This paper presents a low-power low-noise wide-dynamic-range GaN-based UV detector with pixel-level A/D
conversion. The detector comprised an array of 50×50μm2 pixels with a multi-channel bit serial (MCBS) ADC in each
pixel. Each pixel contains a UV photo-detector, a 1-bit comparator and a 3-T memory cell. The A/D conversion is
performed simultaneously for all pixels. The digital data is read out from the pixel array in manner of a random access
digital memory. Since there are many ADCs operating simultaneously, power consumption for each ADC must be
minimized. To satisfy the low power consumption, A power-down circuit is introduced in. The minimal value for ADC
resolution and the frame rate are 10bits and 100f/s respectively. A high GBW comparator is designed to satisfy this
demand. In order to suppress the FPN and 1/f noise a digital correlated double sampling (CDS) is adopted in this
application.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.