A power-efficient biomimetic intra-branch dendritic adder

In neurons, the essence of nonlinear dendritic computations cannot be neglected as some neural behaviors depend heavily on these functions. In this paper, a power-efficient biomimetic intra-branch dendritic adder is introduced to emulate dendritic computations within the branches of the dendritic arbor. The proposed adder is implemented using 45nm CMOS technology. While exhibiting nonlinear behavior to post-synaptic input potentials, our simulation results shows that the adder consumes 2.95X and 10.8X less power, in processing of EPSPs and IPSPs, respectively, compared to the traditional adder used extensively in the BioRC project when implemented in the same technology.