Search Results - "Operational amplifiers"

A Robust Current-Feedback Operational Amplifier-Based Front-End Amplifier for Electrocardiogram Signal Noise Removal.

Authors: Sitjongsataporn, Suchada Pookaiyaudom, Panavy Sakunpongpitiporn, Phimchanok et al.

Source: Sensors (14248220). Jun2026, Vol. 26 Issue 12, p3665. 17p.

A 50 pA-Input-Bias-Current 134 dB-Open-Loop-Gain Operational Amplifier with a New CMFB and Base Current Compensation Circuit.

Authors: Hong, Ting Li, Wenchang Liu, Jian et al.

Source: Progress in Electromagnetics Research C. 2026, Vol. 166, p169-175. 7p.

Subjects: Operational amplifiers, Electronic feedback, Electronic amplifiers, Electric currents, Bipolar integrated circuits

Design and Fabrication of a Low-Voltage OPAMP Based on a-IGZO Thin-Film Transistors.

Authors: Torres-Sánchez, Arturo Hernandez-Luna, Isai S. Hernández-Cuevas, Francisco J. et al.

Source: Nanomaterials (2079-4991). Jan2026, Vol. 16 Issue 2, p84. 11p.

Subjects: Thin film transistors, Operational amplifiers, Analog circuits, Fabrication (Manufacturing), Analog electronic systems, Charge carrier mobility

A Multiplexable Op-Amp Interface for Accurate Readout of Remote Resistive Sensors.

Authors: Kuankid, Sanya Jittakort, Jirapong Aurasopon, Apinan

Source: Sensors (14248220). Jan2026, Vol. 26 Issue 2, p461. 14p.

Design and Experimental Validation of the Versatile Voltage Conveyor‐Based Novel Mixed‐Mode Universal Filter Configurations and Quadrature Oscillator.

Authors: Faseehuddin, Mohammad Shireen, Sadia Channumsin, Orapin et al.

Source: Journal of Electrical & Computer Engineering. 8/1/2025, Vol. 2025, p1-26. 26p.

Subjects: Complementary metal oxide semiconductors, Operational amplifiers, Passive components, Integrated circuits, Signal processing

Fractal Calculus Analysis of a Non-ideal Operational Amplifier Bandpass Filter.

Authors: Banchuin, Rawid Golmankhaneh, Alireza Khalili

Source: Circuits, Systems & Signal Processing. Jul2026, Vol. 45 Issue 7, p5140-5162. 23p.

Subjects: Operational amplifiers, Bandpass filters, Fractal analysis, Frequency-domain analysis, Analog circuits, Transfer functions, Power law (Mathematics), Imperfection

Electronically tunable CCCII and OTA-based fractional-order meminductor emulator and its application.

Authors: AGGARWAL, Bhawna DAS, Rupam RAI, Shireesh Kumar

Source: Turkish Journal of Electrical Engineering & Computer Sciences; 2025, Vol. 33 Issue 5, p531-555, 25p

A 55 V, 6.6 nV/√Hz Chopper Operational Amplifier with Dual Auto-Zero and Common-Mode Voltage Tracking.

Authors: Chen, Zhifeng Zhang, Yuyan Yang, Yaguang et al.

Source: Eng (2673-4117). Aug2025, Vol. 6 Issue 8, p192. 12p.

Gain Enhanced Miller Compensated Operational Amplifier.

Authors: Duhan, Komal Prakash, Dr. Neelam Rup Kaur, Dr. Jasbir et al.

Source: Semiconductors. Jul2025, Vol. 59 Issue 7, p701-710. 10p.

Subjects: Operational amplifiers, Field-effect transistors, Voltage references, Alternating currents, Metal oxide semiconductor field-effect transistors

Degradation modeling and remaining useful life prediction method for operational amplifiers using the GA-optimized SVR.

Authors: Huang, Xin Zeng, Ying Li, Jing et al.

Source: Journal of Mechanical Science & Technology. Jul2025, Vol. 39 Issue 7, p3599-3607. 9p.

Subjects: Remaining useful life, Operational amplifiers, Radial basis functions, Heuristic algorithms, Artificial intelligence

Filter Design Based on Multi-port and Multi-dimensional gC Circuits.

Authors: Handkiewicz, Andrzej Krzywoszyja, Grzegorz Zajac, Wojciech et al.

Source: Circuits, Systems & Signal Processing. Jul2025, Vol. 44 Issue 7, p4511-4536. 26p.

Subjects: Video processing, Operational amplifiers, Impulse response, Artificial intelligence, Complex variables

Power Supply Noise Aware Amplification in Voltage-Controlled Oscillator and Phase Locked Loop fed MOS Operational Amplifiers.

Authors: Karthik, G. V. Teja Ruthvik, Gogineni Srikanth Reddy, Meeniga et al.

Source: Journal of Circuits, Systems & Computers. 10/1/2026, Vol. 35 Issue 17, p1-26. 26p.

Subjects: Phase-locked loops, Operational amplifiers, Voltage-controlled oscillators, Electric noise, Signal filtering, Phase noise

Four Current Path PRFC OTA with Cross-Coupled Positive Feedback with Improved Gain and PSRR for Analog Signal Processing.

Authors: Singh, Rahul Wairya, Subodh

Source: Journal of Circuits, Systems & Computers. 8/30/2026, Vol. 35 Issue 14, p1-41. 41p.

Subjects: Operational amplifiers, Analog circuits, Complementary metal oxide semiconductors, Frequency response

A 4.7 nV/√Hz Multipath Chopper High-Voltage Operational Amplifier with Auto-correction Feedback.

Authors: Li, Peipei Luo, Li

Source: Circuits, Systems & Signal Processing. Mar2026, Vol. 45 Issue 3, p1567-1586. 20p.

Subjects: Operational amplifiers, Noise, Signal processing

An optimal second-order approximation of the time-delay element and its circuit realization.

Authors: Elwakil, A. S. Maundy, B. J.

Source: Circuits, Systems & Signal Processing. Feb2026, Vol. 45 Issue 2, p1544-1554. 11p.

Subjects: Operational amplifiers, Current conveyors, Circuit elements, Approximation error, Electronic equipment, Electronic circuit design

A Programmable Gain Calibration Method to Mitigate Skin Tone Bias in PPG Sensors.

Authors: MacIsaac, Connor Nguyen, Macros Uy, Alexander et al.

Source: Biosensors (2079-6374); Jul2025, Vol. 15 Issue 7, p423, 23p

A Power-Efficient 50 MHz-BW 76.8 dB Signal-to-Noise-and-Distortion Ratio Continuous-Time 2-2 MASH Delta-Sigma Analog-to-Digital Converter with Digital Calibration.

Authors: Li, Zhiyu Shang, Xueqian Feng, Haigang et al.

Source: Journal of Low Power Electronics & Applications; Jun2025, Vol. 15 Issue 2, p20, 13p

Realization of Fractional-Order Current-Mode Multifunction Filter Based on MCFOA for Low-Frequency Applications.

Authors: Sen, Fadile Kircay, Ali

Source: Fractal & Fractional. Jun2025, Vol. 9 Issue 6, p377. 18p.

A 55 V, Six-Channel Chopper and Auto-Zeroing Amplifier with 6.2 nV/ Hz  Noise and −128 dB Total Harmonic Distortion.

Authors: Li, Guolong Weng, Guoqing Chen, Zhifeng et al.

Source: Eng (2673-4117). Jun2025, Vol. 6 Issue 6, p126. 15p.

ULTRASƏS MƏSAFƏ ÖLÇƏN VERİCİSİNİN QƏBULEDİCİ VƏ GÜCLƏNDİRİCİ SXEMLƏRİNİN İŞLƏNMƏSİ.

Alternate Title: DEVELOPMENT OF TRANSMITTER, RECEIVER, AND AMPLIFIER CIRCUITS FOR ULTRASONIC DISTANCE MEASUREMENT.
УЛЬТРАЗВУКОВАЯ РАЗРАБОТКА СХЕМ ПРИЕМНИКА И УСИЛИТЕЛЯ ДАТЧИКА ИЗМЕРЕНИЯ РАССТОЯНИЯ

Authors: Uluxanova, Tükəz Xıdırov, Akif

Source: IRETC - Proceedings of Azerbaijan High Technical Educational Institutions (PAHTEI). 2025, Vol. 53 Issue 5, p411-418. 8p.