Xian-zhong Guan

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A design of a SHA merged with MDAC(SMDAC) which can be used in a 14 bit 80Msps pipelined analog-to-digital converter (ADC) is presented in this paper. A two-stage transconductance-controlled op-amp is used in the SMDAC to ensure the requirement of the resolution, speed and stability of the circuit when its feedback factor alternate between 1/2 and 1/4.(More)
Based on Chartered 0.18μ 1.8V 1P5M CMOS process, a gain-boosted telescopic fully differential amplifier with CMFB circuit is designed and used in the sampling and holding circuit of a 14-bit, pipelined A/D converter which is supplied by 1.8 V power. In order to meet specifications, gain-boosting technique is used to improve the gain of OTA and(More)
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