Lowpass Filter Input Module for SCXI


8-Channel, Bessel Lowpass Filter Input Module for SCXI—The SCXI‑1142 is a programmable filter module that is ideal for anti-aliasing applications. Although all channels must be set to the same cut-off 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 cut-off 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.