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Hyperbit: Patented New Technology Increases DAC Resolution and Provides Improved Positioning Resolution.

From PI (Physik Instrumente) L.P.
 

 

Increasingly, DAC's are a limiting factor in nanopositioning resolution, especially in the latest millimeter-travel stages. A newly patented technology adds up to 10 bits of resolution to virtually any OEM DAC and popular PC analog I/O boards without hardware modifications and with full compatibility with legacy software. Applications range from scanned-probe microscopy and nanofabrication to advanced lithographies and optical tweezers.

Most motion devices are fundamentally analog. Since today's is a digital world, an analog drive command is usually generated by a digital-to-analog converter (DAC) chip someplace in the system (Figure 1). Besides being embedded in digital piezo controllers, DACs are commonly used to command analog servos, either from a card in the user's PC or OEM tool, or embedded into the servocontroller so computer interfaces like RS-232 can be provided.

Product Announcements
PI (Physik Instrumente) L.P. - Nanopositioning goes 24 Bit: Highest Precision:
Piezo system specialist PI is switching to a new generation of 24-bit resolution nanopositioning stage controllers that will allow <100 picometer command resolution even on the most advanced... (read more)
Microchip Technology, Inc. - 12-bit Quad Digital to Analog Converter w/EEPROM
Microchip Technology Inc., a leading provider of microcontroller and analog semiconductors, today announced the MCP4728 Digital-to-Analog Converter (DAC)—the industry's first 12-bit Quad DAC to... (read more)
PI (Physik Instrumente) L.P. - Digital Nanopositioning Controller Piezo Driver
E-710 digital piezo controllers are the most advanced and flexible controllers for piezo nanopositioning and scanning stages on the market. More on Piezo Drivers and Digital Controllers:... (read more)
PI (Physik Instrumente) L.P. - 2009 Piezo & Nanopositioning Book Released
Auburn, MA, Feb 2009 -- Nanopositioning & Piezo Technology Specialist PI, has issued the 2009 hard-cover catalog entitled "Piezo Nano Positioning Inspirations 2009". (read more)
ACCES I/O Products, Inc. - 12-Bit - Analog Output Cards
PCI-DA12-8 and PCI-DA12-16 are full-size cards that can be installed in long slots of PCI-Bus computers. They contain eight and sixteen independent double-buffered, digital-to-analog converters... (read more)
PI (Physik Instrumente) L.P. - Linear Piezo Motor: Sub-nm Precision, High Load
The novel, patented PiezoWalk® precision nanopositioning drive design combines long travel ranges (hundreds of millimeters) with high stiffness and high resolution (better than 0.1 nm). (read more)
PI (Physik Instrumente) L.P. - Piezo Z-Stage / XY- Piezo Stage for Microscopy
PI's new P-541 nanopositioning piezo z-stage & piezo XY-stage family provides fast multiaxis motion to 200x200 (100 µm in Z), resolution to 0.1 nanometers in an extremely low profile package. (read more)
Vitrek Corporation - Function/Arbitrary Waveform Generators-22 Models
Signal Generator's, Programmable 30MHz Arbitrary Waveform Generators, 15 MHz Function Generators/built-in Frequency counters, Audio Oscillators and RF Generators. Instek's SFG-830 is a Direct Digital... (read more)
Topics of Interest
The system controller is a critical component of any Scanning Probe Microscopy (SPM) system. Digital Instruments NanoScope Controllers have set the industry standard since its inception over a decade... (Read More)
5.3 Nyquist-Rate DACs Integrated Nyquist-Rate DACs Recall that for a DAC, the digital input word M in in Equation (5.1) is dimensionless, and the analog output signal N out has the same... (Read More)
7.1 BASIC PRINCIPLES Many measuring systems measure in analog form and all the physical quantities exist in analog form. Today, however, all the processing is done through computers which use... (Read More)
OVERVIEW One of the most important functions in signal processing is the conversion between analog and digital signals. In Section 1.1, the definition and distinction between analog and digital... (Read More)
3 SUCCESSIVE APPROXIMATIONS The successive approximations algorithm allows to find quickly a digital value by dichotomic search. By performing a sequence of comparisons, it converges to the desired... (Read More)