Off-the-shelf motion chips, also called motion processors, have always had an advantage of size and power consumption over their board or module-based cousins. But many people perceive motion chips as lower in performance. Recent developments go a long way toward dispelling that idea.

An example is the MC2140 motion processor from Performance Motion Devices. This off-the-shelf motion processor includes a standard PID servoloop but adds velocity and acceleration feedforward, integral windup limitation, motor bias offset, output scaling, and a programmable derivative time base. This product demonstrates that servocontrol features previously reserved for board-level systems have made their way into the world of motion chips.