Using an analog filter to help separate a signal from noise
Analog filters are a critical component in all of PFI’s signal conditioning products. When properly implemented, an analog filter can separate a desired signal from noise and ensure adequate alias protection for sampling and A/D conversion.
Choosing the right filter for a particular application requires an understanding of filter response characteristics, which are derived from the mathematical relationship between input and output that forms the basis for analog filter design.
In the new white paper “Guide to Understanding Filter Specification Sheets”, Precision Filters explains the analysis behind PFI’s filter specification sheets, which summarize the response characteristics of their proprietary line of FLAT and PULSE designs.
Download the paper today to learn more about:
| • | Filter transfer functions |
| • | Filter classes and prototypes |
| • | Amplitude and phase responses |
| • | Phase delay vs. group delay |
| • | Phase distortion and waveform reproduction |
| • | Step response in the time domain |
| • | Alias attenuation |
| • | Band-pass filter construction |
From the laboratory to the test cell, Precision Filters’ programmable filter/amplifier system line-up has you covered. Choose from the high-density modular 28000 system that packs up to 128 channels of anti-alias filter/amps in a single chassis, the convenient 16-channel PF-1U rack mount filter/amplifier system, or the compact PFA-2 two-channel desktop unit. We even offer a pair of programmable filter modules for NI’s™ popular cDAQ™ and cRIO™ format.