dB-linear V-I converter with tunable input and output range

作者: Quoc-Hoang Duong , Trung-Kien Nguyen , Sang-Gug Lee

DOI: 10.1109/MWSCAS.2003.1562253

关键词:

摘要: This paper proposed an ultra low-voltage low-power all CMOS exponential V-I converter with tunable input and output ranges. The Taylor series expansion is used for realizing the characteristic. simulations, based on a 0.25 mum process, show 20 dB linear current range 15 dB-linear linearity error less than plusmn 0.5 at 1.25V supply voltage. average power consumption 80 muW

参考文章(10)
Quoc-Hoang Duong, Hoang-Nam Duong, Trung-Kien Nguyen, Sang-Gug Lee, All CMOS current-mode exponential function generator international conference on advanced communication technology. ,vol. 1, pp. 528- 531 ,(2004) , 10.1109/ICACT.2004.1292926
A. Motamed, C. Hwang, M. Ismail, CMOS exponential current-to-voltage converter Electronics Letters. ,vol. 33, pp. 998- 1000 ,(1997) , 10.1049/EL:19970704
H Elwan, A El Adawi, M Ismail, HK Olsson, A Soliman, None, Digitally controlled dB-linear CMOS variable gain amplifier Electronics Letters. ,vol. 35, pp. 1725- 1727 ,(1999) , 10.1049/EL:19991193
Cheng-Chieh Chang, Shen-Iuan Liu, Current-mode pseudo-exponential circuit with tunable input range Electronics Letters. ,vol. 36, pp. 1335- 1336 ,(2000) , 10.1049/EL:20001003
Weihsing Liu, Cheng-Chieh Chang, Shen-Iuan Liu, Realisation of exponential V-I converter using composite NMOS transistors Electronics Letters. ,vol. 36, pp. 8- 10 ,(2000) , 10.1049/EL:20000051
K. Bult, H. Wallinga, A class of analog CMOS circuits based on the square-law characteristic of an MOS transistor in saturation IEEE Journal of Solid-State Circuits. ,vol. 22, pp. 357- 365 ,(1987) , 10.1109/JSSC.1987.1052733
R. Harjani, A low-power CMOS VGA for 50 Mb/s disk drive read channels IEEE Transactions on Circuits and Systems Ii: Analog and Digital Signal Processing. ,vol. 42, pp. 370- 376 ,(1995) , 10.1109/82.392312
Quoc-Hoang Duong, Trung-Kien Nguyen, Sang-Gug Lee, Low-voltage low-power high dB-linear CMOS exponential function generator using highly-linear V-I converter Proceedings of the 2003 international symposium on Low power electronics and design - ISLPED '03. pp. 349- 352 ,(2003) , 10.1145/871506.871593
K.M. Abdelfattah, A.M. Soliman, Variable gain amplifiers based on a new approximation method to realize the exponential function IEEE Transactions on Circuits and Systems I-regular Papers. ,vol. 49, pp. 1348- 1354 ,(2002) , 10.1109/TCSI.2002.802365