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Ultra-Low Voltage VDCC Design by Using DTMOS

100%
Başak M., Kaçar F.
Acta Physica Polonica A
|
2016
|
vol. 130
|
issue 1
223-225
EN
In this paper, a new ultralow voltage and ultralow power voltage differencing current conveyor based on dynamic threshold voltage MOS transistors was proposed. The simulations were performed by using LTSpice Program with TSMC CMOS 0.18 μ m process parameters. A new notch filter configuration was also presented as an application for the proposed voltage differencing current conveyor. The power consumption of proposed voltage differencing current conveyor was simply 12.42 nW at symmetric ± 0.2 V supply voltage. The simulation results were found in close agreement with the theoretical results.
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Prediction Methodology of Electromagnetic Emission for Integrated Circuits

100%
Başak M., Kuntman A.
Acta Physica Polonica A
|
2015
|
vol. 128
|
issue 2B
B-248-B-250
EN
The main objective of this paper is to define a new method which is able to predict the electromagnetic emission of integrated circuits. In this study, a test circuit including the MC9S12XMAG-family microcontroller was designed and measurements were made to confirm the applied measurement techniques. Moreover, internal current was obtained from the measured external current which is described as a dynamic current activity on the die. The input impedance measurements were performed in the frequency range from 1 MHz to 2 GHz. The external current was measured by the spectrum analyzer has been used to obtain the internal current of the die. Extracted passive distribution network and internal activity component values have been given to obtain the integrated circuit emission model. The magnetic field is simulated at different frequencies and heights over the circuit under test. The model allows simulating the same magnetic field radiated by the component under test with the suficient accuracy for the application at any distance from the device under test. The model considers the component like a "black box", so that it can be applied to any passive or active component.
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