A Galvanic Isolated Amplifier Based on CMOS Integrated Hall-Effect Sensors

An Immunoassay Platform Based on CMOS Hall Sensors

We describe an immunoassay utilizing standard CMOS technology. An array of Hall sensors is used to detect the magnetic beads that serve as the assay signal. Electrical and magnetic modulation is employed to improve the sensitivity of the sensors. The devices receive two post-processing steps to improve sensitivity and biocompatibility. We have fabricated prototype devices using a 0.25-μm BiCMOS...

Fully Integrated CMOS Power Amplifier

Design Considerations for CMOS - Integrated Hall - effect Magnetic

Optimum Design Rules for CMOS Hall Sensors

This manuscript analyzes the effects of design parameters, such as aspect ratio, doping concentration and bias, on the performance of a general CMOS Hall sensor, with insight on current-related sensitivity, power consumption, and bandwidth. The article focuses on rectangular-shaped Hall probes since this is the most general geometry leading to shape-independent results. The devices are analyzed...

Cmos 3-axis Accelerometers with Integrated Amplifier

Design, fabrication, and testing of multi-axis CMOS piezoresistive accelerometers is described. Vertical axis accelerometers have been fabricated in multiple processes using a production tested maskless bulk etch step. Horizontal axis accelerometers have also been fabricated and require an additional assembly step. Acceleration sensing in based on the piezoresistive behavior of the gate polysil...