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In this paper, the effects that limit the performance of practical implementations of RC relaxation oscillators are investigated. The insights gained are used to suggest a topology for high-frequency quadrature relaxation oscillators with closer-to-optimal performance. The proposed oscillator uses a modified latch to improve the switching speed without increasing the power consumption. Moreover, the...
In this paper we present a MOSFET-only implementation of a wideband Gilbert Cell. The circuit uses a common-gate topology for a wideband input match, capable to cover the WMTS frequency bands of 600 MHz and 1.4 GHz. In this circuit the load resistors are replaced by transistors in triode mode, to reduce area and cost, and minimize the effects of process and supply variations and mismatches. In addition...
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