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A 16-channel CMOS inverter transimpedance amplifier array for 3-D image processing of unmanned vehicles

Title
A 16-channel CMOS inverter transimpedance amplifier array for 3-D image processing of unmanned vehicles
Authors
Park S.M.
Ewha Authors
박성민
SCOPUS Author ID
박성민scopus
Issue Date
2015
Journal Title
Transactions of the Korean Institute of Electrical Engineers
ISSN
1975-8359JCR Link
Citation
vol. 64, no. 12, pp. 1730 - 1736
Keywords
ArrayCMOSInverterLADARRGCTIAUnmanned vehicles
Publisher
Korean Institute of Electrical Engineers
Indexed
SCOPUS; KCI scopus
Abstract
This paper presents a 16-channel transimpedance amplifier (TIA) array implemented in a standard 0.18-urn CMOS technology for the applications of panoramic scan LADAR (PSL) systems. Since this array is the front-end circuits of the PSL systems to recover three dimensional image for unmanned vehicles, low-noise and high-gain characteristics are necessary. Thus, we propose a voltage-mode inverter TIA (I-TIA) array in this paper, of which measured results demonstrate that each channel of the array achieves 82-dBQ transimpedance gain, 565-MHz bandwidth for 0.5-pF photodiode capacitance, 6.7-pA/sqrt(Hz) noise current spectral density, and 33.8-mW power dissipation from a single 1.8-V supply. The measured eye-diagrams of the array confirm wide and clear eye-openings up to 1.3-Gb/s operations. Also, the optical pulse measurements estimate that the proposed 16-channel TIA array chip can detect signals within 20 meters away from the laser source. The whole chip occupies the area of 5.0 × 1.1 mm2 including I/O pads. For comparison, a current-mode 16-channel TIA array is also realized in the same 0.18-μm CMOS technology, which exploits regulated-cascode (RGC) input configuration. Measurements reveal that the I-TIA array achieves superior performance in optical pulse measurements. © The Korean Institute of Electrical Engineers.
DOI
10.5370/KIEE.2015.64.12.1730
Appears in Collections:
엘텍공과대학 > 전자공학과 > Journal papers
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