Title :
Pseudo-exponential current-to-voltage converter
Author :
Quoc-Hoang Duong ; Hoang-Nam Duong ; Trung-Kien Nguyen ; Sang-Gug Lee
Author_Institution :
Information and Communication University
Abstract :
This paper proposed a "pseudoexponential" current-to-voltage converter with tunable input dynamic ranges. The proposed circuit uses CMOS transistors in saturation region. The feasibility of this circuit was verified through simulations at 1.5 V supply voltage, using 0.25 μm CMOS process. The results show 30 dB range with the error less than ± 0.5 dB. The proposed circuit can be used for the design of an extremely low-voltage and low-power variable gain amplifier (VGA) and automatic gain control (AGC).
Keywords :
Biomedical equipment; CMOS process; Character generation; Circuit simulation; Dynamic range; Gain control; Signal design; Tunable circuits and devices; Very large scale integration; Voltage;
Conference_Titel :
Advanced Communication Technology, 2004. The 6th International Conference on
Conference_Location :
Phoenix Park, Korea
Print_ISBN :
89-5519-119-7
DOI :
10.1109/ICACT.2004.1292927
