A novel fully differential pixel concept for indirect TOF 3D measurement

Abstraef - Thk pnper describes the design of a CMOS sensor for reo1 fima three-dimensional meosuremmts based on multiple-pulse indirect Time Of Flight technique. A novel fully differentid active pixel architecture, which allows for the detection of very shon and low intensiry light pulses. is presented Circuit simulations allowed the design nppronch to be validated and the electrical performance of the circuit to be predicted. The photodiode and the required read-out and processing electronics are sveeessfully implemented in II 80 x 80pmz pixel with nn upectedpower consumption of about 1 OOp W. A preliminary test-chip, consisting of 16 x 1 I-pixel 41ray with column read-out and digital conlml logic has been designed and fabricated in a 0.35pm, 3.36 CMOS fednology.