National Instruments 785808-01

The National Instruments 785808-01, also known as the PXIe-6349, is a high-performance multifunction I/O module tailored for diverse data acquisition and control applications. This module features an integrated design that encompasses analog input and output capabilities, digital I/O, and four 32-bit counter/timers, facilitating functionalities such as pulse-width modulation (PWM), encoder operations, frequency measurement, and event counting. The 785808-01 excels in delivering reliable and precise data acquisition, capable of simultaneous analog sampling across 32 differential input channels at a maximum rate of 500 kS/s. It employs a 16-bit analog-to-digital converter, providing a high degree of accuracy with selectable input ranges of ±1 V, ±2 V, ±5 V, and ±10 V. Enhanced input impedance and overvoltage protection features contribute to stability and device safeguarding under varying conditions.

The analog output section supports two channels, each with 16-bit digital-to-analog conversion (DAC) resolution, enabling update rates of up to 900 kS/s for a single channel. Designed for high-speed, high-accuracy signal generation, it includes selectable output ranges and robust overdrive protection, accommodating a variety of waveform generation modes, from non-periodic signals to periodic waveform regeneration, essential for applications requiring continuous signal output or dynamic adjustments.

The digital I/O component of the 785808-01 comprises 24 channels, which can be programmed individually as inputs or outputs, enhancing flexibility for timing signals and static digital operations. It also features waveform generation and acquisition capabilities on Port 0, alongside programmable filters and debounce settings. The module supports an extensive range of triggering options, with software-selectable polarity and the ability to route triggers from internal or external sources.

Utilizing advanced NI-STC3 technology, the 785808-01 features independent timing engines for analog and digital operations, enabling intricate timing configurations and retriggerable measurement tasks, thus improving its utility in test automation and control systems. Furthermore, dedicated scatter-gather DMA controllers for each counter/timer ensure efficient data transfer and reduced system latency, enhancing overall performance. The 785808-01 is a standard 3U PXI module weighing 140 g (4.8 oz) and is backed by a warranty of 2 to 3 years.