National Instruments 785570-01 PXI Multifunction Reconfigurable I/O Module

The National Instruments 785570-01 (PXIe-7867R) PXI Multifunction Reconfigurable I/O Module is designed for high performance applications requiring precise timing, control and flexibility. It features a user programmable FPGA that enables direct control over I/O signals and provides customizable timing and synchronization options. The FPGA (Kintex-7 160T) boasts 202,800 flip-flops, 101,400 LUTs and 11,700 kbits of embedded block RAM. The module supports high speed streaming and data transfers with 512 MB of onboard DRAM and a maximum theoretical data rate of 800 MB/s.

The 785570-01 module includes 18 analog output channels each connected directly to the FPGA. These channels use a 16 bit enhanced R-2R DAC with a maximum update rate of 1 MS/s. The outputs are protected against short circuits and overvoltage with programmable power on states to suit specific application needs. The analog input section features 6 channels with a 16 bit successive approximation register (SAR) ADC and is capable of sampling at up to 1 MS/s per channel. Input modes are software selectable that allow for differential, non referenced single ended or referenced single ended configurations. The module's input signal range is also adjustable between ± 1 V and ± 10 V.

The NI 785570-01 provides 48 channels in terms of digital I/O across two connectors with a maximum frequency of 80 MHz on Connector 1. The digital I/O channels support LVTTL and LVCMOS logic families with 3.3 V voltage levels. Each digital I/O channel features direction control and is programmable per line that allows for flexible configuration in different operational scenarios. The module also includes external clock inputs and reconfigurable FPGA logic that enables high precision synchronization and timing across multiple channels and devices. Safety and protection are key aspects of the 785570-01 module's design with overvoltage protection on both analog and digital channels. The module's physical design ensures reliability with dimensions of 18.5 cm × 17.3 cm × 3.6 cm and a weight of 175.3 grams. It supports various PXI Express slot configurations including x4, x8, and x16 that ensure compatibility with a wide range of systems. The module features a robust bus interface with 16 DMA channels that facilitate efficient data transfers and system integration.