The SRS SR650 has a low-noise preamplifier, a precision high-pass and a low-pass filter section, and an output amplifier. The filters are 8-pole, 6-zero elliptic-type with 115 dB per octave rolloff, 0.1 dB of passband ripple, and 80 dB stopband attenuation. Cutoff frequencies can be set between 1 Hz and 100 kHz, making the SR600 series ideal for applications including anti-aliasing, audio analysis, and frequency-domain signal conditioning.
Features Two independent filter channels 115 dB/octave rolloff 1 Hz to 100 kHz frequency range 0.1 dB passband ripple 6 nV/Hz input noise Up to 80 dB of gain GPIB and RS-232 interfaces