- Turkish Journal of Electrical Engineering and Computer Science
- Vol: 24 Issue: 5
- A new CMOS logarithmic current generator
A new CMOS logarithmic current generator
Authors : Munir Al Absi, Karama Al Tamimi
Pages : 4517-4524
View : 7 | Download : 4
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :A new CMOS current-mode controllable low-voltage and low-power logarithmic function circuit is proposed. The circuit provides good dynamic range, controllable output, and reasonable accuracy and it is insensitive to temperature variations. The circuit operates with $\pm $0.5 V supply, consumes 0.3 $\mu $W, and has a -3 dB frequency of 2.4 MHz. The functionality of the proposed design is confirmed using Tanner T-spice with 0.35 $\mu $m CMOS process.Keywords : Logarithmic circuit, current-mode, subthreshold