Searched for: subject%3A%22Delta%255C-Sigma%22
(1 - 9 of 9)
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Li, Shenyang (author)
This thesis describes the design of a 3rd order 1-bit delta-sigma modulator whose input-signal range (0 to 1.95V) exceeds its supply voltage (1.2V). By using a passive input stage and a single-OTA resonator, this beyond-the-rails modulator realizes a 3rd order loop filter with only two amplifiers instead of the usual three and thus achieves...
master thesis 2023
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Pecanins Martínez, Victor (author)
Several techniques have been proposed to reduce the swing at the input stage of a CTDSM. One of these is using a simple passive RC input stage. In prior works, this increased in-band quantization noise. In this paper, we use positive feedback to realize complex-conjugate poles with a passive input stage, obtaining the same noise-shaping as an...
master thesis 2022
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Mohamed Mahmoud Saad Hassan Saad, Mohamed (author)
This thesis presents a BJT-based CMOS temperature-to-digital converter (TDC). With a continuous-time readout, the TDC avoids the kT/C noise limit incurred by previous discrete-time (switched-capacitor) TDCs. An energy-efficient BJT front-end generates single PTAT and CTAT currents for being digitized by a delta-sigma modulator through a linear...
master thesis 2020
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Loopik, Leon (author)
This thesis presents the design and testing of a multi-path analog-to-digital converter for current sensing in battery management systems. The specifications of this converter are (1) continuously integrate and convert a signal at 125 Hz with a resolution of 20 bit and (2) perform on demand fast conversions of 20 μs at a resolution of 14 bit....
master thesis 2017
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Rout, S. (author)
With the bandwidth of the ECG signal extending from sub-Hz to 200 Hz, a major challenge for an ECG readout system lies in implementing the high-pass (HP) cut-off frequency as this translates into the realization of large time constants on-chip.Although techniques such as those based on the use of pseudo-resistors to obtain very large time...
master thesis 2016
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Luo, Y. (author)
This thesis focuses on developing a high-resolution, energy-efficient smart temperature sensor. A resistor-based temperature-sensing structure is chosen as the core of the sensor. To digitize the core output, a low-noise readout circuit is developed. The design was fabricated in a standard CMOS technology, and the measurements were conducted to...
master thesis 2015
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Chen, C. (author)
master thesis 2012
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Fekri, A. (author)
Displacement sensors are widely employed in industry for measuring position and movement of objects as well as for measuring other physical quantities like pressure, acceleration, etc., which can first be converted into movement. This thesis describes the implementation of a ratio metric analog-to-digital converter (ADC) for an eddy current...
master thesis 2012
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Guo, F. (author)
An interface circuit for a fully-integrated capacitive humidity-sensor is implemented using 0.16?m standard CMOS technology. This interface circuit is intended to be used in a smart RFID sensor platform. This thesis focuses on improving the energy-efficiency of the interface circuit. A third-order incremental delta-sigma converter based on...
master thesis 2011
Searched for: subject%3A%22Delta%255C-Sigma%22
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