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A fully differential 144GHz CMOS amplifier has been demonstrated in 65nm CMOS. It validates a maximum 20dB power gain and has positive gain over 38GHz frequency range from 126GHz to 164GHz. With stacking circuit architecture, the amplifier can tolerate up to 2V supply without reliability concern. It also delivers over 5.7dBm saturated output power with PldB of 5dBm under a 2V supply. The amplifier...
Comparator based switched capacitor technique is a new topic because of its suitability of scaling and its inherent low power consumption. Since CBSC technique suffers from the overshoot due to the comparator delay, this paper gives a detailed analysis on the overshoot signal, and a common mode feedforward circuit is proposed to correct the overshoot error. A 10-bit 100 MS/s pseudo differential pipelined...
This paper describes a comparative analysis between two topologies of operational amplifiers to design a 40 MS/s 12-bit pipeline analog to digital converter (ADC). The analysis includes AC and transient simulation to select the proper topology. This ADC is implemented in a 0.35 mum AMS CMOS technology with 3.3 V single power supply. The capacitors and selected operational amplifiers were scaled for...
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