A 14-bit, 33-Mpixel, 120-fps Image Sensor with DMOS Capacitors in 90-nm/65-nm CMOS
Year: 2015
Type: conference-paper
Abstract: We fabricated a 33-Megapixel and 120-fps CMOS image sensor with 14-bit analog-to-digital converters (ADCs) using depletion-mode MOS (DMOS) capacitors. The DMOS capacitor has high capacitance density, whereas its capacitance depends on input voltage. Hence it has been not thought to be suitable for ADCs. We used two-stage cyclic ADC architecture with a split-sampling-capacitor method to reduce the differential non-linearity (DNL) of ADC. As a result, the fabricated image sensor exhibited a DNL of +0.95/-0.80 LSB, realizing genuine 14-bit resolution.
Source: IISS online library
DOI: 10.60928/hhhl-8alz
Authors: T. Yasue, K. Kitamura, T. Watabe, H. Shimamoto, T. Kosugi, T. Watanabe, S. Aoyama, M. Monoi, Z. Wei, S. Kawahito
Language: English
Topic: CCD and CMOS Imaging Sensors
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2575486884