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Analog-to-Digital modules provide full-scale voltage gain ranges

22nd March 2018

Lanna Deamer

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North Atlantic Industries has announced the availability of the AD1, AD2 and AD3 Analogue-to-Digital (A/D) function modules. Modules AD1, AD2 and AD3 are 12- channel A/D module(s) with (up to) 24-bit Sigma-Delta A/D converters for each individual channel with maximum programmable expected full-scale range inputs of 10, 100V, and ±25mA (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 maximise data flow control (in and out of the FIFO). Incremental relative time-stamping between samples is also provided as a programmable option.

"The A/D function modules are part of a group of over 40 unique function modules," stated Lino Massafra, VP of Sales and Marketing. "Our modules can be used with any of our latest generation multifunction I/O and SBC cards and in our Sensor Interface Unit systems to offer our customers the widest array and highest density of I/O in the industry."