Highland Technology V680
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Contents |
Overview
The V680 is an 8-channel time-to-digital converter used to record the time of occurrence of eight independent electrical pulse inputs, each measured relative to a single, common reference input. Each input channel can time its event "hit" with 48.82-picosecond resolution and 48-bit dynamic range.
The module has provisions for adjustable input logic levels, selectable input edge polarity, and selectable termination.
The V680 employs a highly linear interpolation technique which requires a minimum of adjustments. Data is available within 200 ns of the completion of the measured time intervals, and the module may be cleared and rearmed in less than one microsecond. All features are switch selectable.
Features
- 8-channel, 48-bit, 48-picosecond resolution
- Measures events up to 6800 seconds before or after common trigger, or 0 to +13,700 seconds after trigger
- Adjustable trigger levels and edge polarity
- Usable as 9-channel independent time-stamper
- Fast readout available 200 ns after events
- Jitter typically below 40 ps RMS
- Ultrastable ovenized quartz crystal timebase
- Optional custom internal microengine
Specifications
| CONFORMANCE | ANSI/IEEE 1014-1987 VMEbus specification. VXIC specification, Rev. 1.4. |
| DEVICE TYPE | Register based slave: A16:D16:D08(EO). |
| PACKAGING | Single-width, 6U VME, B-size VXI module. |
| POWER REQUIRED | +5: 2.8A max; +12: 1.1A max at startup, 600mA max after warm-up;-12: 1.4A max at startup, 800mA after warm-up |
| INPUTS | One common reference input (T8) Eight individual event inputs (T0-T7) One external input (GATE) enables event channels Two inputs (AUX) support custom control logic One clock I/O (CLK). |
| INPUT LEVELS |
The thresholds of the event inputs are adjustable as a group in the range +-2.5 V. Their impedance (high-Z or 50 ohms) and polarity (rising or falling edge) can also be selected individually. The GATE input has a separate threshold level adjustment. Its impedance (high-Z or 50 ohms) and polarity (high or low) are also selectable. The AUX inputs are TTL-compatible. |
| OUTPUTS | AUX1 normally indicates module armed and ready to accept an event. |
| RESOLUTION | 48.828125 ps, equivalent to 20.48 GHz clock |
| RANGE | 48 bits (+-6871 s) for bipolar mode. |
| JITTER | <(75ps + 2 E-9 x delay) RMS |
| LINEARITY | +-0.25 LSB |
| TIMEBASE | Internal ovenized crystal oscillator. Accuracy 0.01 ppm/deg C; aging < 1 ppm/year. Internal phase-lock-loop allows utilization of an external 10 MHz timebase. |
| INDICATORS | LEDs indicate module access and acquisition/ readout mode status. |
| CONNECTORS | Standard SMB; optional LEMO |
Manuals, drivers, downloads & other resources
http://www.highlandtechnology.com/DSS/V680DS-O.html
See also
V180 16-channel AC power analysis module. Measures true RMS volts, amps, watts, KWH, power factor, harmonics. Available in PC/AT format as model AT180.
V340 8-channel programmable sine wave/PWM generator with optional BIST.
V346 8-channel arbitrary waveform generator
V350 Function Generator provides 4 analog + 4 digital waveform generators w/ 1 Mword memory per channel
V360 8-channel frequency measurement module measures engine speed in high-noise industrial environments
V365 8-channel tachometer module measures engine speed and provides overspeed underspeed blocks
V370 4-channel programmable arbitrary waveform generator provides simulation of low-frequency waveshapes.
V375 4-channel programmable arbitrary waveform generator, adds user waveform input, burst mode, 300 kHz bandwidth.
V380 8-channel strain-gauge/weighing module. Includes 24-bit ADC per channel, user-programming data filtering, tare, cal functions.
V385 8-channel strain-gauge/load cell module. Includes 24-bit ADC and individual remotely-sensed excitation supply per channel. Excitation switchable between 5 and 10 volts.
V420 8-channel resistance simulator module
V450 16-channel analog input module can acquire a wide range of DC voltages, including thermocouple temperatures.
V460 16-channel current source and analog measurement module. Measures voltage, resistance, and bridge-type sensors. Includes engineering-unit linearization for platinum RTDs and cryogenic temperature-sensing diodes.
V470 16-channel analog output module provides programmable isolated outputs as voltage outputs, thermocouple simulation, or RTD signal conditioners.
V550 8-channel LVDT/RVDT physical position sensor; integral transducer excitation and programmable filtering; 16-bit resolution.
V660 12-channel B-size VME time-interval measurement module
V720 6-Channel VME Electrical-to-Optical Converter
V730 6-Channel VME Optical-toElectrical Converter
V850 4-channel digital delay/pulse generator. Provides programmable delays up to 167 ms with 40-picosecond resolution; features agile delay/width programming and jitter < 25 ps (typ).
V851 6-channel version of V850; optional NIM outputs.
V860 multichannel pulse amplifier with risetime of 400 ps at 10V typical.
V880 precision programmable delay generator for timing systems; 1 ps resolution, 3 ps RMS jitter, electrical or optical outputs.
Dealers, trainers, support, maintenance & service centers
Highland Technology, Inc.
United States
California
San Francisco
P: (415) 551-1700
F: (415) 551-5129
http://www.highlandtechnology.com
info@highlandtechnology.com
