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Summary: two various prototypes of depleted monolithic cmos sensors with active pixels (dmaps) have been formed and tested, which have a fully synchronous drain-column readout architecture: lf-monopix and tj-monopix. These chips are a segment of research papers on a suitable implementation of cmos dmaps for the internal tracker hl-lhc atlas. Lf-monopix was developed using a 150nm cmos process on a canvas with excellent resistance (> 2kω), while tj-monopix was developed using a modified 180nm cmos process with a 1kω epilayer for attenuation. The chips differ in the design of the external interface, the bias circuit, the pixel pitch, the dimensions of the collecting electrode in terms of the pixel size (the design of the large and small electrodes also means the placement of the readout electronics inside such an electrode. Both chips were operational after thinning to 100% microns and concomitant processing of the second side in lf-monopix for exceptional volume depletion.The results of this activity include measurements of their leakage current, noise, threshold dispersion, response to minor ionizing particles and functionality in test beam campaigns.Also, the results of measurements after neutron irradiation with a dose of up to one\times10^ 15\,\mathrmn_eq/cm^2 what a nuisance for future developments.

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