SR640 - Stanford Research Systems Tunable Filters

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Technical Specifications

High end frequency limit


Operation Modes

Extra Specifications
Programmable elliptical Filter

Product Description

The SR600 series consists of three dual-channel instruments. Each instrument channel has a low-noise preamplifier, a precision high pass or 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 of 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.

SR640 - Dual Low Pass
SR645 - Dual High Pass
SR650 - High Pass/Low Pass (can be cascaded for Band Pass)