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National Instruments PXI-2535 PXI Matrix Switch Module

The National Instruments PXI 2535 (Part Number: 778572-35) is a high density, 1-Wire, 544-Crosspoint PXI Matrix Switch Module. This model is perfect for the routing of DC signals (low power) in various applications just like validation test procedures of mass manufactured devices, including printed circuit boards (PCBs) and semiconductor chips. This module comes featured with field-effect transistor relays and has an onboard relay counting provision that can be utilized for deterministic and relay monitoring operation in conjunction with hardware triggers to enhance test throughput.

The relays constituting the NI PXI-2535 offer tremendous speeds up to 50,000 crosspoints/s and unlimited mechanical lifetime. This Matrix Switch Module is designed to provide ±12 VDC, 8 VAC maximum switching voltage (channel-to-ground), 1.2 W maximum switching power (resistive, per channel), and 100 mA maximum switching current. At 23 °C, the DC isolation resistance between open terminals of the PXI-2535 remains >1 GΩ, typical. This switch model comes with an integrated overvoltage protection circuitry, which actuates on ±36 VDC in the "powered on" state and ±40 VDC in the "powered off" state.

For a one row to one column based 50 Ω system, this module can serve >1 MHz single crosspoint bandwidth. This module incorporates high-quality FETs featuring 12 µs typical and 16 µs maximum operating time. Moreover, it has a simultaneous drive limit of up to 544 switches. By design, the National Instruments PXI-2535 is a 3U, one slot PXI module with four 68-pin receptacle VHDCI I/O connectors. While operating within the specified temperature range (i.e., 0 °C to 55 °C), this module consumes 1.7 Watts of power at 3.3 V and 1.3 Watts at 12 V.