The range of applications of this chip typically covers nuclear physics experiments, but can naturally extend beyond these to reach other domains such as particle physics, medical imaging, astrophysics, etc. A new multi-channel ASIC called FEANICS (Front-End Adaptive gaiN Integrated CircuitS) based on a floating-point Charge Sensitive Amplifier FPCSA architecture. This architecture is based on automatic gain switching during the rise time of the pulse. By default, the CSA is configured in a high gain mode. If the charge exceeds a specific value, the CSA automatically switches to a low gain value. Thanks to this basic principle, one can reach high dynamic range and high energy resolution.