dE/dx Electronics for Mark II Experiment at SLAC

This paper describes a 100 MHz pulse digitizer for dE/dx measurements on the MARK II drift chamber at SLAC. The electronics provides the read-out of the detector's 5832 sense wires, organized in 336 wires/FASTBUS crate. The system is based on a 16-channel FASTBUS module. The basic element of the module is the TRW 6-bit Flash-ADC.