Design and Simulation of a 3-Bit Flash ADC Using Threshold Inverter Quantization (TIQ) for 40 GHz Sampling in Cadence Virtuoso

Jiffil A Joshy

doi:10.63363/aijfr.2026.v07i03.3008

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Design and Simulation of a 3-Bit Flash ADC Using Threshold Inverter Quantization (TIQ) for 40 GHz Sampling in Cadence Virtuoso

Author(s)	Mr. Jiffil A Joshy
Country	India
Abstract	Threshold Inverter Quantization (TIQ) replaces the resistor ladder and differential comparators of a conventional flash ADC with a bank of sized CMOS inverters whose switching thresholds encode the quantization levels. This document motivates TIQ as a compelling option for low to moderate resolution, high speed, and ultra compact digitizers in deeply scaled CMOS. It synthesizes two decades of literature, identifies core challenges (PVT sensitivity, mismatch, encoder robustness, and calibration), and defines concrete research objectives for a state of the art TIQ based flash ADC by 2025.
Field	Computer > Electronics
Published In	Volume 7, Issue 3, May-June 2026
Published On	2026-05-01
DOI	https://doi.org/10.63363/aijfr.2026.v07i03.3008

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Design and Simulation of a 3-Bit Flash ADC Using Threshold Inverter Quantization (TIQ) for 40 GHz Sampling in Cadence Virtuoso

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