A 93.36 dB, 161 MHz CMOS operational transconductance amplifier (OTA) for a 16 bit pipeline analog-to-digital converter (ADC) / Nordiana Mukahar and Siti Hawa Ruslan

• Main Authors: Mukahar, Nordiana (Author), Ruslan, Siti Hawa (Author)
• Format: Book
• Published: IEEE, 2012-02.
• Subjects: Article; PeerReviewed
• Online Access: Link Metadata
• Notes: https://ir.uitm.edu.my/id/eprint/67053/1/67053.pdf; A 93.36 dB, 161 MHz CMOS operational transconductance amplifier (OTA) for a 16 bit pipeline analog-to-digital converter (ADC) / Nordiana Mukahar and Siti Hawa Ruslan. (2012) International Journal of Electrical and Computer Engineering (IJECE) <https://ir.uitm.edu.my/view/publication/International_Journal_of_Electrical_and_Computer_Engineering_=28IJECE=29/>, 2 (1). pp. 106-111. ISSN 2088-8708
• Keywords: Electric apparatus and materials. Electric circuits. Electric networks; Electronics

A gain modified CMOS Operational Transconductance Amplifier (OTA) for a 16 bit pipeline Analog-to-Digital Converter (ADC) is presented. The circuit is designed to be used for a high resolution and low sampling rate ADC. Gain boosting technique is implemented in the design to achieve high DC gain and settling time as required. Post layout simulations for a 5 pF load capacitance shows that OTA achieves a gain bandwidth of 161 MHz at a phase margin 93.14o with 93.27 dB DC gain. The settling time for an OTA is 163 ns for 0.1 % accuracy to achieve final value and consume power about 4.88 mW from 5 V power supply.