National Instruments 779119-01 PXI Multifunction I/O Module

Part number 779119-01 from National Instruments describes the version of the PXI-6259 Multifunction I/O Module that is designed for SCXI Control of a PXI/SCXI Combo Chassis. The module boasts an ADC resolution of 16 bits, making it an excellent choice for applications that need high accuracy in addition to a dynamic range. 

The 779119-01 supports 32 single-ended or 16 differential analog input channels, which have a maximum sample rate of 1.25 MS/s per channel. The analog input of the module features a finely tuned timing resolution of 50 ns and a timing accuracy of 50 ppm. Additionally, the module has an input FIFO size of 4,095 samples. 

When it comes to analog output, the 779119-01 features 4 output channels that have a DAC resolution of 16 bits.  The maximum update rate for the output channels depends on how many channels are used- ranging from 2.86 MS/s per channel to 1.25 MS/s per channel when all four channels are in use. The timing accuracy for the analog output of the 779119-01 is set at 50 ppm of the sample rate in addition to a timing resolution of 50 ns, mirroring the specifications for analog input. However, the analog output has almost double the FIFO size, with 8,191 samples shared among channels.

Adhering to the standard 3U PXI form factor, the 779119-01 comes equipped with 2 68-pin VHDCI I/O connectors and weighs only 233 g (8.2 oz). The module reaches peak performance when it is operating within a temperature range of 0 ºC to 55 ºC, and it can be stored safely within a wide temperature range of -20 ºC to 70 ºC.