11
Agilent 4285A: standard
Range Accuracy
Normal V 5 m Vrms to 2 Vrms ±(8% + 0.4 fm% + 1 mVrms)
I 200 µArms to 20 mArms ±(8% + 1 fm% 40 µArms)
Constant V 10 m Vrms to 1 Vrms ±(6% + 0.2 fm%+ 1 mVrms)
I 100 µArms to 20 mArms ±(6% + 0.2 fm%+ 40 µArms)
fm: test frequency in MHz
DC bias:
Standard: 0 V, 1.5 V and 2 V (Agilent 4284A only)
With
Option 4284A/4285A-001: 0 V to ±40 V Rear panel DC bias monitor, BNC connector
Range Resolution Accuracy
±(0.000 to 4.000) V 1 mV ±(0.1% to 1 mV)
1
±(4.002 to 8.000) V 2 mV ±(0.1% to 2 mV)
1
±(8.005 to 20.000) V 5 mV ±(0.1% to 5 mV)
1
±(20.01 to 40.00) V 10 mV ±(0.1% to 10 mV)
1
Measurement range
Parameter Range
|Z|, R, X: 0.01 mΩ to 99.9999 MΩ
|Y|, G, B: 0.01 nS to 99.9999 S
C: 4284A: 0.01 fF to 9.99999 F
4285A: 0.01 fF to 999.999 µF
L: 4284A: 0.01 nH to 99.9999 kH
4285A: 0.001 nH to 99.9999 H
D: 0.000001 to 9.99999
Q: 0.01 to 99999.9
q: -180.000° to 180.000°
∆% -999.999% to 999.999%
Display
LCD Dot-matrix type display. Capable of displaying: measured values, control
settings, comparator limits and decisions, list sweep tables, self test messages
and annunciations.
Correction function
Open/short: Eliminates measurement errors due to stray parasitic
impedance in the test fixture.
Load: Improves measurement accuracy by using a calibrated
device as a reference.
List sweep function
A maximum of ten frequencies or test levels can be programmed. Single or
sequential testing can be performed. When Option 4284A/4285A-001 is installed,
dc bias sweep can also be performed.
Specifications continued on page 12
Specifications
Continued from page 10
1. Refer to measurement accuracy.
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