The OPAL experiment at the CERN LEP collider recently upgraded its silicon strip microvertex detector from one coordinate readout ( only) to two coordinate readout ( and z). This allows three dimensional vertex reconstruction and should improve lifetime measurements as well as b quark jet identi cation. This paper describes the new microvertex detector system with emphasis on the novel techniqu...

approved: Pavan Kumar Hanumolu Sensors find a variety of applications in portable electronics, automotive and biomedical solutions. The demand for low power and high dynamic range makes the design of digital sensor readout circuits quite challenging. Traditionally, these circuits are realized using amplifiers with passive feedback or precision analog com­ parators which are power hungry and not...