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A 12-bit 210-MS/s 2-channel time-interleaved analog-to-digital converter (ADC) employing a pipelined-SAR architecture for low-power and high-speed application is presented. The proposed ADC is partitioned into 3 stages with a passive residue transfer technique between the 1st and 2nd stages for power saving and active residue amplification between the 2nd and 3rd stages for noise consideration. Furthermore,...
A 210 MS/s dual-channel 12-bit analog-to-digital converter (ADC) employing a pipelined successive approximation (SAR) architecture is presented. The ADC is partitioned into 3 stages with passive residue transferring between the 1st and the 2nd stages and active residue amplification between the 2nd and the 3rd stages. The ADC consumes 5.3 mW from a 1-V supply and achieves an SNDR of 63.48 dB at a...
The thin oxide and short channel of the MOS transistor induce significant leakage currents in nanoscale CMOS technologies. In this paper, the effect arisen from the leakage currents, including gate direct-tunneling and subthreshold conduction, are discussed in a sample-and-hold (S/H) circuit. A model of the worst leakage error is proposed based on a small-signal circuit model. Based on the proposed...
A spread spectrum clock generator (SSCG) based on an offset phase-locked loop (OPLL) for the Serial AT Attachment 3 (SATA-III) is presented in this paper. The SSCG can be applied to many systems due to its characteristic of spreading the energy of frequency harmonics and reducing the radiated power per unit bandwidth. In the proposed architecture, a low-frequency spread spectrum signal is synthesized...
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