Results from the gigatracker prototypes: Two pixel front-end ASICs with sub-ns time resolution for the NA62 experiment

G. Aglieri Rinellaa,V. Carassitic,A. Ceccuccia,E. Cortinad ,J. Daguina,G. Dellacasab,M. Fiorinia,P. Jarrona,J. Kaplona,A. Klugea,F. Marchettoa,E. Martind ,A. Mapellia, f ,G. Mazzab,M. Morela,M. Noya,G. Nussled ,P. Petagnaa,L. Perktolda,F. Petruccic,e,A. Cotta Ramusinoc,P. Riedlera,A. Rivettib,R. Wheadonb aCERN, Geneva Switzerland,bINFN Torino, Italy,cINFN Ferrare, Italy,dUCL Louvain la Neuve, Belgium, eUniversity of Ferrara, f EPFL Lausanne, Switzerland