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Specifications
Specifications
Table A-1 lists the specifications of the dc source. Specifications are warranted over the ambient
temperature range of 0 to 55 °C. Unless otherwise noted, specifications apply when measured at
the rear terminals after a 30-minute warm-up period.
Table A-1. Performance Specifications
Parameter HP 6631B HP 6632B
HP 66332A
HP 6633B HP 6634B
Output Ratings
Voltage:
Current:
0 − 8 V
0 − 10A
0 − 20 V
0 − 5A
0 − 50 V
0 − 2 A
0 − 100 V
0 − 1A
Programming Accuracy
(@ 25C ±5°C)
Voltage:
+Current:
0.05% + 5 mV
0.05% + 4 mA
0.05% + 10 mV
0.05% + 2 mA
0.05% + 20 mV
0.05% + 1 mA
0.05% + 50 mV
0.05% + 0.5 mA
DC Measurement
Accuracy
(via HP-IB or front panel
meters with respect to
actual output at 25C
±5°C)
Voltage:
Low Current range
−20 mA to +20 mA:
High Current range
+20 mA to +rated I:
−20 mA to −rated I:
0.03% + 2 mV
0.1% + 2.5 µA
1
0.2% + 1 mA
2
0.2% + 1.6 mA
0.03% + 3 mV
0.1% + 2.5 µA
1
0.2% + 0.5 mA
2
0.2% + 1.1 mA
0.03% + 6 mV
0.1% + 2.5 µA
1
0.2% + 0.25 mA
2
0.2% + 0.85 mA
0.03% + 12 mV
0.1% + 2.5 µA
1
0.2% + 0.25 mA
2
0.2% + 0.85 mA
Ripple and Noise
(in the range of 20 Hz to
20 MHz with outputs
ungrounded or with
either terminal grounded)
Normal mode voltage
(rms/p-p):
Fast mode voltage
(rms/p-p):
Current (rms):
0.3 mV/3 mV
3
1 mV/10 mV
3 mA
0.3 mV/3 mV
3
1 mV/10 mV
2 mA
0.5 mV/3 mV
3
1 mV/15 mV
2 mA
0.5 mV/3 mV
3
2 mV/25 mV
2 mA
Load Regulation
4
(change in output voltage
or current for any load
change within ratings)
Voltage:
Current:
2 mV
2 mA
2 mV
1 mA
4 mV
1 mA
5 mV
1 mA
Line Regulation
(change in output voltage
or current for any line
change within ratings)
Voltage:
Current:
0.5 mV
1 mA
0.5 mV
0.5 mA
1 mV
0.25 mA
1 mV
0.25 mA
Transient Response
Time
4
Normal mode:
Fast mode:
< 100 µs
< 50 µs
(for the output voltage to recover to its previous level within 0.1% of the voltage rating of the unit or 20 mV following a
change in load current of up to 50% of the output current rating)
1
This specification may degrade slightly when the unit is subjected to an RF field ≥3 V/meter.
2
Applies in SCPI mode, with current detector set to DC. With current detector set to ACDC, accuracy is 0.2% + four
times the fixed error value. In COMPatibility mode, accuracy is 0.2% + six times the fixed error value.
3
For HP 6631B, 6632B, and 66332A (from 1 MHz to 20 MHz ) = 0.3mV/15mV;
For HP 6633B and 6634B (from 1 MHz to 20 MHz ) = 0.5mV/15mV
4
Applies at rear terminals with unit set to remote sensing and with sense terminals externally jumpered to their
respective output terminals.