A small area-occupation three-stage OTA with transistor resistance and parasitic capacitance Q-factor modulation for miniaturized communication systems

IF 1.9 3区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Microelectronics Journal Pub Date : 2025-02-01 DOI:10.1016/j.mejo.2024.106501

Yangtao Hu, Siwan Dong, Xiaoliang Ji, Zengwei Qi, Cheng Shan

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引用次数: 0

Abstract

A small area-occupation, three-stage operational transconductance amplifier (OTA) is proposed for miniaturized communication systems. Our work presents a novel RC impedance attenuation solution composed of transistor resistance and parasitic capacitance mainly modulating the Q-factor (TRPCQM) of complex poles and precisely handles the first zero and the second pole to enlarge unity-gain frequency (UGF). By employing source-drain transconductance equivalent resistance and inexpensive parasitic capacitance in our RC impedance attenuation block, the complex poles can be regulated meanwhile decreasing chip area occupation. Under a supply voltage of 1.2V, the proposed design is validated using a standard 0.18 μm CMOS process, occupying an ultra-small area of 0.00276 mm². When driving an ultra-large load of over 20 nF, the design achieves a DC gain exceeding 110 dB and a unity-gain frequency (UGF) of more than 2.1 MHz, with a power consumption of only 10.46 μW.

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来源期刊

Microelectronics Journal 工程技术-工程：电子与电气

CiteScore

4.00

自引率

27.30%

发文量

222

审稿时长

43 days

期刊介绍： Published since 1969, the Microelectronics Journal is an international forum for the dissemination of research and applications of microelectronic systems, circuits, and emerging technologies. Papers published in the Microelectronics Journal have undergone peer review to ensure originality, relevance, and timeliness. The journal thus provides a worldwide, regular, and comprehensive update on microelectronic circuits and systems. The Microelectronics Journal invites papers describing significant research and applications in all of the areas listed below. Comprehensive review/survey papers covering recent developments will also be considered. The Microelectronics Journal covers circuits and systems. This topic includes but is not limited to: Analog, digital, mixed, and RF circuits and related design methodologies; Logic, architectural, and system level synthesis; Testing, design for testability, built-in self-test; Area, power, and thermal analysis and design; Mixed-domain simulation and design; Embedded systems; Non-von Neumann computing and related technologies and circuits; Design and test of high complexity systems integration; SoC, NoC, SIP, and NIP design and test; 3-D integration design and analysis; Emerging device technologies and circuits, such as FinFETs, SETs, spintronics, SFQ, MTJ, etc. Application aspects such as signal and image processing including circuits for cryptography, sensors, and actuators including sensor networks, reliability and quality issues, and economic models are also welcome.