Thanks to its high output power, the digital single-channel controller E-709.CHG from Physik Instrumente provides highly dynamic and nanometer-precise operation of piezo-based stages with high stiffness and electrical capacitance. These positioning systems are mainly used in applications that require high throughput, e.g. in microscopy. The digital technology of the controller increases its performance additionally. Digital control algorithms optimize the settling behavior and minimize linear deviation. Motion and servo-control parameters can easily be set with software commands. The piezo controller is commanded via digital SPI, USB and RS-232 interfaces. In addition, the device is equipped with a high-bandwidth analog interface for target values or sensor signals. The analog output can be configured for the control of external amplifiers or position values. The software package comprises the powerful user software PIMikroMove and NanoCapture for quick start-up, as well as LabVIEW drivers and shared libraries for Windows and Linux. The systems can also be controlled with the software platforms µManager, MetaMorph or MATLAB.