The 118 Preamplifier Plug-In is used in the 124 & 126 Lock-In Amplifier and the 114 Signal Conditioning Amplifier. The unit is self-contained and derives power from the instrument with which it is being used.
Input Impedance: >10 kohms SE/DE
Bandwidth: 0.2Hz to 210kHz
Common Mode Rejection Ratio: 110 dB at 60Hz
Maximum Input Voltage: ?5 V