User`s guide

6
Characteristics and Specifications
Characteristics and Specifications
Characteristics and specifications for the N2790A Differential Voltage Probe are
shown below.
Electrical Characteristics
Input Characteristics
1
Refer to the warnings on page 8 for further details on the input voltage safety rating.
2
Refer to the derating plot on page 12
Attenuation ratios 50:1 and 500:1 (Selectable via switch on probe.)
Bandwidth (-3 dB)* 100 MHz
Gain Accuracy* \4% @ 0-20
o
C, \2% @ 20-30
o
C, \4% @ 30-55
o
C
DC CMRR -70 dB @ 500VDC
AC CMRR -80 dB @ 50/60 Hz
-50 dB @ 100 kHz
-50 dB @ 1 MHz
Input impedance Between inputs: 8 M , 3.5 pF
Noise referenced to input < 300 mVrms @ 500:1
< 50 mVrms @ 50:1
Propagation Delay 14.0 ns @ 50:1, 12.8 ns @ 500:1
Switch positions 500:1, 50:1
Internal power Autoprobe interface
*Denotes warranted specification after 20 minute warm-up
Cable length 170 cm (66.9 inches)
Length of input leads 40 cm (15.7 inches)
Maximum common mode
operating voltage
(rms or DC + peak AC)
1
600V CAT III
1000V CAT II
Maximum common mode
operating voltage derating
frequency
2
2 MHz
Maximum differential mode
operating voltage
(DC + peak AC)
1
1400 V @ 500:1
140 V @ 50:1
Ω