A low power power sensor for optical communication
Journal
Asia-Pacific Microwave Conference Proceedings, APMC
Pages
4-6
Date Issued
2013
Author(s)
Shih, H.-Y.
Abstract
A power sensor operating at low dc power with cyclic logarithmic amplifier is proposed in this paper. The input signal passes RC low pass filter firstly, and then feeds to a cyclic logarithmic amplifier to have linear-in-dB output. DC offset and flicker noise are eliminated by using a chopper. It is fabricated by TSMC 0.18 um 1P6M CMOS process. For DC current input, the dynamic range is 31-dB, with ± 1.1 dB linearity. It consumes only 1.73 mW.
SDGs
Type
conference paper