Title :
A Noble Track-and-Hold Amplifier with 10-b 120-MS/s
Author :
Seon, Jong-Kug ; Nam, Kyung-Hoon ; Kang, Sung-Hee ; Bae, Kyu-Sung ; Kim, Jong-Bae
Author_Institution :
LG R&D Center, Seoul
Abstract :
A novel track-and-hold (T&H) employing an operational transconductance amplifier (OTA) with two cross-coupled differential pairs (CCDPs) is proposed for high-accuracy and high-frequency applications. The T&H has a simple architecture requiring smaller capacitors and fewer switches and offers higher speed, lower distortion, and lower power dissipation than its op-amp based counterparts. The chip implemented in 0.18 um CMOS process operates from a single 1.8 V supply and achieves more than 10-bits precision for sampling rate in excess of 120 MS/s.
Keywords :
CMOS integrated circuits; operational amplifiers; CMOS process; cross-coupled differential pairs; high-accuracy application; high-frequency application; lower power dissipation; operational transconductance amplifier; size 0.18 mum; track-and-hold amplifier; voltage 1.8 V; word length 10 bit; Bandwidth; CMOS technology; Capacitors; Circuits; Communication switching; Operational amplifiers; Power dissipation; Sampling methods; Switches; Transconductance;
Conference_Titel :
Integrated Circuits, 2007. ISIC '07. International Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-0797-2
Electronic_ISBN :
978-1-4244-0797-2
DOI :
10.1109/ISICIR.2007.4441854
