Title :
Design of novel chopper stabilized rail-to-rail operational amplifier
Author :
Xu Yong;Zhao Fei;Sun Zheng;Wu Yuanliang
Author_Institution :
Institute of Communication Engineering, PLA University of Science and Technology, Nanjing 210007, China
Abstract :
A chip design of novel chopper stabilized operational amplifier was presented, chopper-wave modulation and demodulation was used in this architecture, and its 1/f noise was decreased largely. To extend input common mode voltage range, a novel rail-to-rail differential amplifier was adapted in the input stage. The range of input common mode voltage was from zero to power supply, and it only consumed about 22μA current. When input signal frequency was 1 KHz, and the output signal THD was only 0.01%.
Keywords :
"Choppers (circuits)","Rail to rail amplifiers","Rail to rail inputs","Gain","Layout","CMOS integrated circuits"
Conference_Titel :
ASIC (ASICON), 2015 IEEE 11th International Conference on
Print_ISBN :
978-1-4799-8483-1
Electronic_ISBN :
2162-755X
DOI :
10.1109/ASICON.2015.7516988
