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National Instruments 781102-01 Multifunction Reconfigurable I/O Device.

The National Instruments 781102-01 is a Multifunction Reconfigurable Digital I/O Device that features Virtex-5 LX30 FPGA technology. The FPGA offers 19,200 flip-flops, 19,200 6-input LUTs, and 32 DSP48 slices for high-performance onboard processing. It is also equipped with 1,152 kbits of embedded block RAM. This NI model is also identified as the PCle-7851 and is designed for applications demanding precise timing and control. The NI 781102-01 features 8 single-ended analog output channels with a 16-bit resolution and a maximum update rate of 1 MS/s. It uses an enhanced R-2R DAC that provides a voltage output range of ±10 V. The outputs have an impedance of 0.5 Ω and a current drive capability of ±2.5 mA.

This 781102-01 device also includes 8 analog input channels, supporting DIFF, RSE, and NRSE modes, and utilizes a 16-bit successive approximation ADC. Each channel can achieve a maximum sampling rate of 750 kS/s. The input impedance is 10 GΩ (powered on) and 4.0 kΩ (powered off). It supports a ±10 V input signal range, with overvoltage protection of ±42 V (powered on) and ±35 V (powered off). The device ensures accurate data capture with a small signal bandwidth of 1 MHz and large signal bandwidth of 500 kHz. The device offers flexible interfacing options with 96 TTL-compatible digital I/O channels. Each digital output can source and sink 4.0 mA, with programmable power-on states. The inputs are protected against voltages from -20.0 to 20.0 V, and the outputs can handle short circuits on up to eight lines simultaneously.

The NI 781102-01 RIO device interfaces via a master/slave bus with DMA, interrupts, and programmed I/O data transfers. It has three DMA channels and requires +5 VDC, +3.3 VDC, +12 V, and -12 V power supplies. The device (781102-01) measures 17 cm x 11 cm and weighs 127 g. It operates within the temperature range of 0 to 40 degrees Celsius, under the maximum humidity of 90% RH. Safety and EMC compliance are assured in this 781102-01 model with certifications like IEC 61010-1, EN 61010-1, UL 61010-1, CSA 61010-1. It also holds various EMC standards like EN 61326 and FCC Part 15B. This device is ideal for sensor simulation, HIL tests, high-speed control, and custom protocol communication.