Kent Edrian Lozada
Post-Doctoral Researcher @ KAIST
🧠About me
I am currently a postdoctoral researcher at the KAIST Mixed Signal Integrated Circuits Laboratory (MSICL) under the 2025 KAIST Jang Young Sil Fellow Program (Excellence Track).
I received my Ph.D. in electrical engineering from KAIST in 2025 under the supervision of Professor Seung-Tak Ryu. My research interests focus on mixed-signal integrated circuit design with an emphasis on data converters. I worked on high-resolution and low-power analog-to-digital converters (ADCs), continuous-time (CT) and hybrid ADCs (e.g., SAR-assisted ADCs), and delta-sigma modulators (DSMs).
During my M.S.-Ph.D. studies, I focused on developing a high-resolution, low-power, digital-intensive ADC architecture. Specifically, I worked on a digital-intensive SAR-assisted CT DSM architecture, which offers significant advantages over discrete-time (DT) ADCs, such as inherent anti-aliasing and ease of driving.
My contributions have been widely recognized at numerous top-tier IEEE conferences and journals, including the IEEE Symposium on VLSI Technology and Circuits (VLSI Circuits), IEEE Custom Integrated Circuits Conference (CICC), IEEE Journal of Solid-State Circuits (JSSC), etc. I have also received numerous paper invitations, presentation opportunities, and several awards.
🎓 Education
- Advisor: Prof. Seung-Tak Ryu
- Dissertation: Design of Digital-Intensive Continuous-Time Delta-Sigma Modulator Architecture
- Awarded: 2025 KAIST College of Engineering Outstanding Ph.D. Dissertation Award [Full List]
💼 Work / Research Experiences
🔬 Research Highlights
📚 First-Author Publication
1. A 0.38-mW 200-kHz-BW Digital-Intensive Single-Opamp Fourth-Order Continuous-Time Delta-Sigma Modulator With Third-Order Digital Noise Coupling in 28-nm CMOS
Kent Edrian Lozada, Ye-Dam Kim, Ho-Jin Kim, Youngjae Cho, Michael Choi, and Seung-Tak Ryu
IEEE Journal of Solid-State Circuits (JSSC) 2025 [Paper]
(Invited Paper: Special Issue for VLSI Circuits 2024)
2. SAR-Assisted Energy-Efficient Hybrid ADCs
Kent Edrian Lozada, Dong-Jin Chang, Dong-Ryeol Oh, Min-Jae Seo, and Seung-Tak Ryu
IEEE Open Journal of the Solid-State Circuits Society (OJ-SSCS) 2024 [Paper]
(Invited Paper: Tutorial Review Paper)
3. A 25-kHz-BW 97.4-dB-SNDR SAR-Assisted Continuous-Time 1-0 MASH Delta-Sigma Modulator with Digital Noise Coupling
Dong-Hun Lee‡, Kent Edrian Lozada‡ (‡ Equal Contribution), Ye-Dam Kim, Ho-Jin Kim, Youngjae Cho, Michael Choi, and Seung-Tak Ryu
IEEE Journal of Solid-State Circuits (JSSC) 2024 [Paper]
(Invited Paper: Special Issue for A-SSCC 2023)
4. A 4th-Order Continuous-Time Delta-Sigma Modulator with Hybrid Noise-Coupling
Kent Edrian Lozada, Il-Hoon Jang, Gyeom-Je Bae, Dong-Hun Lee, Ye-Dam Kim, Hankyu Lee, Seong Joong Kim, and Seung-Tak Ryu
IEEE Transactions on Circuits and Systems II: Express Briefs (TCAS-II) 2022 [Paper]
(Invited Paper: Special Issue for MWSCAS 2022)
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