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A 16-channel CMOS Inverter Transimpedance Amplifier Array for 3-D Image Processing of Unmanned Vehicles
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 Title & Authors
A 16-channel CMOS Inverter Transimpedance Amplifier Array for 3-D Image Processing of Unmanned Vehicles
Park, Sung Min;
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 Abstract
This paper presents a 16-channel transimpedance amplifier (TIA) array implemented in a standard 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 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 including I/O pads. For comparison, a current-mode 16-channel TIA array is also realized in the same CMOS technology, which exploits regulated-cascode (RGC) input configuration. Measurements reveal that the I-TIA array achieves superior performance in optical pulse measurements.
 Keywords
Array;CMOS;Inverter;LADAR;RGC;TIA;Unmanned vehicles;
 Language
Korean
 Cited by
1.
1-Gb/s Readout Amplifier Array for Panoramic Scan LADAR Systems, The Transactions of The Korean Institute of Electrical Engineers, 2016, 65, 3, 452  crossref(new windwow)
2.
A Dual-Channel CMOS Transimpedance Amplifier Array with Automatic Gain Control for Unmanned Vehicle LADARs, The Transactions of The Korean Institute of Electrical Engineers, 2016, 65, 5, 831  crossref(new windwow)
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