17-Bit, 16 Channel, 200kHz Digitizer Module
The VX4240 Waveform Digitizer/Analyzer Module is a printed circuit board assembly for use in a C or D size mainframe conforming to the VXIbus Specification. It combines a 12-bit, 10 MHz A/D converter with a RISC processor to provide a sophisticated measurement and analysis tool. Capable in capturing waveforms in the dc to 5 MHz frequency range, the VX4240 features extensive, on-card signal analysis and conditioning routines. All key parameters are programmable, and calibration is greatly simplified by semi-automatic calibration alignment routines.
In addition to collecting and transferring waveforms, the VX4240 can analyze and/or preprocess sample data before returning it to the system controller. More than 40 signal analysis routines available include such functions as fast Fourier transforms (FFT) using any of three different windows; signal to noise ratio; total harmonic distortion; maximum, minimum, average, and RMS values; rise and fall times; pulse widths; peak-to-peak voltages; overshoot and undershoot; mean and standard deviation; and period, frequency, and duty cycle.
Another unique feature of the VX4240 is its ability to directly set the desired input range. Eight of the ranges (0.5, 1, 2, 5, 10, 20, 50, and 100 Volts) are calibrated, but any range of less than 100 Volts may be set. If a range other than a calibrated range is selected, the VX4240 will pre-scale the signal usink a Tek-developed virtual ranging circuit. This circuit, in effect, adjusts the incoming signal so that 12-bit weighting is provided at any voltage within the VX4240's range, allowing it to outperform many 14-bit digitizers. The input can be programmed to be ac- or dc-coupled and single-ended or differential, with either 50-ohs or 1 MOhm input impedance.
- 制造商: Tektronix
- 模型: VX4240
