Abstract In this paper the set analog converters for the multi channel analog processor is presented. This processor is used in high-energy cosmic-ray experiments involving ionization calorimeter is sited near Alma-Ata at a height of 3340 m above sea level, at the Tien Shan. Also the system front-end electronics with dynamic range 500000 : 1, worked put specialty for research of halo at the ionization calorimeter is cited