Title :
The DELPHI Barrel Electromagnetic Calorimeter Flash ADC Based Digitizer
Author :
Crawley, H.B. ; Gorbics, M.S. ; Holland, C.E. ; Homer, J.F., Jr. ; McKay, R. ; Meyer, W.T. ; Rosenberg, E.I. ; Thomas, W.D.
Author_Institution :
Department of Physics and Ames Laboratory, USDOE Iowa State University, Ames, Iowa 50011
Abstract :
We describe the design and performance of an 8-bit Flash ADC based readout system developed for use on the cathode pads of the DELPHI High Density Projection Chamber (HPC). A dynamic range of 800:1 is obtained at input frequencies of 15 MHz using a bilinear voltage divider reference chain. Performance characteristics of the digitizing circuits for a CAMAC version of this readout system are presented. The design of a FASTBUS version is presented.
Keywords :
Buffer storage; CAMAC; Cache memory; Cathodes; Circuits; Dynamic range; Fastbus; Readout electronics; Sampling methods; Voltage;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1987.4337344
