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@inproceedings{Hu:2011:10.1109/ISCAS.2011.5937831,
author = {Hu, Y and Liu, Y and Constandinou, TG and Toumazou, C},
doi = {10.1109/ISCAS.2011.5937831},
pages = {1387--1390},
publisher = {IEEE},
title = {A 5s-Time-Constant Temperature-Stable Integrator for a Tuneable PID Controller in LOC Applications},
url = {http://dx.doi.org/10.1109/ISCAS.2011.5937831},
year = {2011}
}

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TY  - CPAPER
AB  - In this paper, we present a novel, ultra-long-time-constant analog integrator circuit as part of an analogue signal processing block. By employing transconductance reduction techniques a time constant of up to 5s is achievable using only a 35pF capacitor. This is achieved by introducing a R-2R current divider network in the feedback loop, additionally allowing the transconductance to be digitally-tuned within a range of 0.2 to 5 seconds to 4-bit resolution. Furthermore, through internal compensation, the clockless integrator achieves a temperature dependance of under 1.2\% over the 0$^oC$ to 100$^oC$ range.
AU  - Hu,Y
AU  - Liu,Y
AU  - Constandinou,TG
AU  - Toumazou,C
DO  - 10.1109/ISCAS.2011.5937831
EP  - 1390
PB  - IEEE
PY  - 2011///
SP  - 1387
TI  - A 5s-Time-Constant Temperature-Stable Integrator for a Tuneable PID Controller in LOC Applications
UR  - http://dx.doi.org/10.1109/ISCAS.2011.5937831
UR  - http://ieeexplore.ieee.org/
UR  - http://hdl.handle.net/10044/1/6897
ER  -

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