Title :
A high speed, low noise ASIC preamplifier for silicon strip detectors
Author_Institution :
Fermi Nat. Accel. Lab., Batavia, IL, USA
fDate :
4/1/1990 12:00:00 AM
Abstract :
A first-version Tektronix Quickchip semicustom ASIC (application-specific integrated circuit) preamplifier for silicon strip detectors was reported previously (see D. Christian et. al. 1988). An improved version, QPA02, has been designed. It incorporates laser trimming of nichrome resistors as a means of compensating for chip resistance process variations, which affected the response of the first version. This allows chips with randomly varying resistance values to be trimmed to a standard output pulse shape. The QPA02 also has improved performance specifications. The design philosophy and specifications of the QPA02 are described. The QPA02 has been tested and demonstrated to be an effective silicon strip amplifier for high-rate applications, performing as modeled
Keywords :
nuclear electronics; semiconductor counters; QPA02; chip resistance process variations; effective Si strip amplifiers; first-version Tektronix Quickchip semicustom ASIC; high-rate applications; laser trimming; low noise ASIC preamplifier; nichrome resistors; standard output pulse shape; Application specific integrated circuits; Detectors; Integrated circuit noise; Laser noise; Preamplifiers; Pulse amplifiers; Pulse shaping methods; Resistors; Silicon; Strips;
Journal_Title :
Nuclear Science, IEEE Transactions on
