Omar Abdelfattah

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This thesis tackles the problem of data conversion in the Residue Number System (RNS). The RNS has been considered as an interesting theoretical topic for researchers in recent years. Its importance stems from the absence of carry propagation between its arithmetic units. This facilitates the realization of high-speed, low-power arithmetic. This advantage(More)
An operational-transconductance-amplifier (OTA) design for ultra-low voltage ultra-low power applications is proposed. The input stage of the proposed OTA utilizes a bulk-driven pseudo-differential pair to allow minimum supply voltage while achieving a rail-to-rail input range. All the transistors in the proposed OTA operate in the subthreshold region.(More)
This paper presents the main challenges in the design of wide tuning range LC voltage controlled oscillators (LC-VCOs) in CMOS technologies. Design trade-offs such as tank losses, phase noise, and power consumption are discussed and analyzed. A VCO that has a wide tuning range that covers frequencies from 5.5 GHz to 10.2 GHz was designed and fabricated in a(More)
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