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Quad IF DAC Races To 2.8 GSamples/s

June 2, 2014
A four-channel IF DAC is well suited for generating the clean multiple signals needed for modern communications systems.

Data converters are versatile signal-process components and will be among the most sought-after items on the 2014 IMS Exhibition floor. Recognizing this interest, Analog Devices is introducing at Booth No. 415 what the firm claims is the industry’s fastest quad intermediate-frequency (IF) digital-to-analog converter (DAC), the model AD9144. This four-channel, 16-b data converter operates at rates to 2.8 GSamples/s making it ideal for a host of wireless and wired communications applications. The DAC achieves a spurious-free dynamic range (SFDR) of -82 dBc with noise spectral density of -164 dBm/Hz. This level of performance supports low-noise synthesis of wideband signals for many different communications systems. For example, for Global System for Mobile Communications (GSM) cellular communications systems, the AD9144 can generate a six-carrier IF bandwidth of 75 MHz with -77 dBc adjacent-channel leakage ratio (ACLR). The DAC is available in a 12 × 12 mm 88-lead lead-frame, chip-scale package (LFCSP) housing.

About the Author

Jack Browne | Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.

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