Tektronix CSA7404B - Page 31

Specifications
CSA7404B, TDS7704B, TDS7404B, TDS7254B & TDS7154B Service Manual
1-7
Table 1- 2: Channel input and vert ical specifications (Cont.)
Characteristic Description
CSA7404B, TDS7404B, TDS7254B, &
T
D
S
7
1
5
4
B
2mV/divto3.98mV/div (2.5% +(6% × | net offset/1V | ))
TDS7154B
4 mV/div to 99.5 mV/div
(2% +(2% × | net offset/1V | ))
100 mV/div to 1 V/div (2% +(2% × | net offset/10V | ))
n DC voltage measurement accuracy
CSA7404B, TDS7404B, TDS7254B, &
TDS7154B
Measurement type DC accuracy (in volts)
Average acquisition mode (≥16 aver-
ages)
2mV/divto3.98mV/div ±[(2.5% +(6% × | net offset /1V | )) ×
| reading -- net offset | + offset accuracy
+ 0.08 division × V/division]
4 mV/div to 99.5 mV/div ±[(2% +(2% × | net offset/1V | )) × |
reading -- net offset | + offset accuracy
+ 0.08 division × V/division]
≥100 mV/div ±[(2% +(2% × | net offset/10V | )) ×
| reading -- net offset | + offset accuracy
+ 0.08 division × V/division]
Delta voltage measurement between any
two averages of ≥16 waveforms
acquired under t he same setup and
a
m
b
i
e
n
t
c
o
n
d
i
t
i
o
n
s
2mV/divto3.98mV/div ±[(2.5% +(6% × | net offset/1V | )) × |
reading | + 0.16 division × V/division
setting]
a
mbient
c
onditions
4 mV/div to 99.5 mV/div
±[(2% +(2% × | net offset/1V | )) ×
| reading | + 0.16 division ×
V/division setting]
100 mV/div to 1 V/div ±[(2% +(2% × | net offset/10V | )) ×
| reading | + 0.16 division ×
V/division setting]
Net offset is the nominal voltage that must be applied to the channel to bring the
trace to center screen. Net offset = offset -- ( position × volts/division) and is
expressed i n volts
n DC voltage measurement accuracy,
TDS7704B
Measurement type DC accuracy (in volts)
Average acquisition mode
(≥16 averages)
2mV/divto3.98mV/div ±[(3% +(6% × | net offset/1V | )) ×
| reading -- net offset | + offset accuracy
+ 0.08 division × V/division]
4 mV/div to 99.5 mV/div ±[(2.5% +(2% × | net offset/1V | )) ×
| reading -- net offset | + offset accuracy
+ 0.08 division × V/division]
100 mV/div to 1 V/div ±[(2.5% +(2% × | net offset /10V | ))
× | readi ng -- net offset | + offset
accuracy + 0.08 division × V/division]