  In this work, we explore the design of an integrated, low power single chip
multi-channel Proportional-Integral-Derivative (PID) controller for emerging
miniature robotics, that includes N inputs and N corresponding outputs thereby
resulting in N parallel channels in the control system. It includes analog
front-end (AFE) and analog PID controllers for PID parameter tuning based on
PSO algorithm. The AFE incorporates adaptive biasing to ensure low power. The
PSO is optimized with respect to tuning precision, power and area. This makes
it attractive for real-time tuning of multiple miniaturized robotic devices
with a single PSO tuning algorithm block assigned for the task. For simulation
and testing purposes, we take N as 3 with the channels being defined by their
application-ends or plants, namely: dc motor, temperature sensor and gyroscope.
