Spectral Dynamics, Inc. 8 Channel VXI Data Acquisition Module VIDAS VX2805B

The Model VX2805B is a completely integrated 8 channel data recording VXI module. Each channel includes a bridge signal conditioner, a low pass filter, a 16-bit 5M Samples/sec/ch. ADC, and 16M Samples of DRAM storage per channel. DRAM may be divided into 2, 4 or 8 segments for multiple event recording. Built-in channel conditioning is suitable for strain gauge bridge-type transducers and for voltage signals. Constant voltage excitation is independently programmable for each channel. Special function signal conditioning requirements may be accommodated with SIPS™ (Smart Interface Panel System) product families and controlled by the VX2805B onboard processor. Input full-scale sensitivity is programmable from ±10mV to ±5V in 3dB steps. A 16-bit ADC provides high accuracy, a high dynamic range and resolutions from 340nV to 170µV per count. Offset correction range is ±2.5V with 16-bit resolution. A dedicated signal processor provides superb digital filtering. Filter Fco auto-tracks the sample rate, plus custom filter download capabilities. Dedicated hardware may generate a trigger from the analog signal being digitized on Channel #1 using either level and slope, or window criteria. Trigger Holdoff may be invoked to reject threshold crossings of short duration. Holdoff may improve triggering reliability under noisy signal conditions. The VX2805B auto bridge balance function may be initiated by computer command. A complete end-to-end calibration of each channel, including the transducer, may be performed by a computer calibration routine. You may use either switched or external calibration resistors (with SIPS™) or the unique internal shunt emulation circuit. The shunt emulation technique provides a fast, multi-point calibration check without operator intervention. Highlights 8 Channels Per Module Each Channel Includes Signal Conditioning, Filter, ADC and Memory 16-Bit Resolution High Dynamic Range Up to 5M Samples/s/ch. Simultaneous Sampling Dual Ported Memory Access at Rates <5M S/s 1k Snapshot Data FIFO for Each Channel 2.3MHz 3dB Bandwidth Buffered Analog Output for Each Channel Overload Detection for Each Channel Excellent Ch.-to-Ch. Phase Match Computer Controlled Calibration 16M Samples Storage per Channel Multi-Event Recording Digital Signal Processors Digital Filters, Flat Passband, Sharp Cutoff Internal and External Triggering Pre- and Post-Trigger Recording Gated Mode Dual Clock Rate Data Recording Constant Voltage Excitation SIPS™ Communication Port Fully Programmable Memory Battery Backup Capability Single Width, C-size, VXI Module Simple Multi-Chassis Phase Clock & Triggering Permits Multiple Chassis Expansion/Operation ECL Clock & Trigger Capabilities