Introduction
For my FYP1, I am currently doing research about developing a conventional Analog-to-Stochastic Converter, which is a prototype that, in theory, could offer an alternative that is power and area efficient compared with the typical Analog-to-Digital Converter (ADC) that is being used in CMOS image sensors.
Literature Review
Currently, I have found some articles that are going to be my main point of reference for developing an ASC device. The articles are:
1. Gross, W., Onizawa, N., Matsumiya, K., & Hanyu, T. (2018). Application of stochastic computing in brainware. Nonlinear Theory and Its Applications, IEICE, 9(4), 406–422. https://doi.org/10.1587/nolta.9.406
- This paper discussed the application of stochastic computing in brainware Low-Scale-Integration for visual signal processing.
- This paper explained the concept of ASC
- The methodology of this ASC is using Magnetic Tunnel Junction, differs with CMOS technology that I want to use.
2. Weaver, S., Hershberg, B., Kurahashi, P., Knierim, D., & Moon, U.-K. (2010). Stochastic Flash Analog-to-Digital Conversion. IEEE Transactions on Circuits and Systems I: Regular Papers, 57(11), 2825–2833. https://doi.org/10.1109/tcsi.2010.2050225
- This paper discussed using the stochastic approach in Flash ADC.
- Did a comparison between conventional and stochastic typed Flash ADC.
- Did mention the size of comparators used in flash ADC using formula 2^(n-1)
3. Ceballos, J. L., Galton, I., & Temes, G. C. (2005). Stochastic analog-to-digital conversion. 48th Midwest Symposium on Circuits and Systems, 855–858. https://doi.org/10.1109/mwscas.2005.1594236
- This paper explain the possibility using stochastic Analog-to-Digital Converter for data conversion.
- Talks about Delta-Sigma method which is not being used with the one I am proposing.
4. Scott, M. D., Boser, B. E., & Pister, K. S. J. (2003). An ultralow-energy ADC for smart dust. IEEE Journal of Solid-State Circuits, 38(7), 1123–1129. https://doi.org/10.1109/jssc.2003.813296
- This paper highlights SAR as the best ADC to be used in ultra-low power usage.
- Did shows SAR ADC Block Diagram, SAR Circuit Diagram, and Comparator Transistor Level Schematic.
These 4 main articles, with other articles, hopefully will help me to get a better understanding of the theory and development of ASC device for my FYP1 project.