Marko Rocznik

ASIC for a resonant wireless pressure-sensing system for harsh environments achieving ±2% error between −40 and 150°C using Q-based temperature compensation

Pressure sensors used in automotive applications are subject to increasingly harsh environments such as acid containing gases in vehicle exhausts or exhaust gas recirculation. State-of-the-art gel protection for sensing elements and their electronics is reaching its limit. A circuits exposed aluminum bond pads are especially vulnerable to corrosion and failure. In response to these issues, we report an approach to eliminate bond pads and bonds between the sensor and IC altogether.

Undersampling approach for a capacitive micromachined yaw rate sensor

Micromachined inertial sensors offer new applications and opportunities for improved mobile devices. Especially the consumer market for micromechanical motion sensing through gyroscopes is widely emerging. The integration of inertial sensors within portable devices enforces suitable power management concepts to handle and achieve the tight power budget of the electronic devices. This paper presents a digital system approach to reduce the power consumption for a capacitive micromachined yaw rate sensor and enables an energy efficient frontend operation of the sensor.