parallel

  • 0.03 us

  • + 85 C

  • SMD/SMT

  • TQFP-48

  • Reel

  • - 40 C

  • Current

  • 1000

  • 5.5 V

  • 3 V

  • Internal or External

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