Open Access0.5 V bulk ‐ driven CMOS fully differential current feedback operational amplifier
Author(s) -
Kumngern Montree,
Khateb Fabian,
Kulej Tomasz
Publication year - 2019
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.2018.5301
Subject(s) - operational amplifier , current feedback operational amplifier , operational transconductance amplifier , cmos , electrical engineering , op amp integrator , differential amplifier , operational amplifier applications , voltage , electronic engineering , computer science , amplifier , engineering
This study presents a new low‐voltage fully differential current feedback operational amplifier for ultra‐low‐voltage and low‐power analogue circuit applications. A bulk‐driven technique is used to reduce the supply voltage requirement and also provides a rail‐to‐rail input voltage common‐mode swing. The proposed circuit has been simulated using a TSMC 0.18 µm n‐well CMOS technology with a 0.5 V supply voltage. Simulation results show that the static power consumption of the proposed circuit is 4.7 µW. The proposed circuit has been used to realise fully differential integrators and fully low‐pass / band‐pass second‐order filters to express the performance of the new circuit.