Journals / Turkish Journal of Electrical Engineering and Computer Sciences / 2016 / Cilt: 24 - Sayı: 5
A new CMOS logarithmic current generator
- Pages
- 4517–4524
- DOI
- —
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 ±0.5 V supply, consumes 0.3 µW, 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 µm CMOS process.