TY - GEN
T1 - Design and Performance Analysis of a Digitally Programmable Op-Amp
AU - Zaidi, Muhaned
AU - Grout, Ian
AU - A'Ain, Abu Khari
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/11/19
Y1 - 2018/11/19
N2 - In this paper, the design and simulated response of a digitally programmable operational amplifier (op-amp) is discussed. The purpose of this programming capability is to allow for the op-amp DC gain and frequency response to be controlled. This is attained by programming the transistor tail current in the differential input stage of the op-amp operating at an analog power supply voltage of +3.3 V. Serial peripheral interface (SPI) communications is used here to provide control of the op-amp from an external digital host processor. The design is considered as a particular implementation of digital control of analog circuits. Examples of such digital control strategies of analog circuits are identified to create a context for this work before discussing and analyzing the op-amp design of concern.
AB - In this paper, the design and simulated response of a digitally programmable operational amplifier (op-amp) is discussed. The purpose of this programming capability is to allow for the op-amp DC gain and frequency response to be controlled. This is attained by programming the transistor tail current in the differential input stage of the op-amp operating at an analog power supply voltage of +3.3 V. Serial peripheral interface (SPI) communications is used here to provide control of the op-amp from an external digital host processor. The design is considered as a particular implementation of digital control of analog circuits. Examples of such digital control strategies of analog circuits are identified to create a context for this work before discussing and analyzing the op-amp design of concern.
UR - http://www.scopus.com/inward/record.url?scp=85059742917&partnerID=8YFLogxK
U2 - 10.1109/ICIAS.2018.8540621
DO - 10.1109/ICIAS.2018.8540621
M3 - Conference contribution
AN - SCOPUS:85059742917
T3 - International Conference on Intelligent and Advanced System, ICIAS 2018
BT - International Conference on Intelligent and Advanced System, ICIAS 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th International Conference on Intelligent and Advanced System, ICIAS 2018
Y2 - 13 August 2018 through 14 August 2018
ER -