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National Instruments 778538-02 PXI Digital Waveform Instrument

National Instruments 778538-02 is the part number for the PXI-6551 Digital Waveform Instrument that has 8 MBits of memory per channel. This waveform instrument has a total onboard memory size of 32 MBytes for both generation and acquisition thanks to a memory architecture that uses synchronization and memory core technology. With 20 direction-controlled channels, the 778538-02 boasts a versatile set of features that make it the perfect choice for a wide variety of test and measurement applications.

The waveform generation capabilities of the 778538-02 suits the needs different test setups with both single and scripted modes. When in single waveform mode, the device has the option to generate a waveform once, a set number of times, or continuously. For applications that are more complicated, the scripted mode allows the 778538-02 to generate waveform sequences that are either simple or complex. A finite repeat count is supported, with an extraordinary range from 1 to 16,777,216 repetitions. It is important to note that the waveform must be an integer multiple of 2 samples in order for waveform quantum generation to be used.

The features of generation voltage for the 778538-02 operates within a range of -2.0 V to 5.5 V, with it maintains a nominal output impedance magnitude of 50 Ω. Each channel of the waveform instrument boasts a max DC drive strength of ±50 mA, while all data, clock, and PFI channels support ±600 mA.

The 778538-02 weighs 375 g (13.2 oz), has dimensions of 18.6 cm x 13.1 cm (7.32 in x 5.16 in), and can operate efficiently in temperatures ranging between 0 and 55 °C. The clock terminals of the instrument comprise 3 inputs and 2 outputs.