Active Filter Single SW-CAP Low Pass 5th Order 20kHz 8-Pin PDIP N

The MAX281 is a 5th-order all-pole instrumentation low pass filter with no DC error. The filter uses an external resistor and capacitor to isolate the integrated circuit from the DC signal path, thus providing DC accuracy.The external resistor and capacitor together with the on-chip 4th-order switched capacitor filter form a 5th-order Bessel low pass filter. Bessel Low pass filters provide linear phase (constant group delay) response from DC to beyond the filter cutoff frequency, with some reduction in stop band attenuation.The filter cutoff frequency is set by a clock which can be either internally generated or externally provided. The clock to cutoff frequency ratio of 101 allows easy removal of clock ripple.

• Bessel Low pass Filter with No DC Error
• Low Pass band Noise
• DC to 20kHz Cutoff Frequency
• 5th-Order All-Pole Besse! Response
• Internal or External Clock
• Cascadable for Higher Order Roll off
• Buffered Output Available
• 8-Pin DIP or 1O-Pin Wide SO Packages