This paper presents the design and implementation of a fully integrated transimpedance amplifier (TIA) as the analog frontend receiver for Capacitive Micromachined Ultrasound Transducers (CMUTs) for ultrasound biomicroscope imaging application. The amplifier is designed to amplify the received signals from 17.5MHz to 52.5MHz with a center frequency of 35MHz. The TIA was fabricated in GF 0.18μm ...

This paper presents a very high-speed low-power 10bit pipelined ADC in a 90nm CMOS technology. A modified opamp-sharing technique is proposed which enables merging the S/H and first stage with optimum power saving. The new technique saves power by changing the bias currents of the input and output stages of the amplifier. Stage scaling and low power dynamic comparators are also utilized to redu...

The TRIUMF/ISAC Control system utilizes EPICS based on VME hardware with CANbus as the fieldbus. The Electronics Development group at TRIUMF/ISAC has previously developed VME modules [1] for the ISAC facility. This success led to development of several purpose built modules. Specifically for TITAN (TRIUMF’s Ion Trap for Atomic and Nuclear science) five VME modules were developed: a frequency ge...

In a superconducting radio-frequency particle accelerator, such as that being developed at Fermilab, it is often important to measure the amount of ionizing radiation emitted by particles due to Bremsstrahlung and other effects, in order to protect the accelerator from damage. Excessive exposure of machine components to this type of radiation can result in a variety of failures. Cryogenic loss ...

The problems of nding a longest common subsequence and a shortest common supersequence of a set of strings are well-known. They can be solved in polynomial time for two strings (in fact the problems are dual in this case), or for any xed number of strings, by dynamic programming. But both problems are NP-hard in general for an arbitrary number k of strings. Here we study the related problems of...