Title :
An integrated buffer with reduced distortion
Author :
Rongbin Hu ; Yu Wen ; Xiaoying Zhang
Author_Institution :
Sci. & Technol. on Analog Integrated Circuit Lab., Chongqing, China
Abstract :
A practical low distortion integrated buffer (LDB) is introduced, which includes an operational transconductance amplifier (OTA), a common-emitter amplifier (CEA), and a load circuit (LOAD). Additionally, a common-base amplifier (CBA) is added to improve the symmetry of the buffer. The simulation shows that the proposed buffer has a -3dB bandwidth of 2.5GHz with power consumption of only 20mW. The 8-bit analog-to-digital ADC including the buffer can sample an analog signal up to 1.5GHz with a sampling rate greater than 2GHz.
Keywords :
UHF amplifiers; analogue-digital conversion; buffer circuits; distortion; operational amplifiers; CBA; CEA; LDB; LOAD; OTA; analog-to-digital ADC; common-base amplifier; common-emitter amplifier; frequency 2.5 GHz; load circuit; low distortion integrated buffer; operational transconductance amplifier; power consumption; reduced distortion; word length 8 bit; CMOS integrated circuits; Distortion; ADC; IC; OTA; low distortion buffer;
Conference_Titel :
Electronics, Computer and Applications, 2014 IEEE Workshop on
Conference_Location :
Ottawa, ON
DOI :
10.1109/IWECA.2014.6845546
