GFT6004 Transient Recorder

Features

2GS/s Max sampling frequency per channel
A/D conversion: 14 bits
4 Channels
300 MHz bandwidth (small signal)
Full Scale Range : ± 1.0 V
175 µV Noise RMS
2520 samples per channel
Four Trigger mode
USB or GPIB interfaces
INtegral non linearity: ± 0.1%

Overview

The GFT6004, high Speed, high resolution transient recorder is the best solution for high dynamic acquisition of fast analog signals.

GFT6004 performs the coding of 4 analog channels with a bandwidth of up to 300 MHz, over a 14-bit dynamic range and at a sampling frequency (Fe) reaching up to 2 GHz with 2520 points of memory per channel. The GFT6004 is a 19″ rack instrument, 1U, with USB or GPIB connectivity

The data acquisition process is realized in three phases:
Acquisition: the analog signal is continuously sampled at the sampling frequency Fe in the GFT6004 circular analog memory. The arrival of a trigger signal initiates the stopping phase of the sampling. At the end of this phase, the state of the memory is latched; it then contains the last 2520 points sampled.

Digitization and storage: upon reception of the order to stop the acquisition, the samples stored under analog form in the GFT6004 are read out rapidly and coded into digital data over 14 bits, then stored in the event RAM. The acquisition is then informed of the end of the coding phase by an interruption (it may also scan a flag within an internal register).

Reading: the RAM can then be read out by the acquisition system. This operation lasts a few ms for the full readout of a 4-channel recorder. This behavior allows to reach an acquisition