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X-APPLE-TRAVEL-ADVISORY-BEHAVIOR:AUTOMATIC
233591
20260325T092150Z
DTSTART;TZID=America/New_York:20260410T090000
DTEND;TZID=America/New_York:2
 0260410T100000
URL;TYPE=URI:https://www.wpi.edu/news/calendar/events/ece-m
 s-thesis-presentation-francesco-marrocco
ECE MS Thesis Presentation By: Francesco Marrocco
\n\n\n      \n      \n\n\n\nTitle:\nDesign and Characterization of a 4 MS/s
  8-bit Flash ADC in 180 nm CMOS for Dual-Channel Image Sensor Readout\n\nA
 bstract:\nThis thesis presents the design, implementation, and characteriz
 ation of a 4 MS/s 8-bit Flash ADC fabricated in a 180 nm CMOS process for 
 use as a readout converter in a CMOS image sensor. Two identical ADC insta
 nces are implemented to serve even and odd pixel columns respectively, pro
 viding the imager with a frame rate of approximately 40 FPS. The architect
 ure consists of a sample-and-hold stage with approximately 100 ns settling
  time, a 256-comparator resistor ladder, and ROM encoder. Device character
 ization strictly followed the IEEE 1241 standard for ADC testing, utilizin
 g standard laboratory equipment, Verilog control logic on a custom PCB, an
 d a Python-based GUI for data acquisition and processing. Measured static 
 performance yielded a peak DNL of +1.816/−0.744 LSB and INL of +12.65/�
 �1.01 LSB. Dynamic characterization at 4 MS/s produced an SINAD of 44.5 dB
  and an ENOB of 7.3 bits. The ADC supports multiple power modes ranging fr
 om 80 µW to 15 µW, with an active area of 260 µm². Channel-to-channel 
 mismatch between the two instances is evaluated and discussed in the conte
 xt of image sensor uniformity requirements.\n\nResearch Advisor:\nProf. Su
 at Ay\nECE Department, WPI\n\nResearch Committee:\nIbrahim Bozyel\nCo-advi
 sor, PhD Candidate, ECE Department, WPI\nProf. Ulkuhan Guler\nECE Departme
 nt, WPI\nProf. John McNeill\nECE Department, WPI\n\n
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