A 4.9 GS/s strongarm latch comparator topology with offset correction in 32-nm

Ganesh, Chokkakula, Murali, A., Krishna, B. Vamsy, Babu, T. Ananda, Sharma, Girraj ORCID: https://orcid.org/0000-0003-4547-2813, Panigrahy, Asisa Kumar and Prakash, M. Durga (2026) A 4.9 GS/s strongarm latch comparator topology with offset correction in 32-nm. Analog Integrated Circuits and Signal Processing, 128 (1): 8. Springer . ISSN 0925-1030 Available at: https://doi.org/10.1007/s10470-026-02611-4

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Abstract

In mixed-signal integrated circuit design, comparators are essential, especially for low-power, high-speed applications such as data converters, communication systems, and portable devices. Conventional comparator designs often struggle to balance speed and power efficiency. This paper proposes a low-power, high-speed modified strongARM latch circuit topology with an offset correction. The proposed design performance is compared with open-loop, preamplifier latch-based, and strongARM latch comparators. The proposed design incorporates innovative architectural modifications to enhance speed, power efficiency, and offset. The proposed comparator achieves significant delay reductions of 61%, 55%, and 47% compared to the open-loop, preamplifier latch-based, and strongARM latch comparators, respectively. Furthermore, the proposed design achieves a 30.7% reduction in dynamic power dissipation compared to the strongARM design. PVT analysis was performed by evaluating the design across standard corners (TT, FF and SS) and under a 5% drop in supply voltage (1.0 V to 0.95 V). The offset correction mechanism of the proposed comparator significantly increases the number of successful output samples, which can be observed through Monte Carlo simulation using Synopsys Custom Compiler at a 32 nm technology node.

Item Type: Article
Uncontrolled Keywords: ADC; Kick-back noise | Monte carlo | Offset | Offset cancellation | StrongARM | Threshold
Subjects: Physical, Life and Health Sciences > Engineering and Technology
Vol/Issue no. published date: July 2026
Depositing User: Mr. Syed Anas Ali
Date Deposited: 21 Jul 2026 10:22
Last Modified: 21 Jul 2026 10:22
Official URL: https://doi.org/10.1007/s10470-026-02611-4
URI: https://pure.jgu.edu.in/id/eprint/12054

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