Specifications
General Information 38
Table 1-5b. Supplemental Characteristics for Series 669xA (continued)
1
 Parameter  Agilent Model Number 
 6690A 6691A 6692A   
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
drop
(R
sense
 +) + 2V
drop
(V
rating
)/(V
rating
 + 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. 
Maximum Input Power: 
9000 VA,  
7950 W, 
 175 W (with no load) 
Maximum AC Line Current Ratings 
Range 1 
 Rms line current: 
26 A *** 
 Line fuse: 
40 AM 
Range 2 
 Rms line current: 
13 A*** 
 Line fuse: 
20 AM 
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):*** 
45 ms  60 ms  100 ms     
 Full-load programming speed up/down time (time for output to settle within 4 LSBs of the final value):*** 
150 ms 185 ms  280 ms     
 No-load downprogrammiug discharge time (time for output to fall to 0.5 V when programmed from full voltage 
 to zero volts): 
340 ms 650 ms  870 ms     
** All values exclude command processing time. 
*** With full resistive load = V
RATED
/I
RATED
Notes: 
l
For Performance Specifications, see Table l-5a. 










