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Specifications - A
51
Table A-2. Supplemental Characteristics (continued)
Parameter HP 66332A HP
6631B/6632B/6633B/6634B
Dynamic Measurement
Accuracy
Instantaneous Voltage:
Instantaneous Current:
0.03% + 5 mV
0.6% + 2 mA
1
not applicable
Dynamic Measurement
System
Buffer Length:
Sampling Rate Range:
4096 points
15.6µs−31,200s
not applicable
Measurement Time
(voltage or current)
50 ms average
(includes the default time of 30 ms
2
for
acquiring data, and a 20 ms data processing
overhead)
Command Processing
Time
4 ms average
(for output to begin to change
following receipt of digital data)
Remote Sense Capability
Up to 2 V can be dropped across each load lead.
(add 2 mV to the voltage load regulation
specification for each 1 V change in the positive
output lead due to load current change.)
Savable Instrument States
(applies only in SCPI mode)
4 (in locations 0 to 3)
RS-232 Interface
Capabilities
Baud rates:
Data formats:
Language:
300 600 1200 2400 4800 9600
7 bits even or odd parity; 8 bits without parity
SCPI or COMPatibility
3
HP-IB Interface
Capabilities
Language:
Interface:
SCPI or COMPatibility
3
AH1, C0, DC1, DT1, E1, L4, PP0, RL1, SH1,
SR1, T6
INH/FLT Characteristics
Maximum ratings:
FLT Terminals:
INH Terminals:
16.5 Vdc between terminals 1 and 2; 3 and 4;
and from terminals 1 or 2 to chassis ground
Low-level output current = 1.25 mA max.
Low-level output voltage = 0.5 V max.
Low-level input voltage = 0.8 V max.
High-level input voltage = 2 V min.
Low-level input current = 1 mA
Pulse width = 100 µs min.
Time delay = 4 ms typical
1
For full scale current changes with a risetime of 20 µs, an additional 0.5% error exists in the first data
point in the buffer after the change. The error percentage increases proportionally with the decrease in
risetime.
2
This time may be reduced by changing the default conditions of 2048 data points, however, measurement
accuracy will be reduced.
3
COMPatibility language is used to program the HP 663xA Series power supplies.