Datasheet

09 | Keysight | N2790A 100 MHz, N2791A 25 MHz and N2891A 70 MHz High-voltage Differential Probes - Data Sheet
Product number N2790A N2791A N2891A
Bandwidth (—3 dB) ≥ 100 MHz probe bandwidth
1
≥ 25 MHz probe bandwidth ≥ 70 MHz
Rise time (calculated) ≤ 3.5 ns ≤ 14 ns ≤ 5 nsec
Attenuation 50:1/500:1 10:1/100:1 100:1/1000:1
Gain accuracy (% of reading) ± 2% at 20 to 30 ºC
± 4% at 0 to 20 ºC and 30 to 50 ºC
1
DC CMRR –70 dB at 500 VDC
AC CMRR –80 dB at 50/60 Hz –80 dB at 50/60 Hz –80 dB at 50/60 Hz
–50 dB at 1 kHz –40 dB at 1MHz –60 dB at 20 kHz
–50 dB at 1 MHz
Propagation delay 14 nsec at 50:1
2.8 nsec at 500:1
Input R//C (each input to ground) 4 Mohm // 7 pF 4 Mohm // 10 pF 50 Mohm // 7 pF
Input R//C (between inputs) 8 Mohm // 3.5 pF 8 Mohm // 8 pF 100 Mohm //5 pF
Max differential operating voltage
(DC+PeakAC or RMS)
± 1400 V at 500:1 ± 700 V at 100:1 ± 7000 V or 5000 Vrms at 1000:1
± 140 V at 50:1 ± 70 V at 10:1 ± 700 V or 700 Vrms at 100:1
Max common mode operating voltage
(DC+PeakAC or RMS)
± 1000 V (CAT II) ± 700 V at 100:1 ± 7000 V or 5000 Vrms at 1000:1
± 600 V (CAT III) ± 700 V at 10:1 ± 7000 V or 5000 Vrms at 100:1
Max nondestructive voltage ± 1500 VDC + Peak AC differential
mode
± 1000 Vrms (CAT II) differential
and common mode
± 7000 V (DC + Peak AC)
± 1300 Vrms (CAT II) common mode ± 5000 Vrms at 1000:1 and 100:1
in differential and common mode
(Main Isolated)
Output maximum voltage range ± 2.8 V into 1 Mohm (500:1) 7 V into 1 Mohm (100:1) 7 V into 1 Mohm (1000:1)
Scope’s input impedance 1 Mohm AutoProbe interface 1 Mohm BNC interface 1 Mohm BNC interface
Output offset Adjustable ± 7.5 mV (typical) ± 5 mV (typical)
Noise referenced to input < 300 mVrms at 500:1
< 50 mVrms at 50:1
Temperature - operating –10 to 50 ºC –10 to 40 ºC –10 to 40 ºC
Temperature - non-operating –51 to 71 ºC –30 to 71 ºC –30 to 71 ºC
Humidity - operating 80% RH at 40 ºC 25 to 85% RH 25 to 85% RH
Humidity - non-operating 90% RH at 65 ºC 25 to 85% RH 25 to 85% RH
Operating altitude 2,000 m 3,000 m 3,000 m
Nonoperating altitude 15,300 m 15,300 m 15,300 m
Vibration Keysight class GP and MIL-PRF-
28800F class 3 random
Shock Tip end: 400g 1/2 sine wave
AutoProbe BNC End: 50g 1/2 sine
wave Probe circuit box: Keysight
class B1 and MIL-PRF-28800F
class 3
Standard accessories 2 each browser tips (black and red) 2 each alligator clips (black and red) 2 each high-voltage alligator clips
(black and red)
2 each alligator plunger clips (black
and red)
2 each hook clips (black and red) 2 each safety hook adapters (black
and red)
2 each pincer clips (black and red) USB power cord (2 m) USB power cord (2 m)
2 each of 4 colored ID tags 4 AA batteries 4 AA batteries
DC offset adjustment tool Manual Manual
Manual
Safety specifications IEC61010-031 IEC61010-031 IEC61010-031
1. Denotes warranted specification after 20 minute warm-up, all others are typical.
Performance Characteristics