Characterization of the AGIPD1.1 readout chip and improvements with respect to AGIPD1.0. - Mezza, D.; Allahgholi, A.; Becker, J.; Delfs, A.; Dinapoli, R.; Goettlicher, P.; Graafsma, H.; Greiffenberg, D.; Hirsemann, H.; Klyuev, A.; Kuhn, M.; Lange, S.; et al. (Nuclear Instruments & Methods in Physics Research Section A, 2019)