This paper presents a new CMOS active pixel sensor specifically for digital X-ray imagers. The proposed DPS architecture includes a novel lossless A/D conversion scheme, a dark currentâ€¦ (More)

A technique for low-distortion and digitally programmable continuous-time filtering is proposed. Digital controllability is based on an inherent linear MOST-only current division technique. Thisâ€¦ (More)

A simple parallel algorithm for the evaluation of polynomials written in the Chebyshev form is introduced. By this method only 2 âŒˆlog2(pâˆ’2)âŒ‰+ âŒˆlog2 pâŒ‰+4 âŒˆN/pâŒ‰âˆ’7 steps on p processors are needed toâ€¦ (More)

In this paper a continuous-time 4<sup>th</sup>order Butterworth lowpass filter based on current-mode processing is presented for applications over the video frequency range. Using a very low-cost 2.4â€¦ (More)

This paper presents a new low-power compact CMOS active pixel circuit specifically optimized for full-field digital mammography. The proposed digital pixel sensor (DPS) architecture includesâ€¦ (More)

This paper presents a pseudo-differential continuous time transconductor for applications in low-voltage systems over the very high frequency range. By using a 0.8 µm CMOS process, theâ€¦ (More)