HBM Genesis GEN5i User Manual page 506

506
Figure D.2: Single ended or unbalanced, grounded amplifier with passive
probe
An inline resistor acts as a voltage divider with the input resistance of the
l
amplifier
The amplifier itself sees only U
l
This can be done if the resistors (and capacitors) between probe and amp
l
match
This can be done with any oscilloscope or the GEN DAQ Basic Amp
l
But oscilloscope probes are typically only +/- 2 % to +/- 5 % accurate
l
They need compensation –> C compensation range needs to match input
l
amplifiers capacitance range
; the total input range is 10 * U
in
GEN5i
in
I2679-4.0 en