0.6-V, Sub-nW, second-order lowpass filters using flipped voltage followers. - Chutham Sawigun; Prajuab Pawarangkoon (APCCAS, 2016)

A Flipped Voltage Follower Second-Order Bandpass Filter. - Surachoke Thanapitak; Prajuab Pawarangkoon; Chutham Sawigun (J. Circuits Syst. Comput., 2017)

A Nanopower 4th-Order Chebyshev Lowpass Filter For ECG Detection System. - Prajuab Pawarangkoon (APCCAS, 2018)

A Compact Bulk-Driven Four-Quadrant Analog Multiplier in Weak Inversion. - Prajuab Pawarangkoon; Chutham Sawigun (APCCAS, 2018)

A Subthreshold Folded-Cascode Lowpass Biquad for Biopotential Acquisition. - Khanittha Kaewdang; Prajuab Pawarangkoon (APCCAS, 2019)

A 0.672 μW, 2 μVrms CMOS Current-Feeback ECG Pre-amplifier With 77 dB CMRR. - Panlop Pantuprecharat; Suphawat Masaree; Prajuab Pawarangkoon; Chutham Sawigun (APCCAS, 2019)

A 63 nW, 250 Hz, 70 dB-DR, Subthreshold CMOS Follower-Based LPF for ECG Detection. - Prajuab Pawarangkoon; Chutham Sawigun (APCCAS, 2019)

A 38.4 nW, 1.2 V, 250-Hz, 2nd-Order gm - C LPF With Degenerative SCP Transconductors Achieving 800-mVPP Input Range and 82.1- μVrms IRN for ECG Acquisition. - Surachoke Thanapitak; Prajuab Pawarangkoon; Wanlop Surakampontorn; Rafidah Ahmad; Ruhaifi Abdullah Zawawi; Asrulnizam Bin Abd Manaf; Suriya Adirek; Chaiyan Chanapromma (IEEE Trans. Circuits Syst. II Express Briefs, 2025)

A Nanopower Folded-Cascode EEG Lowpass Filter. - Surachoke Thanapitak; Khanittha Kaewdang; Xiao Liu 001; Prajuab Pawarangkoon (IEEE Trans. Circuits Syst. II Express Briefs, 2025)

A Nanopower EEG Low-Pass Filter Using Current-Sharing Vertical Differential Pairs. - Prajuab Pawarangkoon; Rafidah Ahmad; Ruhaifi Abdullah Zawawi; Asrulnizam Abd Manaf; Wanlop Surakampontorn; Surachoke Thanapitak (IEEE Trans. Very Large Scale Integr. Syst., 2025)