General Information 31
Table 1-4a. Performance Specifications for Series 668xA
1
Parameter Agilent Model Number
6680A 6681A 6682A 6683A 6684A
Output Ratings
Voltage:
0 - 5 V 0 - 8 V 0- 21 V 0 - 32 V 0 - 40 V
Current:*
0 - 875 A 0 - 580 A 0 - 240 A 0 - 160 A 0 - 128 A
*Derated linearly 1%/°C from 40 ° C to 55 °C
Programming Accuracy (@ 25 ± 5 °C)
Voltage: 0.04% +
5 mV 8 mV 21 mV 32 mV 40 mV
Current: 0 . l % +
450 mA 300 mA
125 mA
85 mA
65 mA
Ripple & Noise (from 20 Hz to 20 MHz with outputs ungrounded, or with either output terminal grounded)
Constant Voltage: rms
1.5 mV 1.5 mV 1.5 mV 1.0 mV 1.0 mV
Constant Voltage: p-p
10 mV 10 mV 10 mV 10 mV 10 mV
Readback Accuracy (from front panel or over GPIB with respect to actual output @ 25 ± 5 °C)
Voltage: 0.05% +
7.5 mV 12 mV 32 mV 48 mV 60 mV
±
±±
±Current 0.1% +
600 mA 400 mA 165 mA 110 mA 90 mA
Load Regulation (change in output voltage or current for any load change within ratings)
Voltage 0.002% +
190 µV 300 µV 650 µV
1.1 mV 1.5 mV
Current: 0.005% +
65 mA 40 mA 17 mA 12 mA 9 mA
Line Regulation (change in output voltage or current for any line change within ratings)
Voltage: 0.002% +
190 µV 300 µV 650 µV
1.1 mV 1.5 mV
Current: 0.005% +
65 mA 40 mA 17 mA 12 mA 9 mA
Transient Response Time (for the output voltage to recover to within 150 mV following any step change from 100% to
50% or 50% to 100% of the rated output current): < 900 µs
AC Line Input * (selectable - see Appendix C)
Range 1 (180-235 Vac)
Nominal phase-to-phase voltage:
Input frequency:
200, 208 Vac (3-phase)
50/60 Hz *
Range 2 (360-440 Vac)
Nominal phase-to-phase voltage:
Input frequency:
400, 416 Vac (3-phase)
50/60 Hz
* Power source can be DELTA or WYE.
* For 50 Hz on Range 1 only, derate output voltage linearly from 100% at 200 Vac to 95% at 180 Vac.
Notes:
1
For Supplemental Characteristics, see Table 1-4b.
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