AL8XGTE 8 bit 1-3 GHz 2 Channel A/D Card OKOS

Description

Overview

Essential details：AL8XGTE 8 bit 1-3 GHz 2 Channel A/D Card OKOS

The AL8xGTe is a two channel A/D board for the PCI Express x1 bus. It is optimized for high-speed transient capture at a sampling rate of 1, 1.5, 2 or 3 GSsamples/sec at very high repetition rates. A large dual-ported onboard buffer memory allows simultaneous transient recording and readout of captured data.
A post-processing section can be used to extract peak information on multiple gates while the captured data is transferred over the PCI Express bus into the PC’s main memory.
The analog inputs are DC-coupled and terminated with 50 Ohms impedance for high signal fidelity over the entire analog bandwidth of over 1 GHz. Input voltage ranges are programmable from 125mVp-p to 2Vp-p.
One or two A/D converters with 8 bits resolution sample the input signal at 1.0 or 1.5 Gsamples/sec. Board versions with two A/D converters can either sample both input channels simultaneously at 1.0 or 1.5 Gsamples/sec or use both A/D converters on the same channel in an interleaved fashion to achieve 2.0 or 3.0 Gsamples/sec effective sampling rates.
The sampled data is stored in an onboard memory buffer of up to 4 Gsamples. The size of this buffer memory determines the maximum length of an acquisition. The board will be ready to accept a trigger about 2 microseconds after the end of the previous acquisition, which allows for repetition rates well beyond 100 kHz for short acquisitions.

AL8XGTE

The sampling clock is generated on the board and not available externally. Lower sampling rates of 750, 500, 375, 333, 250 Msamples/sec down to 244 kSamples/sec are created by decimating the sampled data while reading it from the buffer memory. Reading data from the buffer memory occurs simultaneously with acquisition and does not affect repetition rate.
The sampled data is transferred over the PCI Express bus using DMA, thus requiring no CPU intervention to achieve high transfer rates. During this data transfer, a set of peak detectors can be used to monitor the sample stream and extract peak position and threshold crossing data over selected pieces of the sampled data.
A large selection of flexible triggering modes allows the user to tailor the behavior of the board to many applications. In addition to the standard software-generated trigger, the board can be triggered by a threshold crossing of the analog input signal on any channel or a signal fed to the BNC Trigger connector, a digital TTL signal on the internal trigger connector or a position-derived trigger from an encoder or motor of a scanning system.
The BNC Trigger and internal trigger connectors can also drive a trigger signal as an output; for instance, to fire an ultrasonic pulser/receiver. This driver supports special modes that can be used to trigger multiple boards simultaneously from any of the connected boards, simply by tying the BNC Trigger or internal trigger connectors together.
A simple oscilloscope program is included with the board. It allows evaluation of the various configurations and triggering modes of this board. Drivers and a DLL implementing OKOS Solutions’ software provide easy access to the functionality of the board from a user application.

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Superiority products AL8XGTE 8 bit 1-3 GHz 2 Channel A/D Card OKOS