Part Number: 778745-4204
Description: The National Instruments 778745-4204, also referred to as the PXI-4204, is a high-performance 16-bit, 8-channel analog input module designed specifically for PXI systems. With a maximum sampling rate of 200 kS/s for aggregate measurements and 22 kS/s per channel, this module supports a wide input range of ±100 V, ±50 V, ±5 V, and ±0.5 V, making it ideal for high-voltage applications such as 42 V automotive measurements. Its differential, simultaneous-sampling architecture maximizes measurement accuracy by eliminating phase delays between channels. The PXI-4204 integrates signal conditioning and data acquisition (DAQ) within a single device, featuring a National Instruments programmable gain instrumentation amplifier (PGIA) that provides fast settling times. The module is equipped with a two-pole software-programmable Butterworth filter with adjustable bandwidth options of 6 Hz and 10 kHz per channel, enhancing signal fidelity. Users can customize per-channel settings through software solutions like Measurement & Automation Explorer (MAX) and NI-DAQmx function calls, allowing for tailored configurations to meet specific measurement requirements. Additionally, the module features a 512-sample FIFO buffer, DMA capabilities, and interrupt handling for efficient data transfer. With DC coupling and a differential input impedance of 2 MΩ, the PXI-4204 ensures accurate measurements across varied environmental conditions, supported by self-calibration that minimizes offset and gain error temperature coefficients. For enhanced system integration and synchronization, the module seamlessly interacts with other DAQ devices via the PXI trigger bus.