HP 3455A Operating And Service Manual page 98

Model
345SA
THEORY
OF OPERATION
Seciion
VIII
for the
I
V
dc
Reference Offset Error
Measurement. The
8-31.
100
V
dc and 1000
V
dc Gain Error Measurement,
input
of
the
DC
Preamp
is
grounded through
the len-to-onc Figure
8-13
shows
the circuit
arrangement
for
making
the
divider
by
FET
switch
AI0Q16. Preamp
gain
is
XIO. 100
V
dc gain error
measurement.
The
reference voltage
is
Figure 8-1
1. .1
V
dc
ar>d 1
V
dc
Gain
Error Measurement.
Figure 8-12.
1
V
dc
Reference Offset Error
Measurement.
8-7