Faculty of Electronic Engineering, Niš, Serbia

Faculty of Electronic Engineering, Niš, Serbia

Capgemini LLC Belgrade, Serbia

The paper is available at the following link: PDF

Abstract:

This paper presents one approach of designing the single-ended telescopic operational amplifier targeting the 180nm CMOS process node. The proposed solution is suitable for base- band analogue signal processing applications such as moderate rate analogue-to-digital converters and switch-capacitor loop filters of ∆ ∑ modulators. The design is fully verified for process, voltage and temperature variations.

Keywords:

Analogue IC, Operational amplifiers, CMOS tech- nology, Slew-rate, High-gain.

REFERENCES:

[1] C. A. Lovell and B. W. Parkinson, "Summing amplifier," Patent US2 401 779A, Jun. 11, 1946, filed: 1941-05-27, Issued: 1946-06-11. [Online]. Available: https://patents.google.com/patent/US2401779A/en
[2] R. J. Widlar, "Design techniques for monolithic oper- ational amplifiers," IEEE Journal of Solid-state Cir- cuits, vol. 4, pp. 184–191, 1969. [Online]. Available: https://api.semanticscholar.org/CorpusID:109072198
[3] Y. Tsividis and P. Gray, "An integrated nmos oper- ational amplifier with internal compensation," IEEE Journal of Solid-State Circuits, vol. 11, no. 6, pp. 748– 753, 1976.
[4] V. B. Litovski, "5 operational and transconductance amplifiers," in Lecture Notes in Analog Electron- ics: Discrete and Integrated Large Signal Amplifiers. Springer, 2023, pp. 171–210.
[5] S. Arif, P. Shetty, Ankitha, D. Rai, and Kripa, "A high gain two stage telescopic ota operating at 1.5v power supply in 180nm cmos technology," in 2024 IEEE Con- ference on Engineering Informatics (ICEI), 2024, pp. 1–6.
[6] V. A. Kumar and M. A. Basiri M, "Flexible and high throughput designs of operational amplifiers," in 2024 IEEE International Conference on Interdisciplinary Approaches in Technology and Management for Social Innovation (IATMSI), vol. 2, 2024, pp. 1–6.
[7] K. Gulati and H.-S. Lee, "A high-swing cmos tele- scopic operational amplifier," IEEE Journal of Solid- State Circuits, vol. 33, no. 12, pp. 2010–2019, 1998.
[8] J. S. Siddhanth, S. Kotabagi, M. Ali, S. Kolur, and S. Joshi, "Design and optimisation of a telescopic op- erational amplifier," in 2024 Control Instrumentation System Conference (CISCON), 2024, pp. 1–6.
[9] D. Mirkovic and M. Mirkovic Stanojlovic, "Data- driven design and simulation of two stage cmos opera- tional amplifier," in Small Systems Simulation Sympo- sium, March 2022, pp. 111–116.
[10] D. Stefanovic, M. Kayal, M. Pastre, and V. B. Litovski, "Procedural analog design (pad) tool," in Fourth In- ternational Symposium on Quality Electronic Design, 2003. Proceedings. IEEE, 2003, pp. 313–318.