The LEGEND experiment is a future large-scale experiment that will search for neutrinoless double beta decay (0νββ 0\nu\beta\beta ) in the isotope 76 ^{76} Ge using high purity germanium detectors. Its observation would establish lepton number violation, provide information on the neutrino mass and open a window to understand matter dominance in our universe. The signal readout is one of the most important components of a 0νββ 0\nu\beta\beta experiment since it facilitates the conversion of charges produced in the detectors into appropriately shaped voltage signals. Current 0νββ 0\nu\beta\beta experiments such as GERDA and MAJORANA use a readout solution consisting of several discrete electronic components. This poster focuses on our research at the Max Planck Institute for Physics and TUM where we are developing a signal amplifier based on application specific integrated circuit (ASIC) technology provided by XGLab that allows us to combine all relevant components in a single low-mass chip.