Agilent Technologies N3280A Manuale Utente
B - Performance and Calibration Procedures
84
Table B-1. Equipment Required (continued)
Oscilloscope
Sensitivity: 1 mV/div.
Bandwidth Limit: 20 to 30 MHz
Probe: 1:1 with RF tip
Bandwidth Limit: 20 to 30 MHz
Probe: 1:1 with RF tip
Agilent Infinium or
equivalent
equivalent
RMS voltmeter
True RMS
Bandwidth: 20 Mhz min.
Sensitivity: 100
Bandwidth: 20 Mhz min.
Sensitivity: 100
µV
Rhode & Schwartz
Model URE3 RMS-P-P
Voltmeter
Model URE3 RMS-P-P
Voltmeter
Variable-voltage transformer
or ac source
or ac source
Adjustable to highest rated input voltage
range. Power: 500 VA
range. Power: 500 VA
Agilent 6800 series
Tektronixs current probe
amplifier and power module
amplifier and power module
20mA/div
AM503B
TM501 or 2A
TM501 or 2A
Pulse/function generator
+/- 1V Square Wave , 400-1kHz
Agilent 8116A
Load resistor, 20 ohms
20 ohm 10W
0811-3896 or equivalent
Resistor 0.2 ohm
5- 1 ohm resistors in parallel
5 – 0699-0208 or equivalent
Resistor 1k ohm
1k ohm for 15mA range accuracy
0757-0280 or equivalent
Resistor 20K ohm
20k ohm for 0.5mA range accuracy
0757-0449 or equivalent
Resistor 16k ohm
16.2k ohm for rms noise measurements
0757-0447 or equivalent
Resistor 50 ohm
50 ohm series resistor for noise
measurements
measurements
0757-0706 or equivalent
Capacitor 10uF for voltage
transient response
transient response
3- 3.3uF film type capacitors in parallel
3 – 0160-7308 or equivalent
Capacitor for current
transient response
transient response
0.47uF film type capacitor
1060-0970 or equivalent
Performance & Verification Tests
Enter all of the performance test results and calculated measurements in the Performance Test Record
Form that is provided at the end of this section.
Form that is provided at the end of this section.
Measurement Techniques
If more than one meter or if a meter and an oscilloscope are used, connect each to the terminals by a
separate pair of leads to avoid mutual coupling effects. For constant voltage dc tests, connect only to HI
sense and LO sense terminals, since the unit regulates the voltage that appears at the sense terminals, not
the output terminals. Use twisted-pair wiring to avoid noise pickup on the test leads.
separate pair of leads to avoid mutual coupling effects. For constant voltage dc tests, connect only to HI
sense and LO sense terminals, since the unit regulates the voltage that appears at the sense terminals, not
the output terminals. Use twisted-pair wiring to avoid noise pickup on the test leads.
NOTE:
When using the Agilent 3458A as an ammeter, always select the specific current measurement
range that you will be using. Do not use the autoranging feature of the ammeter, as this may
introduce noise in your current measurements by toggling between measurement ranges.
Always use the lowest range possible to provide the best measurement accuracy.
range that you will be using. Do not use the autoranging feature of the ammeter, as this may
introduce noise in your current measurements by toggling between measurement ranges.
Always use the lowest range possible to provide the best measurement accuracy.