National Instruments 781287-01 Digitizer Adapter Module for FlexRIO

Part Number 781287-01 is the identifying part number for the National Instruments NI-5761 Digitizer Adapter Module for FlexRIO. The 781287-01 features 4 single-ended analog input channels that are simultaneously sampled. The connector type used for analog inputs is SMA and the input impedance is 50 Ω, per connector. The sample rate of the internal sample clock is 250 MHz while the sample rate for the external sample clock ranges from 175 MHz to 250 MHz. Furthermore, the digital data ranges between ±8,191. Moreover, the ADC used for conversion has a resolution of 14 bits and is identified as ADS62P49. 

The 781287-01 is an AC-coupled version of the digitizer module whose input range is 2.07 Vpk-pk and the absolute maximum input is ±10 V DC or  5 Vpk-pk AC. The -3 dB bandwidth is 0.1 MHz to 500 MHz while the -1 dB bandwidth is 1 MHz to 250 MHz. The internal sample clock on the 781287-01 uses a fixed frequency synthesizer as the oscillator and has a frequency of 250 MHz. The reference sources can be internal or external through the CLK IN connector, or IoModSyncClk, and the internal reference frequency is 10 MHz. The CLK In has a single-ended channel and uses a SMA connector with an input impedance of 50 Ω. Furthermore, the device also features 8 bidirectional PFI channels using a Micro-D connector and the 2.5 V LVCMOS interface standard. The maximum toggle frequency is 500 kHz. 

The 781287-01 measures (5.1 × 0.8 × 4.7 in.) in physical dimensions and weighs 312 g. There are 6 SMA connectors and one Micro-D connector in the front panel. The total power consumed by the module is 5.3 W. The module is recommended for operation between temperatures of  0 °C to 55 °C at a relative humidity of 10% to 90%. Likewise, it is designed for indoor use only and should be operated within a maximum altitude of 2000 m. On the other hand, it can be stored between  -20 °C to 70 °C at a relative humidity of 5% to 95%.