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Design and Simulation of OTA using DTMOS Technique in 180 nm CMOS Process

International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Year of Publication: 2016
Ali Yazdani-Nejad, S. Hossein Pishgar

Ali Yazdani-Nejad and Hossein S Pishgar. Article: Design and Simulation of OTA using DTMOS Technique in 180 nm CMOS Process. International Journal of Computer Applications 139(7):20-22, April 2016. Published by Foundation of Computer Science (FCS), NY, USA. BibTeX

	author = {Ali Yazdani-Nejad and S. Hossein Pishgar},
	title = {Article: Design and Simulation of OTA using DTMOS Technique in 180 nm CMOS Process},
	journal = {International Journal of Computer Applications},
	year = {2016},
	volume = {139},
	number = {7},
	pages = {20-22},
	month = {April},
	note = {Published by Foundation of Computer Science (FCS), NY, USA}


In this paper, a low voltage low power CMOS Operational transconductance amplifier using DTMOS technique is described. The OTA is designed and simulated with 0.18µm CMOS technology. Simulation results show that with DTMOS technique, the open loop gain is 23.05 dB, the unity gain bandwidth is 379.7 KHz, phase margin is 93.8 degree, power consumption is 1.397 µw and input noise is 25.71 nv2/Hz at 1 Hz frequency while operating at 0.6 v supply voltage and under 1 pF capacitor load. DTMOS technique provide low noise compared to conventional OTA. So DTMOS technique is suitable for low noise and low power applications such as biomedical applications.


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DTMOS, OTA, open loop gain, unity gain bandwidth, phase margin.