Design of Low Power Low Cost True RMS-to-DC Converter

This paper presents a new true RMS-to-DC converter based on a square-root-domain squarer/divider. The circuit employs MOSFETs that operate in strong inverted saturation region performing electronically simulated translinear loop. The converter features low fabrication cost, immune from body effect, two-quadrant input current. The RMS-to-DC Converter circuits are realized using TSMC 0.35μm CMOS technology.