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1.1 TMACS/mW Fine-Grained Stochastic Resonant Charge-Recycling Array Processor

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3 Author(s)
Karakiewicz, R. ; Dept. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON, Canada ; Genov, R. ; Cauwenberghs, G.

We present a resonant adiabatic mixed-signal 128 × 256 array processor that achieves the energy efficiency of 1.1 TMACS (1012 multiply accumulates per second) per mW of power operating from a 1.6 V DC supply. The 1.9 μm × 9 μm 3T NMOS unit cell with a single-wire pitch multiplexed bit/compute line provides charge-conserving 1b-1b multiplication and single-node charge-domain analog accumulation. A stochastic data modulation scheme minimizes on-chip capacitance variability maintaining sinusoidal clock oscillations near resonance.

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Sensors Journal, IEEE  (Volume:12 ,  Issue: 4 )