National Instruments 786455-01 Multifunction Reconfigurable I/O Device.

The National Instruments 786455-01 which is also identified as a PCIe-7856 module is a Multifunction Reconfigurable Digital I/O Device. It features a Kintex-7 160T FPGA technology. This device supports a variety of high-speed data acquisition and control tasks that include custom protocol communication, hardware-in-the-loop testing, sensor simulation, and high-speed control. The NI 786455-01 device is equipped with a reconfigurable Kintex-7 160T FPGA that offers 202,800 flip-flops, 101,400 LUTs, 11,700 kbits of embedded Block RAM, and 600 DSP48 slices. It offers multiple timebases, with the default set to 40 MHz. Data transfers can be managed through DMA, interrupts, or programmed I/O, and synchronization resources are available via RTSI<0..7>.

The 786455-01 has 8 x analog input channels with software-selectable input modes: DIFF, NRSE, and RSE. It uses a 16-bit successive approximation register (SAR) ADC with a conversion time of 1 µs. It offers the maximum sample rate of 1 MS/s per channel. The input signal range is configurable to ±1 V, ±2 V, ±5 V, or ±10 V, and it includes overvoltage protection up to ±42 V when powered on. This multifunction digital RIO device offers 8 x single-ended voltage output channels. Each channel has a 16-bit enhanced R-2R DAC and an output range of ±10 V. The outputs feature short circuit protection and overvoltage protection up to ±15 V when powered on. The Digital I/O capabilities include two connectors providing a total of 48 channels, with maximum frequencies of 10 MHz on connector 0 and 80 MHz on connector 1.

The I/O voltage is programmable per connector and defined at compilation. Each channel supports a direction control and a minimum I/O pulse width of 6.25 ns. The 786455-01 DAQ device is designed as a standard height, half-length, and x4 PCI Express device that weighs only 141.4 g. It features 2 x 68-pin VHDCI connectors for I/O and 16 DMA channels. The device operates within a temperature range of 0 °C to 55 °C and up to an altitude of 2,000 m. The calibration of this 786455-01 multifunction RIO device requires a 15-minute warm-up, with a recommended calibration interval of one year.