Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"opamp"”.
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A low-power reconfigurable analog-to-digital converter
… and (3) by varying the bias currents of the opamps in proportion with converter sampling frequency, accomplished through the use of a phase-locked loop. Target input signals for this ADC include high frequency and moderate resolution signals such as video and low I.F. in radio Receivers, low …
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Wide common mode input operational amplifier with serially programmable output offset
… of the programmable Gm-C filter, into which the opamp will be integrated.
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A High Temperature Reference Voltage Generator with SiC Transistors
… p-type SiC transistors (pnp BJT, PMOS) and OpAmp inconvenience, an all npn voltage reference architecture has been developed based on Widlar bandgap reference concept. The proposed reference voltage generator demonstrates for the first time a functional high temperature discrete reference …
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CMOS passive pixel image design techniques
… output is in the form of charge. Column-parallel opamps are used to amplify the charge to a voltage output. The main advantage of the passive pixel is a higher fill factor in a given pixel geometry. This advantage becomes increasingly important as we scale to smaller pixel sizes. The higher fill …
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Time-based control techniques for integrated DC-DC conversion
… used as an integrator in place of conventional opamp-RC or Gm-C integrators while a delay line is used to perform voltage-to-time conversion and to sum time signals. A simple flip-flop generates a pulse-width modulated signal from the time-based output of the controller. Hence time-based control …
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Integrated Wideband Self-Interference Cancellation Techniques for FDD and Full-Duplex Wireless Communication
… 120/72 µW comes from the feedback control-loop / Opamp, respectively. The proposed PPF method has a simulated input impedance of 150Ω in-parallel with 18fF.
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Integrated realizations of reconfigurable low pass and band pass filters for wide band multi-mode receivers
With the explosive development of wireless communication systems the specifications of the supporting hardware platforms have become more and more demanding. According to the long term goals of the industry, future communications systems should integrate a wide variety of standards. This leads to …