1. Hakan Çetinkaya, Alper Girgin, Tufan Coskun Karalar, Fully integrated multi-level non-overlapping clock phase generator for pipelined ADCs in SiGe BiCMOS 0.13 µm, Microelectronics Journal, Volume 139, 2023, 105840, ISSN 0026-2692, https://doi.org/10.1016/j.mejo.2023.105840.

1. H. Çetinkaya and Y. Talay, "A Low Noise TIA with T-network Feedback Using High Value Gate Controlled PMOS Resistors," 2023 30th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Istanbul, Turkiye, 2023, pp. 1-4.


2. H. Çetinkaya and T. C. Karalar, "A 1.5-b Front-end Sub-ADC with Symmetrical Cross Coupled Bootstrap and Adaptive Power/Ground Switches for GS/s Sampling Rate SHA-less Pipeline ADCs," 2019 11th International Conference on Electrical and Electronics Engineering (ELECO), Bursa, Turkey, 2019, pp. 518-521.


3. Hakan Cetinkaya, Ali Zeki, Alper Girgin, Tufan Coskun Karalar "Composite Resistor Technique for Process and Temperature Compensations of Low Power Ring Oscillators", Proceedings of the 10th IEEE Latin American Symposium on Circuits and Systems (LASCAS), pp. 29-32, Armenia, Quindío, Colombia, February 2019.


4. Hakan Cetinkaya, Ali Zeki, Alper Girgin, Derun Karabeyoglu, Tufan Coskun Karalar "A 1.6 GHz Non-overlap Clock Generation with Differential Clock Driver and Clock Level Shifters for GS/s Sampling Rate Pipeline ADCs", Proceedings of the 25th IEEE International Conference Electronics, Circuits and Systems (ICECS), pp. 277-280, Bordeaux, France, December 2018.


5. Hakan Cetinkaya, Tufan Coskun Karalar, B. Siddik Yarman, "A Concurrent Multiband Fully Differential CMOS LNA with a Local Active Feedback for Cellular Applications 3G-4G", Proceedings of the 24th IEEE International Conference Electronics, Circuits and Systems (ICECS), pp. 98-102, Batumi, Georgia, December 2017.


6. Hakan Cetinkaya, Nil Tarim, "A tunable active filter in CMOS for RF applications", Proceedings of the 15th IEEE International Conference Electronics, Circuits and Systems (ICECS), pp. 121-124, Malta, August-September 2008.


7. Hakan Cetinkaya, Nil Tarim, "A 5th-order 900 MHz active Chebyshev filter in CMOS", Proceedings of the IEEJ International Analog VLSI Workshop, pp. 50-55, Istanbul, Turkey, July-August 2008.

Patents:

1. H. Çetinkaya and T. C. Karalar, "A Flip Around Multiplying Digital to Analog Converter (MDAC) Circuit for Switched Capacitor Pipelined ADC Stages," TR 2018 09569 B, Jul. 21, 2022. (https://portal.turkpatent.gov.tr)


2. H. Çetinkaya and T. C. Karalar, "A Bipolar Complementary Metal Oxide Semiconductor Residue Amplifier for Multiplying Digital to Analog Converters (MDACs)," TR 2018 09570 B, Aug. 23, 2021. (https://portal.turkpatent.gov.tr)