A Gain and Slew Rate Enhanced Recycling Folded Cascode Operational Amplifier
An improved folded cascode operational amplifier with current-recycling architecture has been proposed. This operational amplifier employs a current-multiplying architecture, with an added output stage to enhance gain. Additionally, a dynamic control unit has been integrated to improve the circuit’s slew rate. Designed and validated using a $0.18 \mu \mathrm{~m}$ CMOS process, simulation results indicate that the low-frequency gain of the proposed amplifier is 93.12 dB, with a gain-bandwidth product (GBW) of 2.6 MHz and an average slew rate of $26.97 \mathrm{MV} / \mathrm{s}$. Compared to the traditional structure, the gain has been increased by a factor of 9, and the slew rate has been enhanced by a factor of 21.
Authors
- Jiangping He (ORCID: https://orcid.org/0000-0002-7212-4606)
- Xiao Yang (ORCID: https://orcid.org/0000-0001-7968-7260)
- Huailin Liao (ORCID: https://orcid.org/0000-0003-3221-8146)
- Yongqiang Chen (ORCID: https://orcid.org/0000-0003-3211-5550)
Institutions
- Xihua University (CN)
Publication Details
- Published
- 2024-12-20
- DOI
- https://doi.org/10.1109/aiim64537.2024.10934431
- Primary Topic
- Semiconductor Quantum Structures and Devices
- Type
- article
- Field-Weighted Citation Impact
- 0.00