National Instruments 781047-01 Multifunction I/O Device 

National Instruments part number 781047-01 is an identifying part number for the PCIe-6343, a Multifunction I/O Device. The NI 781047-01 is a versatile device designed for high-performance applications, including advanced timing and retriggering measurements. It has 16 differential analog inputs, which can also be used as 32 single-ended inputs. The device also includes 4 analog output channels and 48 digital I/O channels. Each input channel has 16-bit ADC resolution. With a bandwidth of 1.2 MHz and a FIFO buffer size of 2,047 samples, it delivers fast performance for a wide range of applications. 

The 781047-01 I/O device has 4 output channels, each with 16-bit resolution and support for multichannel sampling. When sampling a single channel, the rate is 900 kS/sec. For 4 channels, the maximum rate is 719 kS/sec per channel. The output voltage ranges up to +10 V. The device includes 48 digital PFI channels, which can be independently configured as input or output. The sampling rate can reach up to 500 kS/sec for both single and multi-channel setups, with no minimum rate. For analog inputs, this device supports adjustable ranges of +0.2 V, +1 V, +5 V, or +10 V, but the working voltage must not exceed +11 V. 

The analog input channels are protected against overvoltage, with ±25 V protection for up to two AI pins when the device is on, and ±15 V protection when the device is off. The NI 781047-01 I/O device features an output FIFO with a capacity of 8,191 samples, shared among all active channels. Data transfers are managed through DMA (scatter-gather) or programmed I/O. For analog output (AO) waveform modes, the device supports non-periodic waveforms, periodic waveform regeneration from the onboard FIFO, and periodic waveform regeneration from the host buffer, including dynamic updates. The output coupling is DC, and the output impedance is 0.2 Ω.