General Information 25
Table 1-2a. Performance Specifications for Series 665xA1
Parameter Agilent Model Number
6651A 6652A 6653A 6654A 6655A
Output Ratings
Voltage: 0 - 8 V 0 - 20 V 0- 35 V 0 - 60 V 0 - 120 V
Current:@ 40 °C 0 - 50 A 0 - 25 A 0 - 15 A 0 - 9 A 0 - 4 A
Current:@ 50 °C 0 - 45 A 0 - 22.5 A 0 - 13.5 A 0 - 8.1 A 0 - 3.6 A
Current:@ 55 °C
0 - 42.5 A 0 - 21.3 A 0 - 12.8 A 0 - 7.7 A 0 -3.4 A
Programming Accuracy (@ 25 ± 5 °C)
Voltage: 0.06% + 5 mV
10 mV 15 mV
26 mV 51 mV
Current: 0 . l5 % + 60 mA 25 mA
13 mA
8 mA
4 mA
Ripple & Noise (from 20 Hz to 20 MHz with outputs ungrounded, or with either output terminal grounded)
Constant Voltage: rms 300 µV 300 µV 400 µV 500 µV 700 µV
Constant Voltage: p-p 3 mV 3 mV 4 mV 5 mV 7 mV
Constant Current: rms 25 mA
10 mA 5 mA 3 mA 2 mA
Readback Accuracy (from front panel or over GPIB with respect to actual output @ 25 ± 5 °C)
Voltage: 0.07% + 6 mV 15 mV 25 mV 40 mV 80 mV
+Current 0.15% + 67 mA 26 mA 15 mA 7 mA 3 mA
-Current 0.35% +
100 mA 44 mA 24 mA 15 mA 7 mA
Load Regulation (change in output voltage or current for any load change within ratings)
Voltage: 1 mV 2 mV 3 mV 4 mV 5 mV
Current:
2 mA 1 mA 0.5 mA 0.5 mA 0.5 mA
Line Regulation (change in output voltage or current for any line change within ratings
Voltage: 0.5 mV 0.5 mV 1 mV 1 mV 2 mV
Current:
2 mA 1 mA 0.75 mA 0.5 mA 0.5 mA
Transient Response Time (for the output voltage to recover to its previous level (within 0.1% of the rated voltage or
20 mV, whichever is greater) following any step change in load current up to 50% of the rated current.
< 100 µs
AC Input Ratings (selectable via internal switching - see Appendix B)
Nominal line voltage
100,120,220,240 Vac:
230 Vac:
Frequency range:
-13%, +6 %
-10%, +10%
47-63 Hz
Output Terminal Isolation ±240 Vdc (maximum, from chassis ground)
Notes: 1For Supplemental Characteristics, see Table 1-2b.