In this paper a low-power current-mode RMS-to-DC converter is proposed. The converter includes two-quadrant squarer/divider and the first-order low-pass filter cell, both of them use MOS translinear loops. The RMS-to-DC converter has low power consumption (< 0.75μW), low supply voltage (0.8 V), wide input range (from 40 nA to 500 nA), low relative error (< 3 %), and low circuit complexity. Comparing the proposed circuit with two other current-mode circuits shows that the former outperforms the latters in terms of power dissipation, supply voltage, and complexity. Simulation results by HSPICE show high performance of the circuit and confirm the validity of the proposed design technique.
DANESH, MOHAMMAD HADI; DEHDAST, MAHYAR; AREKHI, ABDOLGHANI; and FARD, AMIN EMAMI
"A CMOS CURRENT-MODE LOW POWER RMS-TO-DC CONVERTER,"
International Journal of Electronics and Electical Engineering: Vol. 3:
3, Article 13.
Available at: https://www.interscience.in/ijeee/vol3/iss3/13