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An aggregated 36 Gb/s low power 4-lanes mixed NRZ/multi-tone transceiver for multi-drop bus (MDB) memory interfaces is designed and fabricated in 40nm CMOS technology. The proposed architecture achieves 1 pJ/bit power efficiency in the entire link (TX + RX) for an MDB channel with 45 dB loss at 3 GHz. The multi-tone nature of the proposed transceiver is employed to properly reduce crosstalk (Xtalk)...
Application of an algebraic coding to a multichannel parallel neural recording system is presented. The Walsh-Hadamard coding enables back-end hardware sharing between recording channels, using a linear and orthogonal superposition of the analog inputs. Moreover, this technique preserves the temporal information of the channels in contrast to the conventional architectures which use time-multiplexed...
An 8b 1.2 GS/s single-channel Successive Approximation Register (SAR) ADC is implemented in 32 nm CMOS, achieving 39.3 dB SNDR and a Figure-of-Merit (FoM) of 34 fJ per conversion step. High-speed operation is achieved by converting each sample with two alternate comparators clocked asynchronously and a redundant capacitive DAC with constant common mode to improve the accuracy of the comparator. A...
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