Seung-Tak RYU


A 180-µW, 120-MHz, Fourth Order Low-Pass Bessel Filter Based on FVF Biquad Structure
Hundo SHIN Seung-Tak RYU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/05/01
Vol. E95-C  No. 5  pp. 949-957
Type of Manuscript:  PAPER
Category: Electronic Circuits
Keyword: 
flipped voltage follower (FVF)source follower (SF)Gm-C filterbiquad structurepower/BW ratio (PBWR)Bessel filter
 Summary | Full Text:PDF(2.9MB)

A Single-Supply 84 dB DR Audio-Band ADC for Compact Digital Microphones
Huy-Binh LE Sang-Gug LEE Seung-Tak RYU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/01/01
Vol. E95-C  No. 1  pp. 130-136
Type of Manuscript:  PAPER
Category: Electronic Circuits
Keyword: 
electret capacitor microphone (ECM)digital microphoneaudio ADC
 Summary | Full Text:PDF(1MB)

Yield-Ensuring DAC-Embedded Opamp Design Based on Accurate Behavioral Model Development
Yeong-Shin JANG Hoai-Nam NGUYEN Seung-Tak RYU Sang-Gug LEE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/06/01
Vol. E93-C  No. 6  pp. 935-937
Type of Manuscript:  LETTER
Category: Electronic Circuits
Keyword: 
DACDAC-embeddedbehavioral modelyield
 Summary | Full Text:PDF(304.3KB)

A Fully On-Chip Gm-Opamp-RC Based Preamplifier for Electret Condenser Microphones
Huy-Binh LE Seung-Tak RYU Sang-Gug LEE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2009/04/01
Vol. E92-C  No. 4  pp. 587-588
Type of Manuscript:  LETTER
Category: Electronic Circuits
Keyword: 
electret microphonepreamplifierswitched-capacitorsigma-delta
 Summary | Full Text:PDF(195.8KB)