@article{(Open Science Index):https://publications.waset.org/pdf/13355, title = {Design of OTA with Common Drain and Folded Cascade Used in ADC}, author = {Gu Wei and Gao Wei}, country = {}, institution = {}, abstract = {In this report, an OTA which is used in fully differential pipelined ADC was described. Using gain-boost architecture with difference-ended amplifier, this OTA achieve high-gain and high-speed. Besides, the CMFB circuit is also used, and some methods are concerned to improve the performance. Then, by optimization the layout design, OTA-s mismatch was reduced. This design was using TSMC 0.18um CMOS process and simulation both schematic and layout in Cadence. The result of the simulation shows that the OTA has a gain up to 80dB,a unity gain bandwidth of about 1.437GHz for a 2pF load, a slew rate is about 428V/μs, a output swing is 0.2V~1.35V, with the power supply of 1.8V, the power consumption is 88mW. This amplifier was used in a 10bit 150MHz pipelined ADC.}, journal = {International Journal of Electronics and Communication Engineering}, volume = {6}, number = {7}, year = {2012}, pages = {630 - 632}, ee = {https://publications.waset.org/pdf/13355}, url = {https://publications.waset.org/vol/67}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 67, 2012}, }