The National Instruments 785116-01, also referred to as the PXIe-5423, is a high-performance 2-channel arbitrary waveform generator tailored for diverse signal generation applications. This device operates with a maximum frequency of 40 MHz and is capable of generating a wide variety of standard waveforms, including sine, square, triangle, and ramp shapes, as well as custom arbitrary waveforms. It delivers an extensive amplitude range, outputting signals from 0.00775 Vpk-pk to 12 Vpk-pk with a 50 Ω load, and up to 24 Vpk-pk when operating in an open load configuration. Featuring a 16-bit digital-to-analog converter (DAC), the 785116-01 allows for precise amplitude adjustments in 0.16 dB increments, ensuring high-resolution signal fidelity. The output is single-ended with a 50 Ω impedance, accommodating user-specified load compensation.

The generator maintains DC accuracy within ± 0.35% of the amplitude range near the calibration temperature, alongside AC amplitude accuracy of ± 1.0% across its operational bandwidth. Its robust feature set includes waveform scripting and streaming capabilities for executing complex signal sequences and real-time waveform customization. The device can store up to 128 MB of waveform data per channel, supporting a sample range from 2 million to 64 million samples, with an adjustable sample rate from 5.6 MS/s to 200 MS/s when digital filtering is activated.

Further enhancing its functionality, the NI 785116-01 incorporates a stable reference clock source with an initial calibrated accuracy of 1.5 ppm. In multi-channel applications, synchronization is supported, with channel-to-channel skew maintained at ± 110 ps for signals below 2.75 Vpk-pk. The module is designed for durability, operating in environmental conditions from 0 °C to 55 °C and resistant to shocks of up to 30 g peak. Complying with various electromagnetic compatibility standards, this generator features a compact form factor and integrates effortlessly into existing test systems via its PXI Express interface. The physical dimensions are 21.6 cm × 2.0 cm × 13.0 cm (8.5 in. × 0.8 in. × 5.1 in.), and it weighs 376 g (13.3 oz). The 785116-01 is backed by a warranty period of 2 to 3 years, underscoring its reliability for industrial applications.