The Design of a Fully Differential Capacitive Pressure Sensor with Unbalanced Parasitic Input Capacitances in 130nm CMOS Technology

B. T. Bradford, W. Krautschneider, D. Schroeder

2013

Abstract

A switched capacitor amplifier for measuring absolute pressure with a micro-machined capacitive pressure sensor using correlated double sampling has been designed in 130nm CMOS technology. The switched capacitor amplifier design uses a combination of correlated double sampling, input offset cancellation, and output offset cancellation to help reject 1f noise and DC offset mismatch. A method for sizing the operational transconductance amplifier (OTA) components according to the system noise, accuracy, and bandwidth requirements is presented.

Paper Citation

in Harvard Style

T. Bradford B., Krautschneider W. and Schroeder D. (2013). The Design of a Fully Differential Capacitive Pressure Sensor with Unbalanced Parasitic Input Capacitances in 130nm CMOS Technology . In Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2013) ISBN 978-989-8565-34-1, pages 137-142. DOI: 10.5220/0004237801370142

in Bibtex Style

@conference{biodevices13,
author={B. T. Bradford and W. Krautschneider and D. Schroeder},
title={The Design of a Fully Differential Capacitive Pressure Sensor with Unbalanced Parasitic Input Capacitances in 130nm CMOS Technology},
booktitle={Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2013)},
year={2013},
pages={137-142},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004237801370142},
isbn={978-989-8565-34-1},
}

in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2013)
TI - The Design of a Fully Differential Capacitive Pressure Sensor with Unbalanced Parasitic Input Capacitances in 130nm CMOS Technology
SN - 978-989-8565-34-1
AU - T. Bradford B.
AU - Krautschneider W.
AU - Schroeder D.
PY - 2013
SP - 137
EP - 142
DO - 10.5220/0004237801370142