技术参数 输入阻抗 de Coupled Greater than 1 GΩ(1000MΩ);typically 5 GΩ(5000 MΩ).ac Coupled 100MΩ(each input BNC) 输入电流 Less than 10pA,either input; less than 5pA different (offset) current. 输入频率范围 <0.008 Hz(ac Coupled) to 400kHz zei大共模输入 10V, pk-pk; 200Vdc in ac mode zei大差分/单端输入 ±750mV(gains of X10-X100); ±75mV (gains of X200-X10K) 共模抑制(zei小) Frequency Gain>200 Gain<200 dc-100Hz 125dB 115dB 1kHz 105dB 95dB 10kHz 85dB 75dB 100kHz 65dB 55dB 200kHz 55dB 45dB 增益 X10-X10,000 in a 1-2-5-10 sequence; front panel potentiometer provides continuous gain to X25,000 增益精度 Better than 1% when vernier is in CAL position 增益稳定性 Better than 0.03%℃ 交流耦合 0.008 Hz to 400 kHz (-3 dB) with low pass switch in MAX position 高通滤波器 (low frequency rolloff) Switch-selectable for dc or 0.03 Hz to 3 KHz, in a 1-3-10 sequence @ 6 dB/octave rolloff. 低通滤波器 (high frequency rolloff) Switch-selectable from 3 Hz to 300 kHz and MAX in a 1-3-10 sequence @6 dB/octave rolloff; bandwidth in MAX position is 400 kHz min. at full output. 噪声因子 Less than 0.4dB at 10 Hz, with a 1MΩsource impedance. Less than 0.04 dB at 1kHz,with a 1 MΩsource impedance. NOISE Less than 15nV per Hz-½at 10Hz. Less than 7nV per Hz-½at 1kHz.Less than 4fA/√Hz below 100 Hz 输出 Four outputs(BNC) as follows:
600Ωoutputs (2)
Lo-Z output (to 25 mA, 50Ω)
Unity-gain (X1) output
zei大输出电压(电源供电)
600Ωoutputs: 20V pk-pk, min
Lo-Z output: 18V pk-pk min, up to 25mA
Unity-gain (X1) output: 2V pk-pk, min. up to 1mA
门控 Preamplifier may be gated with external input (rear panel BNC). Any waveform type, including TTL or contact closure, is permissible.Minimum duration (pulse) is 20 μsec. Maximum gate rate is 20kHz. 功率 100 to 130 Vac or 200 to 260 Vac (switchable), 50-60 Hz, 10 Watts 尺寸 215 x 380 x 90mm (8.5”wide x 15.5”deep x 3.5” high