MODELS OF ANALOG VLSI LOW-NOISE MULTIPLIERS

Abstract

The class of Steerable Localized Injection Multipliers (SLIM) is known to be of high speed with least self-noise among all known analog multiplication techniques, and to be highly suited for VLSI implementation. SLIM design with predictable bounds on multiplication error due to intrinsic circuit noise requires valid noise generation modeling. Two models of SLIM noise sourcing are formulated: a small-signal model and a largesignal model. These noise models were simulated using SPICE to determine the power spectral density of SLIM output noise. The output power spectral density was shown to be flat over the frequency range up to 100MHZ, in agreement with prior experimental results.