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De-Gang Chen

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Open access Sep 2026

Deterministic Foreground Calibration of Gain and Integral Nonlinearity in Constant-Slope Digital-to-Time Converters for Fractional Output Dividers

Fractional output dividers (FODs) derive many clock domains from one integer-N phase-locked loop, but the gain error and integral nonlinearity (INL) of their digital-to-time converter (DTC) limit spectral purity. Existing FOD calibrations estimate the INL statistically, with no deterministic step count or residual boun...

Saeid Karimpour, Emmanuel Nti Darko, De-Gang Chen · 0 citations
Aug 2026

ADC-Free Current-Domain Compute-In-Memory Processors for Intelligent Image Sensing

Current-domain compute-in-memory (CIM) architectures offer a promising pathway to reduce data movement and eliminate costly data conversion overheads in edge AI systems. However, conventional resistive crossbar implementations rely heavily on peripheral circuits such as analog-to-digital converters (ADCs), which domina...

K. K. Gupte, De-Gang Chen, Cheng Wang · 0 citations

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