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General Information 21
Table 1-2a. Performance Specifications for Series 665xA
1
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:
2
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:
2
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 C)
Nominal line voltage:
Frequency:
100, 120, 220, 240 Vac (-13%, +6 %)
230 Vac
3
(-10%, +10%)
50/60 Hz
Output Terminal Isolation
±240 Vdc (maximum, from chassis ground)
Notes:
1
For Supplemental Characteristics, see Table 1-2b.
2
Specification may degrade slightly when unit is subjected to an RF field ≥ 3V/meter.
3
For 230Vac operation, unit is internally set to 240Vac