National Instruments 779687-01

The National Instruments 779687-01 PXI-4461 Sound and Vibration Module is a technologically advanced device designed for hybrid slot compatibility, enabling connection with both CompactPCI and PXI Express hybrid slots. This module features versatile analog input options, allowing users to configure channels in either differential or pseudodifferential modes with an impedance of 50 Ω between the negative input and chassis ground. Each channel’s input coupling can be independently set to AC or DC, while the output coupling is fixed at DC. The module ensures protection against short circuits through indefinite safeguards between positive and negative terminals. Power requirements vary based on the voltage levels, requiring 990 mA at +5 V, 1,430 mA at +3.3 V, 170 mA at +12 V, and 110 mA at -12 V. The onboard 24-bit ADC utilizes a delta-sigma architecture, delivering sample rates that range from 1 kS/s up to 204.8 kS/s in increments of 181.9 μS/s. The 2,047-sample FIFO buffer supports efficient data transfer via direct memory access (DMA). Additionally, the module maintains an internal timebase accurate to ±20 ppm across an operating temperature range of 0 to 55 °C (32 °F to 131 °F). Compact in design, the module measures 16 cm × 10 cm (6.3 in. × 3.9 in.) and weighs 241 g (8.5 oz). The National Instruments 779687-01 is backed by a three-year warranty.