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  • E-709 Controller
Oct 2010
PI (Physik Instrumente) L.P., Air Bearings and Piezo Precision MotionRequest Info
AUBURN, Mass., Oct. 1, 2010 — PI (Physik Instrumente) L.P. has introduced the E-709 piezo nanopositioning controller that provides digital functionality for the price of analog, in the size of a paperback book.

Fifth-order polynomial digital linearization ensures higher accuracy than analog, and two notch filters allow faster response and piezo operation at higher frequencies. A fast servo update rate ensures responsiveness. The digital-to-analog converter in-the-loop architecture guarantees positional stability.

The system is supplied with USB, RS-232, real-time analog and transistor-transistor logic high-speed interfaces, and with easy-to-use set-up software for remote access and servo tuning. It requires no trimpots. Extensive, well-documented, interface-independent software support includes Windows, Linux and LabView.

The controller was designed for piezo actuators and nanopositioning stages with low-cost piezoresistive sensors and high-performance capacitive sensors. The digital servo technology enables higher linearity and precision and provides more control options (changing parameters on-the-fly, software-optimized servo tuning) and comfortable operation. The system also includes a piezo power amplifier (driver). No additional hardware is required to operate the piezo mechanics.

The company provides the full functionality of its comprehensive software packages free of charge. The E-709 also can be used for applications providing analog control signals, such as microscopy. In addition to two digital interfaces, a standard broadband analog input is installed.

Applications include biotechnology, nanotechnology, semiconductor technology, lithography and optics.


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A physical variable that is proportionally similar to another variable over a specified range. An analog recording contains data that is similar to the source.
Denoting the use of binary notation; i.e., the representation of data by bits (1 or 0).
The use of atoms, molecules and molecular-scale structures to enhance existing technology and develop new materials and devices. The goal of this technology is to manipulate atomic and molecular particles to create devices that are thousands of times smaller and faster than those of the current microtechnologies.
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