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Differential plug-in amplifier for use in any 5000 Series mainframe. Bandwidth - HF -3 dB Point: Selectable in 9 steps (1·3 sequence) from 100 Hz to 1 MHz. 100 Hz to 0.3 MHz, accuracy is within 20% of selected frequency; at 1 MHz, bandwidth is down 3 dB or less. LF -3 dB Point: Selectable in 6 steps (1-10 sequence) from 0.1 Hz to 10 kHz accuracy is within 20% of selected frequency. Ac Coupled: 2 Hz or less. Deflection Factor - Calibrated: 10 uV/div to 5 V/div in a 1-2-5 sequence. Accuracy is within 3%. Uncalibrated: Variable is continuous between steps to at least 12.5 V/div. Input R and C - 1 M-ohm within 0.15% paralleled by ~47 pF. Maximum Input Gate Current - 200 pA or less. Displayed Noise - 20 uV at maximum bandwidth, source resistance 25 ohm or less, measured tangentially. Overdrive Recovery - 10 us or less to recover within 99.5% of reference level after removal of a test signal applied for 1 s. Signal amplitude not to exceed common·mode signal range. Common-Mode Rejection Ratio - Ac Coupled : 10 uV/div to 0.5 mV/div, at least 20,000:1 at 5 kHz and above, decreasing to 400:1 at 10 Hz. Dc Coupled: At least 100,000:1, dc to 30 kHz from 10 uV/div to 100 uV/div with up to 20 V p-p sinewave, decreasing by <20 dB/decade on sensitivity ranges up to 50 mV/div. From 100 mV/div to 5 V/div, CMRR is at least 400:1 with up to 100 V p-p sinewave.
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