National Instruments 781356-01 Digitizer Adapter Module for FlexRIO

Part Number 781356-01 is the identifying part number for the National Instruments NI-5751 Digitizer Adapter Module for FlexRIO. The 781356-01 features 16 analog input channels that are single-ended. The analog input uses a VHDCI connector with an input impedance of 50 Ω ± 2%. The module is DC coupled and supports a maximum input voltage swing of 2 Vpp. Furthermore, it uses a 14-bit pipeline ADC which is identified with a part number of AD9252. Moreover, this module has a bandwidth of 26 MHz (-3 dB) and a signal-to-noise ratio (SNR) of 71 dB at -1 dBFS, 5 MHz input signal.

The internal sample clock on the 781356-01 has a frequency range of 30 MHz to 50 MHz. Furthermore, the CLK IN uses an SMB connector The clock input (CLK IN) uses an SMB connector and works with a 3.3 V CMOS logic level. Likewise, the input impedance is greater than 50 kΩ and the input is DC-coupled. The duty cycle ranges from 45% to 55%. The 781356-01 has 8 digital input and 8 digital output terminals, all using a VHDCI connector. The digital inputs support a minimum high-level voltage (VIH) of 2.0 V and a maximum low-level voltage (VIL) of 0.8 V. On the other hand, the digital outputs have a maximum low-level output voltage (VOL) of 0.55 V, and the maximum high-level output voltage (VOH) is 2.4 V, with a maximum output current of 1 mA. The maximum toggle frequency for all outputs is 1 MHz.

The 781356-01 measures 12.9 × 2.0 × 12.1 cm (5.1 × 0.8 × 4.7 in.) in physical dimensions and weighs 284 g (10 oz). It features one SMB connector and three 68-pin VHDCI connectors. The 781356-01 draws 200 mA of current at +12 V (2.4 W max) and 900 mA at +3.3 V (2.97 W max) from the NI FlexRIO FPGA module. The total power consumed by the module is 5.37 W. Moreover, the module is to be operated at  0 °C to 55 °C at a relative humidity of 10% to 90%.