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DAC2904

更新时间： 2024-01-04 10:01:42
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
26页 835K
描述
Dual, 14-Bit, 125MSPS DIGITAL-TO-ANALOG CONVERTER

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DAC2904 数据手册

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DAC2904  
www.ti.com.............................................................................................................................................. SBAS198C –AUGUST 2001–REVISED OCTOBER 2009  
Dual, 14-Bit, 125MSPS  
DIGITAL-TO-ANALOG CONVERTER  
Check for Samples: DAC2904  
1
FEATURES  
APPLICATIONS  
•
COMMUNICATIONS:  
2
•
125MSPS UPDATE RATE  
SINGLE SUPPLY: +3.3V or +5V  
HIGH SFDR: 78dB at fOUT = 10MHz  
LOW GLITCH: 2pV-s  
–
–
Base Stations, WLL, WLAN  
Baseband I/Q Modulation  
•
•
•
•
•
•
•
•
MEDICAL/TEST INSTRUMENTATION  
ARBITRARY WAVEFORM GENERATORS  
(ARB)  
DIRECT DIGITAL SYNTHESIS (DDS)  
space  
space  
LOW POWER: 310mW  
INTERNAL REFERENCE  
•
POWER-DOWN MODE: 23mW  
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:  
DESCRIPTION  
The DAC2904 is a monolithic, 14-bit, dual-channel,  
high-speed Digital-to-Analog Converter (DAC), and is  
optimized to provide high dynamic performance while  
dissipating only 310mW.  
•
Pin compatibility between family members  
provides 10-bit (DAC2900), 12-bit (DAC2902),  
and 14-bit (DAC2904) resolution.  
Operating with high update rates of up to 125MSPS,  
•
•
Pin compatible to the AD9767 dual DAC.  
Gain matching is typically 0.5% of full-scale, and  
offset matching is specified at 0.02% max.  
the  
DAC2904  
offers  
exceptional  
dynamic  
performance, and enables the generation of very-high  
output frequencies suitable for “Direct IF”  
applications. The DAC2904 has been optimized for  
communications applications in which separate I and  
Q data are processed while maintaining tight-gain  
and offset matching.  
•
The DAC2904 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 DAC2904 has an internal  
reference circuit, and allows use in a multiplying  
configuration.  
•
Each DAC has a high-impedance differential-current  
output, suitable for single-ended or differential  
analog-output configurations.  
The DAC2904 is available in a TQFP-48 package,  
and is specified over the extended industrial  
temperature range of –40°C to +85°C.  
1
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.  
2
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2001–2009, Texas Instruments Incorporated  
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