The ALMA 3 - bit 4 Gsample / s , 2 - 4 GHz Input Bandwidth , Flash Analog - to - Digital Converter
نویسندگان
چکیده
Abstract: A high speed low power analog-to-digital converter (ADC) using the 0.25μm BiCMOS SiGe technology from ST Microelectronics has been developed to meet the specifications of the ALMA project. The main features of this ADC are: 3-bit resolution (8 quantization levels) in Gray code, an input bandwidth from 2 to 4 GHz, 4 GHz sampling rate (and possible operation up to 5 GHz), LVDS standard I/Os and low power dissipation (∼ 1.4 W). We present in this paper some details of our ADC design and performance results obtained with the ALMA digitizer assembly including one ADC followed by three high speed 1:16 deserializers. ALMA production acceptance tests are briefly described.
منابع مشابه
ALMA Memo No . 426 4 - GSample / s , 2 - bit SiGe Digitizers for the ALMA Project . Paper II
Abstract We report on the design details and first dynamic tests of high speed analog-to-digital converters (ADCs) with characteristics approaching those desired for the ALMA project. A conventional flash ADC architecture has been adopted with monolithic ADCs implemented in BiCMOS 0.35 μm and 0.25 μm SiGe (Silicon-Germanium) processes. We concentrate here on our 2-bit, 0.35 μm designs and test ...
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