12
Other Functions
Store/Load
Ten instrument control settings, including com-
parator limits and list sweep programs, can be
stored and loaded into and from the internal non-
volatile memory. Ten additional settings can also
be stored and loaded from each memory card.
GPIB
All control settings, measured values, comparator
limits, and list sweep program can be controlled or
monitored. Uses ASCII and 64-bit binary data format.
GPIB buffer memory can store measured values for
a maximum of 128 measurements and output packed
data over the GPIB bus. Complies with IEEE-488.1
and 488.2. The programming language is Test and
Measurement Systems Language (TMSL).
GPIB interface functions
SH1, AH1, T5, L4, SR1, RL1, DC1, DT1, C0, E1
Self test
Softkey controllable. Provides a means to confirm
proper operation.
Option 4285A-001 (Internal DC Bias)
Adds the variable DC bias voltage function.
DC bias level
The following DC bias level accuracy is specified
for an ambient temperature range of 23 °C ± 5 °C.
Multiply the temperature induced setting error, K
t
listed in Figure 1-5 for the temperature range of
0 °C to 55 °C.
Voltage range Resolution Setting accuracy
±(0.000 to 4.000) V 1 mV ±(0.1% of setting +1 mV)
±(4.002 to 8.000) V 2 mV ±(0.1% of setting +2 mV)
±(8.005 to 20.000) V 5 mV ±(0.1% of setting +5 mV)
±(20.01 to 40.00) V 10 mV ±(0.1% of setting +10 mV)
A maximum DC bias current of 100 mA can be
applied to the DUT.
DC bias monitor terminal
DC bias voltage or current can be monitored at the
rear panel BNC connector.
The following monitor accuracies are applied when
the digital volt meter whose input impedance is ≥
10 MΩ is used.
• DC bias voltage monitor
DC bias voltage across the DUT 1
Output impedance: 11 kΩ
Monitor accuracy: ±(0.2% of reading + 2 + 0.8
I
dut
) mV
where:
I
dut
is current flowing through the DUT in [mA].
• DC bias current monitor
DC bias current through the DUT 10 Ω (1 V at
100 mA)
Output impedance: 10 kΩ
Monitor accuracy: ±(1% of reading + 0.3) mA
Other Options
Option 4285A-700: No DC bias
Option 4285A-002: Accessory Control Interface
Allows the 4285A to control the Agilent 42841A
bias current source or the Agilent 42851A preci-
sion Q adapter.
The voltage ratio meaurement accuracy, when the
4285A is used with the 42851A precision Q
adapter, is described in the 42851A’s operation
manual.
Option 4285A-201: Handler interface
Option 4285A-202: Handler interface
Option 4285A-301: Scanner interface
Option 4285A-710: Blank panel
Option 4285A-907: Front handle kit
Option 4285A-908: Rack mount kit
Option 4285A-909: Rack flange and handle kit
Option 4285A-915: Add service manual
Option 4285A-ABA: Add English manual
Option 4285A-ABD: Add German manual
Option 4285A-ABJ: Add Japanese manual
(65 páginas)
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