Results 201 to 210 of about 7,231 (240)
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ICECS'99. Proceedings of ICECS '99. 6th IEEE International Conference on Electronics, Circuits and Systems (Cat. No.99EX357), 2003
Operational Transconductance Amplifiers (OTA's) with linear input-output characteristics have become the focus of attention as a fundamental building block for analogue time-continuous circuits. Especially they are used in filters and instrumentation amplifiers with high cutoff- or corner frequencies.
Ralf Wunderlich +3 more
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Operational Transconductance Amplifiers (OTA's) with linear input-output characteristics have become the focus of attention as a fundamental building block for analogue time-continuous circuits. Especially they are used in filters and instrumentation amplifiers with high cutoff- or corner frequencies.
Ralf Wunderlich +3 more
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Instrumentation amplifiers using operational transconductance amplifiers
International Journal of Electronics, 1991Instrumentation amplifier circuits using operational transconductance amplifiers (OTAs) as active circuit elements are proposed in this paper. Two new instrumentation amplifier circuits have been described and experimentally verified, where the first circuit comprises four OTAs and five resistors and the second circuit comprises two OTAs and three ...
WANLOP SURAKAMPONTORN +3 more
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Chopper-stabilized operational transconductance amplifiers
IEEE Transactions on Instrumentation and Measurement, 1993A technique for chopper-stabilizing commercial linearized operational transconductance amplifiers (OTAs) to remove output offset current errors is described. Design equations which illustrate performance tradeoffs as a function of component values are given. The results are verified experimentally using a common bipolar OTA. >
S.E. Nordquist +2 more
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Operational Transconductance Amplifiers (OTAs)
2014This chapter describes operational transconductance amplifiers (OTAs) and their linearization for use in g m -C filters. Super-source-follower and digitally programmable OTAs are detailed. The common-mode feedback used in these OTAs and a buffer amplifier are described. A OTA implemented in 120 nm CMOS is introduced inclusive measured results.
Heimo Uhrmann +2 more
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A highly linear operational transconductance amplifier for large signal operations
1998 IEEE International Conference on Electronics, Circuits and Systems. Surfing the Waves of Science and Technology (Cat. No.98EX196), 2002Operational Transconductance Amplifiers (OTA's) with linear input-output characteristics have become a focus of interest for analogue continuous-time circuits such as filters. This paper introduces a new principle for a CMOS-OTA circuit with excellent linearity.
Jürgen Oehm, Klaus Schumacher
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Transconductance cancellation for operational amplifiers
IEEE Journal of Solid-State Circuits, 1977A low-cost internally compensated integrated-circuit operational amplifier occupying a small die area can be fabricated if the compensation capacitor value is low. This objective is attained when the amplifier-input-stage transconductance is reduced to a minimum provided the frequency response remains unchanged.
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Information capacity and power efficiency in operational transconductance amplifiers
2004 IEEE International Symposium on Circuits and Systems (IEEE Cat. No.04CH37512), 2004Noise limits information transmission in analog systems. Real analog systems possess intrinsic physical noise such as thermal noise and flicker noise and inevitably suffer degradation of information content. This loss in information can be reduced if the analog system operated at frequencies where noise is minimal. Using principles of low power circuit
Makeswaran Loganathan +2 more
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CMRR frequency response of CMOS operational transconductance amplifiers
IEEE Transactions on Instrumentation and Measurement, 2000In this paper an accurate and complete analysis of the CMRR for the most commonly used CMOS OTA's has been carried out. The analysis provides equations which can profitably be used in the design of high-accuracy integrated amplifiers to be employed in instrumentation circuits. The analysis shows that the CMRR of these circuits is highly affected by two
GIUSTOLISI, Gianluca +2 more
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Frequency compensation of MOS operational transconductance amplifiers
International Journal of Circuit Theory and Applications, 1991AbstractOperational transconductance amplifiers (OTAs) can be compensated by a capacitor placed in the differential‐to‐single‐ended (D/SE) conversion stage. the concept involved in shaping the magnitude and phase‐frequency response of OTAs is to realize a low‐frequency zero such that the effects of double poles prior to unity gain are not felt.
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OVERVIEW OF OPERATIONAL TRANSCONDUCTANCE AMPLIFIER (OTA)
2023An essential component of electronic systems is the operational transconductance amplifier (OTA). A transconductor's job is to turn an input voltage into an output current. The transconductance amplifier can be set up to either amplify or combine currents or voltages.
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