Open Access1.2 V CMOS temperature compensated logarithmic converter based on translinear circuit
Author(s) -
Bai Chunfeng,
Wu Jianhui
Publication year - 2016
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2016.1626
Subject(s) - logarithm , cmos , temperature coefficient , electronic engineering , atmospheric temperature range , electrical engineering , materials science , physics , mathematics , engineering , mathematical analysis , meteorology
With the help of proposed translinear circuit, intrinsic temperature coefficient of logarithmic converter is compensated by that of a proportional‐to‐absolute‐temperature current source in bandgap reference, which contributes to the proposed fully integrated logarithmic converter. Using a 0.13 μm CMOS technology with 1.2 V single supply, the proposed logarithmic converter exhibits less than 350 ppm temperature coefficient with a 0.5–1.2 V input range.