We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
A High Performance 0.3 V Standard-Cell-Based OTA Suitable for Automatic Layout Flow.
- Authors
Della Sala, Riccardo; Centurelli, Francesco; Scotti, Giuseppe
- Abstract
In this paper, we propose a novel standard-cell-based OTA architecture based on an improved version of the differential to single-ended converter, previously proposed by the authors, on a novel standard-cell-based basic voltage amplifier block. Due to a replica-bias approach, the basic voltage amplifier exhibits a well-defined output static voltage to allow easy cascadability. Another feature of the basic voltage amplifier is to provide a low output impedance to allow dominant pole compensation at the output of the cascade of several stages. An ultra-low voltage (ULV) standard-cell-based OTA based on the proposed architecture and building blocks has been designed referring to the standard-cell library of a 130-nm CMOS process with a supply voltage of 0.3 V. The layout of the OTA has been implemented by following an automatic layout flow within a commercial tool for the place-and-route of digital circuits. Simulation results have shown a differential gain of 50 dB with a gain–bandwidth product of 10 MHz when driving a 150 pF load capacitance. Good robustness is achieved under PVT variations, in particular for voltage gain, offset voltage, and phase margin. State-of-the-art small signal figures of merit and limited area footprint are key characteristics of the proposed amplifier.
- Subjects
COMPLEMENTARY metal oxide semiconductors; ELECTRIC capacity; VOLTAGE; DIFFERENTIAL amplifiers
- Publication
Applied Sciences (2076-3417), 2023, Vol 13, Issue 9, p5517
- ISSN
2076-3417
- Publication type
Article
- DOI
10.3390/app13095517