12-channel analog-to-digital function modules

March 23, 2018 // By Julien Happich
North Atlantic Industries' AD1, AD2 and AD3 Analog-to-Digital (A/D) function modules are 12- channel A/D modules with up to 24-bit Sigma-Delta A/D converters for each individual channel with maximum programmable expected full-scale range inputs of 10V, 100V, and ±25 mA (current only) respectively. The A/D converters provide simultaneous, programmable sample rates of up to 256kHz.

Each A/D module provides field programmable input range and gain for each channel. The ability to set lower than expected, full-scale voltage gain ranges assures the use of the full resolution. Each channel includes an anti-aliasing filter with an inherent digital "brick wall" filter and a digital second-order IIR low-pass filter with a programmable breakpoint that enables users to field-adjust the filtering for each channel. All channels have continuous background Built-In-Test (BIT). The modules also include extended A/D FIFO buffering capabilities for greater storage/management of the incoming signal samples (data) for post processing applications. Programmable FIFO buffer thresholds maximize data flow control (in and out of the FIFO). Incremental relative time-stamping between samples is also provided as a programmable option.
North Atlantic Industries -  www.naii.com


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