NI SCXI-1143 - 8-Channel Lowpass Butterworth Filter Module
The National Instruments SCXI-1143 is an 8-channel, programmable lowpass Butterworth filter module, ideal for antialiasing applications. The architecture of this module consists of a programmable instrumentation amplifier and programmable 8th-order lowpass filter on each channel. Although all channels must be set to the same cutoff frequency, you can programmatically bypass the lowpass filter on a per-channel basis. By using a combination of analog filters and switched capacitor filters, you can achieve the flexibility of 10,000 discrete software-programmable cutoff frequencies while maintaining the low-noise performance of traditional, continuous time-active filters. An external clock input and output are also provided so that you can set the filter cutoff frequency with an external clock in tracking filter applications. The NI SCXI-1143 conditions signals ranging from ±50 mV to ±5 V, and offers multiplexed and parallel modes of operation. The SCXI-1600 USB data acquisition module can be used in conjunction with this module to create a completely plug-and-play USB data acquisition system. An SCXI chassis is required to house the SCXI-1600 and assorted SCXI modules for a particular system. The SCXI-1000 chassis is capable of holding up to four modules while the SCXI-1001 can hold up to 12.
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National Instruments
11500 N Mopac Expwy
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