Title :
Low-voltage/low-power transconductors with extremely large dynamic range and low distortion
Author :
van der Woerd, A.C. ; Reitsma, G.P. ; van Roermund, Arthur H. M.
Author_Institution :
Dept. of Electr. Eng., Delft Univ. of Technol.
fDate :
9/11/1997 12:00:00 AM
Abstract :
A new class of configurations for linear low-voltage/low-power transconductors is presented. With a single supply voltage of 1.0 V, a dynamic range of >100 dB within the audio bandwidth is feasible. The linearity exceeds 99% within an input voltage between -9 and +9 times the thermal voltage. Owing to class-AB operation the quiescent power consumption is extremely low. A special biasing technique, called `indirect biasing´ ensures stable biasing and large PSSR
Keywords :
amplifiers; circuit optimisation; harmonic distortion; linear network synthesis; THD; audio bandwidth; class-AB operation; extremely large dynamic range; indirect biasing; large PSSR; linear low-voltage/low-power transconductors; linearity; low distortion; quiescent power consumption; single supply voltage; stable biasing; thermal voltage;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19971075
