A Flexible, Low-noise Charge-sensitive Amplifier for Particle Tracking Application

K. Kasiński, R. Kleczek (AGH Univ. of Science and Techn., Poland)

This paper presents characteristics and layout of an integrated charge-sensitive amplifier for the multichannel front-end electronics. The design constraints and requirements are based on the Compressed Baryonic Matter experiment two detector layers: Silicon Tracing System working with silicon strip detectors and the Muon Chamber working with gas detectors. The amplifier is designed for low-power (<10 mW/channel) and low-noise operation within the operating conditions of two different detectors. The circuit also implements solutions for handling mismatch, detector failure, and corner conditions. The emphasis is also put on the power rail design and analysis of leakage current impact on noise.