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A 7.2 GHz Bipolar Operational Transconductance Amplifier for Fully Integrated OTA-C Filters

  • M. Atarodi
  • J. ChomaJr.
Chapter

Abstract

Using a complementary bipolar junction transistor process having NPN transistors with a maximum short circuit common emitter gain-bandwidth product (f T ) of 7.2 GHz and PNP transistors with a maximum f T of 4.5 GHz, an operational transconductance amplifier has been designed for a 3-dB bandwidth of 7.2 GHz. The design process invokes new phase compensation strategies and develops innovative new ways of exploiting existing broadbanding techniques. The utility of the design is confirmed by demonstrating its application in two operational transconductance amplifier-capacitance filters. One of these examples is a 225 MHz lowpass filter, while the other is a bandpass filter with a center frequency of 250 MHz.

Keywords

Dominant Pole Phase Compensation Analog Integrate Circuit Operational Transconductance Amplifier Capacitive Shunt 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • M. Atarodi
    • 1
  • J. ChomaJr.
    • 2
  1. 1.Linear Technology CorporationMilpitasUSA
  2. 2.Department of Electrical Engineering-ElectrophysicsUniversity of Southern CaliforniaLos AngelesUSA

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