Open AccessNew current‐mode RMS‐to‐DC converters and four‐quadrant multiplier/divider based on VDTA
Author(s) -
Petrović Predrag Bosko
Publication year - 2020
Publication title -
iet circuits, devices and systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.251
H-Index - 49
eISSN - 1751-8598
pISSN - 1751-858X
DOI - 10.1049/iet-cds.2019.0373
Subject(s) - converters , transconductance , quadrant (abdomen) , electrical engineering , multiplier (economics) , voltage , electronic engineering , amplifier , operational transconductance amplifier , physics , computer science , engineering , cmos , differential amplifier , transistor , medicine , pathology , economics , macroeconomics
The study presents two new realisations of bipolar two‐quadrant implicit RMS‐to‐DC converter and four‐quadrant multiplier/divider employing two VDTAs (voltage differential transconductance amplifier) and grounded passive elements. The converters provide the operating frequency of up to 10 MHz with increased precision in the processing of input currents signals, when compared to known realisations. Errors related to the signal processing and errors bound were investigated and presented in this study. The results obtained from the simulation tests in HSPICE and the experimentally realised models of the converters showed a good match with the theoretical anticipation. The maximum power consumption of the converters is 2.82 mW, at ±1.2 V supply voltages.