ADCs Aim For New Low-Power Marks

Sept. 29, 2004

High performance and extremely low power consumption characterize a new family of analog-to-digital converters (ADCs) from Linear Technology. The LTC2220 family of ADCs totals 24 devices, with currently available 10- and 12-b models working at sampling rates from 10 to 170 MSamples/s. Future models will be available with 14-b resolution at sampling rates to 80 MSamples/s. According to Bob Reay, Vice-President and General Manager of the company's Mixed Signal Business Unit, "We have raised the performance bar by providing our customers with a broad family of ADCs that delivers both outstanding AC performance and low power."

For example, model LTC2222 is a 12-b ADC that provides sampling rates to 105 MSamples/s with only 475 mW power consumption, while model LTC2233 is a 10-b ADC that provides sampling rates to 80 MSamples/s with only 366 mW power consumption. The +3.3-VDC converters, which are supplied in 7-mm-square QFN packages, are ideal for WCDMA cellular base station transceivers, power-amplifier linearization schemes, and cable-modem termination systems.

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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.