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General Information 37
Table 1-4b. Supplemental Characteristics for Series 668xA (continued)
1
Parameter Agilent Model Number
6680A 6681A 6682A 6683A 6684A
Remote Sensing Capability
Voltage Drop Per Lead:
Load Voltage:
Up to 1/2 of rated output voltage.
Subtract voltage drop in load leads from specified output
voltage rating.
Load Regulation:
Degradation due to load lead drop in--output: ∆mV (regulation) = Vdrop(R
sense
-)
Degradation due to load lead drop in + output:
∆mV (regulation) = V
dro
p
(R
sense
+) + 2V
dro
p
(V
ratin
g
)/(V
ratin
g
+ 10 V)
where R
sense
_ and R
sense
+
are resistances of respective sense leads.
Maximum Reverse Voltage Current Sink Capability: *
·
With ac input power applied and the dc output reverse biased
by an external dc source, the supply will continuously
withstand without damage a current equal to its output
current rating.
* Current must be limited by user's external dc source.
Typical Common Mode Noise Current **
rms:
1.5 mA
Peak-to-Peak
10 mA
Load Voltage:
Subtract voltage drop in load leads from specified output
voltage rating.
** From 20 Hz to 2 MHz, referenced to signal ground binding post.
Maximum Input Power: 7350 VA, 6000 W, 160 W with no load
Maximum AC Line Current Ratings
Range 1
Rms line current:
21.4 A (27.7 A) ***
Line fuse:
30 AM
Range 2
Rms line current:
10.7 A (14.4 A) ***
Line fuse:
16 AM
*** Includes 5% unbalanced voltage phase condition.
Output Voltage Programming Response Time**
Programming Rise/Fall Time (time for output to change from 90 % to 10% or from 10% to 90% of its total
excursion):***
9 ms
12 ms 45 ms 60 ms 60 ms
Full-load programming speed up/down time (time for output to settle within 4 LSBs of the final value):***
27 ms
35 ms 140 ms 185 ms 185 ms
No-load downprogrammiug discharge time (time for output to fall to 0.5 V when programmed from full voltage to
zero volts):
90 ms
100 ms 475 ms 650 ms 575 ms
** All values exclude command processing time.
*** With full resistive load = V
RATED
/I
RATED
Notes:
l
For Performance Specifications, see Table l-4a.