Title :
A 6-Bit, 1.2-GS/s ADC with wideband THA in 0.13-μm CMOS
Author :
Chen, Bo-Wei ; Hsien, Szu-Kang ; Chiang, Cheng-Shiang ; Juang, Kai-Cheung
Author_Institution :
Syst.-on-Chip Technol. Center, Ind. Technol. Res. Inst., Hsinchu
Abstract :
This paper presents a 6-bit, 1.2-GSample/s flash ADC with new proposed wideband track-and-hold amplifier (THA) fabricated in TSMC 0.13-mum CMOS technology. The wideband THA employs a front-end super source follower (SSF), which has a very low input capacitance of only 0.2-pf, to boost analog bandwidth without any on-chip passive inductor. Moreover, the flatness of the data bandwidth of ADC will improve. The SSF can also relax the power consumption of the voltage buffer in the THA.
Keywords :
CMOS integrated circuits; analogue-digital conversion; sample and hold circuits; wideband amplifiers; TSMC CMOS technology; flash ADC; front-end super source follower; power consumption; size 0.13 mum; storage capacity 6 bit; voltage buffer; wideband track-and-hold amplifier; Bandwidth; CMOS technology; Circuits; Clocks; Energy consumption; Inductors; Paper technology; Preamplifiers; Voltage; Wideband;
Conference_Titel :
Solid-State Circuits Conference, 2008. A-SSCC '08. IEEE Asian
Conference_Location :
Fukuoka
Print_ISBN :
978-1-4244-2604-1
Electronic_ISBN :
978-1-4244-2605-8
DOI :
10.1109/ASSCC.2008.4708807
