Abstract

High-speed electro-optic analog-to-digital converters (eoADCs) are critical for next-generation mixed-signal systems that require ultra-fast data conversion, leveraging the inherent advantages of photonics such as length-independent impedance and high-speed light propagation. We present a novel 1-hot encoded eoADC architecture that utilizes fabrication-compatible photonic components including microring resonators and photodiodes to perform analog voltage quantization and thresholding in the optical domain, effectively addressing the speed limitations of traditional electronic systems. A comprehensive analysis is conducted across a broad design space, encompassing device-, circuit-, and technology-level parameters to optimize both energy efficiency and performance. The architecture supports seamless integration with electronic subsystems via digital bitstream outputs and is highly scalable for mass …

Date

2026

Authors

Md Abdullah-Al Kaiser, Subhradip Chakraborty, Sugeet Sunder, Ajey Jacob, Akhilesh Jaiswal

Conference

2026 IEEE 69th International Midwest Symposium on Circuits and Systems (MWSCAS)

Pages

341-345

Publisher

IEEE