Presentation + Paper
20 November 2024 Voltage domain TDI with diffusion-enhanced pixels
Bart Dierickx, Gaozhan Cai, Bilgesu Sezgin, Veera Sridharan, Koen Liekens, Arne Crouwels, Benjamin Van Camp, Samaneh Ranjbar, Ben Debrabanter
Author Affiliations +
Abstract
As alternative to a CCD-based, charge domain, Time Delayed Integration (TDI) operation, we developed a analog domain TDI image sensor. The 143μm pixel pitch, 4-stage TDI operation is emulated by analog summation of 4 time-delayed samples of 4 rows of pixels. The frame period is 142μs. The device is intended for “push-broom” operation in a remote sensing mission. These pixels are pretty large; the individual pixel has a sun-shape (star-shape) geometry that speeds up the photo charge diffusion to the central transfer gate with an estimated factor of at least four.
Conference Presentation
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Bart Dierickx, Gaozhan Cai, Bilgesu Sezgin, Veera Sridharan, Koen Liekens, Arne Crouwels, Benjamin Van Camp, Samaneh Ranjbar, and Ben Debrabanter "Voltage domain TDI with diffusion-enhanced pixels", Proc. SPIE 13192, Sensors, Systems, and Next-Generation Satellites XXVIII, 131920U (20 November 2024); https://doi.org/10.1117/12.3037802
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KEYWORDS
Signal to noise ratio

Diffusion

Analog electronics

Charge-coupled devices

Photodiodes

Remote sensing

Image sensors

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