National Instruments 784813-01 Ch-Ch Isolated Analog Input Module

The National Instruments 784813-01 is an advanced channel-to-channel isolated analog input module. It is also identified as PXIe-4310 and is designed for high-precision voltage measurements. This module offers a 16-bit ADC resolution along with 8 differential channels that ensure accurate and reliable data capture. Each channel operates with a maximum sampling rate of 400 kS/s that allows for high-speed data acquisition across various input ranges (±10 V, ±5 V, ±2 V, and ±1 V). 

The NI 784813-01 features software-selectable lowpass filtering on each channel that offers options of 10 kHz, 100 kHz, or disabling the filter entirely. The module employs a 2nd order Butterworth filter, which is well-suited for preserving the integrity of the measured signals while providing a consistent -3 dB bandwidth of 950 kHz. The device's high common-mode rejection ratio (CMRR) of 130 dB at 60 Hz further enhances its ability to accurately measure signals in noisy environments.

The 784813-01 is robust in terms of fault protection. It fault tolerance is ±60 V between analog input pins and between any AI and COM pins. This protection extends to digital PFI inputs that are capable of handling input high voltages up to 5.5 V and low voltages down to 0 V along with adjustable debounce filter settings to suit various triggering conditions. This NI module supports a range of digital and analog triggers that provides flexible options for precise timing and synchronization during measurements.

The NI 784813-01 isolated analog input module is housed in a compact, 3U PXI Express form factor, compliant with PXI Express and hybrid slots. It measures 16 cm by 10 cm (6.3 in. by 3.9 in.) in size and weighs only 170 g (6.0 oz.). It is engineered to operate in demanding environments along with a temperature range of 0 °C to 55 °C and the ability to withstand shocks up to 30 g. This module is suitable for both indoor laboratory use and field applications that meet stringent environmental and compliance standards like IEC, EN, and MIL-PRF certifications. Its robust design, combined with the flexibility of the NI-DAQmx driver, simplifies hardware configuration and enhances overall measurement efficiency.