A CMOS Integrated Circuit for Silicon Strip Detector Readout

A system for reading out silicon strip detectors has been fabricated on a single integrated circuit. The chip consists of an array of 128 amplifiers with a single multiplexed output. Each amplifier channel has an input pad connected to a low power charge sensitive preamplifier together with a correlated double sampling circuit. The outputs of these channels are read out on a single differential analogue bus using a shift register to time multiplex the output signals. Particular attention has been paid to obtaining low noise and low power dissipation in the preamplifiers.