@article{8560afd9d3dd4e1db84561b9d2315dbe,
title = "High-frequency two-input CMOS OTA for continuous-time filter applications",
abstract = "A high-frequency fully differential CMOS operational transconductance amplifier (OTA) is presented for continuous-time filter applications in the megahertz range. The proposed design technique combines a linear cross-coupled quad input stage with an enhanced folded-cascode circuit to increase the output resistance of the amplifier. SPICE simulations show that DC-gain enhancement can be obtained without significant bandwidth limitation. The two-input OTA developed is used in high-frequency tuneable filter design based on IFLF and LC ladder simulation structures. Simulated results of parameters and characteristics of the OTA and filters in a standard 1.2 μm CMOS process (MOSIS) are presented. A tuning circuit is also discussed.",
author = "J. Glinianowicz and J. Jakusz and S. Szczepanski and Y. Sun",
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year = "2000",
doi = "10.1049/ip-cds:20000317",
language = "English",
volume = "147",
pages = "13--18",
journal = "IEE Proceedings Circuits Devices and Systems",
issn = "1350-2409",
publisher = "Institute of Electrical Engineers",
number = "1",
}