000			a
999			_c15433 _d15433
003			OSt
005			20211020124806.0
008			211020b xxu||||| |||| 00| 0 eng d
040			_aAIKTC-KRRC _cAIKTC-KRRC
100			_914579 _aNayak, Siva Samba R.
245			_aComplementary Metal Oxide Semiconductor Readout Integrated Circuit for Imaging Applications
250			_aVol,6(2). July-December
260			_aHaryana _bInternational Science Press _c2016
300			_a89-91p
520			_athis paper presents a novel continuous-time simultaneous-readout scheme for active imaging systems based on orthogonal modulation of photo detector signals. The superimposed-continuous-time approach presented here differs from the conventional scheduled-discrete-time scheme in that the photo detector signals are summed in a common bus concurrently and then converted to voltage levels for digitization. We illustrate that our proposed architecture may be profitable. Predominantly, in solicitations, the bandwidth necessities for a time-multiplexed pattern are highly demanding. In arrears to the up-scaling trend of photo detector arrays motivated by requirements of higher image resolution, the area per readout cell has consistently decreased over the last years and with it the maximum size of integration capacitance. The imminent consequence is that for the conventional readout method the integration capacitance saturates for the same levels of optical flux, which becomes a major limiting factor. The readout cell that we present in this work does not suffer from that effect, as the integration of photo charges is performed on a per row basis in a capacitive Tran impedance amplifier.The key elements of the proposed orthogonal encoding architecture are the active readout cell and the Tran impedance amplifier that performs current to voltage conversion. We describe the readout cell and Tran impedance amplifier operation principle, their properties, major challenges and design methodology. A proof of principle test system is implemented using 0.5μm-CMOS technology to demonstrate functionality of the readout architecture. Test results show it to be a solid option for highly-integrated active and passive imaging systems.
650		0	_94622 _aComputer Engineering
700			_912884 _aSai Ram, M. Satya
773	0		_x2249-0809 _dNew Delhi Serials Publication Pvt. Ltd. _tInternational journal of embedded software and open source systems
856			_uhttps://serialsjournals.com/index.php?route=product/product&path=50&product_id=495 _yClick Here
942			_2ddc _cAR