The research and applications of programmable analog device

2005 ◽  
Author(s):  
Xiaohui Yang ◽  
Qiudi Zhao ◽  
Yongjian Yang
2013 ◽  
Vol 60 (6) ◽  
pp. 1369-1380 ◽  
Author(s):  
Jounghyuk Suh ◽  
Naveen Suda ◽  
Cheng Xu ◽  
Nagib Hakim ◽  
Yu Cao ◽  
...  

Sensors ◽  
2020 ◽  
Vol 20 (11) ◽  
pp. 3329
Author(s):  
Stefan Ilić ◽  
Aleksandar Jevtić ◽  
Srboljub Stanković ◽  
Goran Ristić

This paper describes the possibility of using an Electrically Programmable Analog Device (EPAD) as a gamma radiation sensor. Zero-biased EPAD has the lowest fading and the highest sensitivity in the 300 Gy dose range. Dynamic bias of the control gate during irradiation was presented for the first time; this method achieved higher sensitivity compared to static-biased EPADs and better linear dependence. Due to the degradation of the transfer characteristics of EPAD during irradiation, a function of the safe operation area has been found that determines the maximum voltage at the control gate for the desired dose, which will not lead to degradation of the transistor. Using an energy band diagram, it was explained why the zero-biased EPAD has higher sensitivity than the static-biased EPAD.


2010 ◽  
Vol 20 (02) ◽  
pp. 419-435 ◽  
Author(s):  
RECAI KILIC

Chaos generators are generally designed and implemented by using analog circuit design techniques. Analog implementations require a variety of circuitry that comprises different passive and active electronic components like individual op-amps, comparators, analog multipliers, trigonometric function generators. Anyone who wants to experimentally investigate different structurally chaotic systems has to provide a significant amount of circuit hardware. This process may be hard and time consuming. At this stage, the question to be asked: Is there a unique analog component for implementing a universal analog chaos generator which is capable of generating the chaotic signals of nearly all analog-based chaotic systems. Fortunately, we can now answer this question positively. This analog device is FPAA (Field-Programmable Analog Array). FPAA is the analog equivalent of the FPGA (Field-Programmable Gate Array) used as programmable device in digital signal processing. FPAA is a programmable device for implementing a rich variety of systems including analog functions via dynamic reconfiguration. FPAA can be configured in real time which allows the designers to modify the design or make completely new design in real time. In this paper, we aim to show how FPAA device can be used as universal device for design and implementation of programmable analog chaos generators. For this purpose, we will introduce three FPAA-based design examples: autonomous Chua's circuit, nonautonomous MLC (Murali–Lakshmanan–Chua) circuit and a chaotic system based on a PLL (Phase Locked Loop) model.


Author(s):  
Rui Zheng ◽  
Jounghyuk Suh ◽  
Cheng Xu ◽  
Nagib Hakim ◽  
Bertan Bakkaloglu ◽  
...  

2016 ◽  
Vol 63 (2) ◽  
pp. 181-190 ◽  
Author(s):  
Naveen Suda ◽  
Jounghyuk Suh ◽  
Nagib Hakim ◽  
Yu Cao ◽  
Bertan Bakkaloglu

2013 ◽  
Vol 61 (3) ◽  
pp. 691-696 ◽  
Author(s):  
R. Suszynski ◽  
K. Wawryn

Abstract A rapid prototyping method for designing mixed signal systems has been presented in the paper. The method is based on implementation of the field programmable analog array (FPAA) to configure and reconfigure mixed signal systems. A serial algorithmic analog digital converter has been used as an example. Three converter architectures have been selected and implemented FPAA device. To verify and illustrate converters operation and prototyping capabilities, implemented converters have been excited by a sinusoidal signal. Analog sinusoidal excitations, digital responses and sinusoidal waveforms after reconstruction are presented.


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