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Table A-2. Supplemental Characteristics (continued)
Parameter
Measurement Time
(voltage or current)
Command Processing
Time
Remote Sense Capability
Savable Instrument States
(applies only in SCPI mode)
RS-232 Interface
Capabilities
HP-IB Interface
Capabilities
INH/FLT Characteristics
Digital I/O Characteristics
1
Time may be reduced by changing the default conditions of 2048 data points, however, measurement uncertainty due to noise
will increase.
2
COMPatibility language is used to program the HP 663xA Series power supplies. Not all HP 66311A capabilities are available
when using the COMPatibility language.
(includes the default time of 30 ms
Up to 4 V can be dropped across each load lead.
specification for each 1 V change in the positive
Baud rates:
Data formats:
Language:
Language:
Interface:
Maximum ratings:
16.5 Vdc between terminals 1 and 2; 3 and 4; and
FLT Terminals:
INH Terminals:
Maximum ratings:
Digital OUT Port
0,1,2 (open
collector)
HP 66311A
50 ms average
data, and a 20 ms data processing overhead)
4 ms average
(for output to begin to change
following receipt of digital data)
(add 2 mV to the voltage load regulation
output lead due to load current change.)
4 (in locations 0 to 3)
300 600 1200 2400 4800 9600
7 bits even or odd parity; 8 bits without parity
SCPI or COMPatibility
SCPI or COMPatibility
AH1, C0, DC1, DT1, E1, L4, PP0, RL1, SH1,
SR1, T6
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
same as INH/FLT Characteristics
Output leakage @ 16V = 0.1 mA (ports 0,1)
Output leakage @ 5V = 0.1 mA (ports 0,1)
Low-level output sink current @ 0.5 V = 4 mA
Low-level output sink current @ 1 V = 50 mA
Specifications - A
1
for acquiring
2
2
= 12.5 mA (port 2)
= 0.25 mA (port 2)
121
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