Software-Defined, WiFi and BLE Compliant Back-Channel for Ultra-Low Power Wireless Communication. - Huajun Zhang 001; David D. Wentzloff; Hun-Seok Kim (GLOBECOM, 2016)

A 1-V 560-nW SAR ADC With 90-dB SNDR for IoT Sensing Applications. - Huajun Zhang 001; Zhichao Tan; Chao Chu; Baozhen Chen; Hongxing Li; Michael C. W. Coln; Khiem Nguyen (IEEE Trans. Circuits Syst. II Express Briefs, 2019)

A 6 $ mu$ W 95 dB SNDR Inverter Based $ Sigma Delta$ Modulator With Subtractive Dithering and SAR Quantizer. - Huajun Zhang 001; Zhichao Tan; Yi Zhang; Baozhen Chen; Roberto Maurino; Robert Adams 001; Khiem Nguyen (IEEE Trans. Circuits Syst. II Express Briefs, 2019)

23.4 A 28W -108.9dB/-102.2dB THD/THD+N Hybrid ΔΣ-PWM Class-D Audio Amplifier with 91% Peak Efficiency and Reduced EMI Emission. - Shoubhik Karmakar; Huajun Zhang 001; Robert H. M. van Veldhoven; Lucien J. Breems; Marco Berkhout; Qinwen Fan; Kofi A. A. Makinwa (ISSCC, 2020)

A -107.8 dB THD+N Low-EMI Multi-Level Class-D Audio Amplifier. - Huajun Zhang 001; Shoubhik Karmakar; Lucien J. Breems; Quino Sandifort; Marco Berkhout; Kofi A. A. Makinwa; Qinwen Fan (VLSI Circuits, 2020)

A 28-W, -102.2-dB THD+N Class-D Amplifier Using a Hybrid ΔΣM-PWM Scheme. - Shoubhik Karmakar; Huajun Zhang 001; Robert H. M. van Veldhoven; Lucien J. Breems; Marco Berkhout; Qinwen Fan; Kofi A. A. Makinwa (IEEE J. Solid State Circuits, 2020)

A 94.1 dB DR 4.1 nW/Hz Bandwidth/Power Scalable DTDSM for IoT Sensing Applications Based on Swing-Enhanced Floating Inverter Amplifiers. - Yibo Zhao 003; Huajun Zhang 001; Yaopeng Hu; Yuanxin Bao; Le Ye; Wanyuan Qu; Menglian Zhao; Zhichao Tan (CICC, 2021)

A -109.1 dB/-98 dB THD/THD+N Chopper Class-D Amplifier with >83.7 dB PSRR Over the Entire Audio Band. - Huajun Zhang 001; Nuriel Rozsa; Marco Berkhout; Qinwen Fan (ESSCIRC, 2021)

A -121.5 dB THD Class-D Audio Amplifier with 49 dB Suppression of LC Filter Nonlinearity and Robust to +/-30% LC Filter Spread. - Huajun Zhang 001; Marco Berkhout; Kofi A. A. Makinwa; Qinwen Fan (VLSI Circuits, 2021)

A High-Linearity and Low-EMI Multilevel Class-D Amplifier. - Huajun Zhang 001; Shoubhik Karmakar; Lucien J. Breems; Quino Sandifort; Marco Berkhout; Kofi A. A. Makinwa; Qinwen Fan (IEEE J. Solid State Circuits, 2021)

A 121.4dB DR, -109.8dB THD+N Capacitively-Coupled Chopper Class-D Audio Amplifier. - Huajun Zhang 001; Marco Berkhout; Kofi A. A. Makinwa; Qinwen Fan (ISSCC, 2022)

A -121.5-dB THD Class-D Audio Amplifier With 49-dB LC Filter Nonlinearity Suppression. - Huajun Zhang 001; Marco Berkhout; Kofi A. A. Makinwa; Qinwen Fan (IEEE J. Solid State Circuits, 2022)

A 121.4-dB DR Capacitively Coupled Chopper Class-D Audio Amplifier. - Huajun Zhang 001; Marco Berkhout; Kofi A. A. Makinwa; Qinwen Fan (IEEE J. Solid State Circuits, 2022)

A Chopper Class-D Amplifier for PSRR Improvement Over the Entire Audio Band. - Huajun Zhang 001; Nuriel N. M. Rozsa; Marco Berkhout; Qinwen Fan (IEEE J. Solid State Circuits, 2022)

A 4-μW Bandwidth/Power Scalable Delta-Sigma Modulator Based on Swing-Enhanced Floating Inverter Amplifiers. - Menglian Zhao; Yibo Zhao 003; Huajun Zhang 001; Yaopeng Hu; Yuanxin Bao; Le Ye; Wanyuan Qu; Zhichao Tan (IEEE J. Solid State Circuits, 2022)

A 120.9dB DR, -111.2dB THD+N Digital-Input Capacitively-Coupled Chopper Class-D Audio Amplifier. - Huajun Zhang 001; Marco Berkhout; Kofi A. A. Makinwa; Qinwen Fan (ISSCC, 2023)

A Class-D Piezoelectric Speaker Driver Using A Quadrature Feedback Chopping Scheme achieving 29dB Large-Signal THD+N Improvement. - Shoubhik Karmakar; Huajun Zhang 001; Marco Berkhout; Qinwen Fan (VLSI Technology and Circuits, 2023)

A 120.9-dB DR Digital-Input Capacitively Coupled Chopper Class-D Audio Amplifier. - Huajun Zhang 001; Marco Berkhout; Kofi A. A. Makinwa; Qinwen Fan (IEEE J. Solid State Circuits, 2023)

21.3 A -106.3dB THD+N Feedback-After-LC Class-D Audio Amplifier Employing Current Feedback to Enable 530kHz LC-Filter Cut-Off Frequency. - Huajun Zhang 001; Haochun Fan; Miao Zhang; Marco Berkhout; Qinwen Fan (ISSCC, 2024)

21.1 A 121.7dB DR and -109.0dB THD+N Filterless Digital-Input Class-D Amplifier with an HV Multibit IDAC Using Tri-level Output and Employing a Transition-Rate-Balanced Bidirectional RTDEM Scheme. - Huajun Zhang 001; Mingshuang Zhang; Mengying Chen; Arthur Admiraal; Miao Zhang; Marco Berkhout; Qinwen Fan (ISSCC, 2024)

A 121.7-dB DR and -109.0-dB THD+N Filterless Digital-Input Class-D Amplifier With an HV IDAC Using Tri-Level Unit Cells. - Huajun Zhang 001; Mingshuang Zhang; Mengying Chen; Arthur Admiraal; Miao Zhang; Marco Berkhout; Qinwen Fan (IEEE J. Solid State Circuits, 2024)