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A 3-bit ADC for X-band applications that can work at a sampling rate of 11 GS/s is presented in this paper. Current comparators are used to achieve the high sampling rate of 11 GHz at X-band. A 3-bit current-steering DAC is also designed for testing the high-speed ADC. The ADC-DAC RFIC is implemented in a 0.12 mum SiGe technology and occupies a core area of 1.0 x 0.8 mm2. The ADC can operate with...
This paper presents an 80-MHz 12-bit cryogenic low-power digital-to-analog converter (DAC) implemented in a 0.5-mum SiGe BiCMOS technology. The cryogenic DAC is capable of operating over an ultrawide temperature (UWT) ranging from -180degC to +120degC and under the high-energy particle radiation environment on the lunar surface. A bandgap voltage reference for the UWT applications is designed using...
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