In this paper we present a programmable intraocular pressure sensor system implant integrated on a single CMOS chip. It contains on-chip micromechanical pressure sensor array, a temperature sensor, readout and calibration electronics, a µC-based digital control unit, and an RF-transponder. The transponder enables wireless data transmission and wireless power reception, thus making batteryless operation feasible. The chip has been fabricated in a 1.2 µm n-well CMOS process complemented by additional processing steps

An integrated GMR (Giant-Magnetic-Resistance) sensor is presented for 3600 angular measurements of rotating magnetic fields in automotive applications. The spin-valve GMR-layers are directly applied to a standard semiconductor 0.22,um CMOS process by vertical integration of the sensorbridges atop of active circuitry. The entire integrated anglesensor comprises 2 orthogonal magnetized GMR-bridges for sine and cosine signal measurements, and the subsequent signal conditioning circuitry. The entire angular sensor is designed to work in harsh automotive environment in a temperature range of -40°C to 150°C. The strength for best precision covers a wide range from 20 to 50 mT. The resulting angular information itself can be obtained by SPI-readout and calculating the arc-trigonometric function of the bridge signals with a resolution of > 13bit in an auxiliary microcontroller. After individual calibration to compensate for production spread an accuracy of typical 0.50 is achieved.I.

No abstract

No abstract

No abstract

No abstract

This contribution addresses the issue of low-voltage analog circuit design in CMOS technology. In particular, three areas of design will be discussed: switched-capacitor circuits, continuous-time circuits for low-frequency applications, and RF circuits. For each category examples will be given together with measured data

No abstract