The DQ2722MA is a full digital 2 phase stepper driver based on DSP control.
The drive voltage is from 110V to 220VAC. It is designed for use with the 2 phase hybrid stepper motor with 86mm to 130mm outside diameter, regulated phase current 1.0A to 9.8A. The circuit that it adopts is similar to the circuit of servo control which enables the motor run smoothly without noise and vibration. The highest micro step is 60000ppr.