The Krohn-Hite Model 3955 programmable, dual channel, low-pass filter is the first dual low-pass programmable filter of its kind, covering the wide cutoff frequency range from 170Hz to 25.6MHz with 2 digits of resolution. The 3955 is a 4-pole, maximally flat (Butterworth) filter, with an attenuation slope of 24dB/octave and a stopband attenuation of >100dB referred to 1Vrms input. The filter has selectable ac or dc coupling and selectable 1M or 50 ohm input impedance. Programmable input gains to 20dB and output gains to 26dB are standard.
170Hz to 25.6MHz, Dual Low-Pass Butterworth/Bessel Programmable Filter
• 2 Independent Channels
• Frequency Range: 170Hz to 25.6MHz
• Response: Butterworth or Bessel (optional)
• Attenuation Slope: 24dB/Octave
• Input Gain: Selectable up to 20dB
• Output Gain: Selectable up to 26dB
• Noise: Typically <250μV referred to input
• Stopband Attenuation: >100dB
• Remote Control: GPIB
| Krohn-Hite Corporation | |
|---|---|
| Product Category | Signal Filters |
| Product Number | Model 3955 |
| Product Name | 170Hz to 25.6MHz, Dual Low-Pass Butterworth/Bessel Programmable Filter |
| Form Factor | Rack Mount (optional feature); Stand-alone |
| User Interface | Front Panel |
| Input Channels | 2 # |
| Architecture | Analog |
| Number of Poles | 4 |
