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N2893A Datasheet, PDF (12/29 Pages) List of Unclassifed Manufacturers – InfiniiVision Oscilloscope Probes and Accessories
12 | Keysight | InfiniiVision Oscilloscope Probes and Accessories - Data Sheet
High-voltage Differential
Active Probes
–  25 to 800 MHz bandwidth
–  Switchable attenuation
–  Measure up to 1,400 V CAT II and 7 kV
CAT I
N2790A/91A and N2891A high
voltage differential probes
Oscilloscope users often need to make
floating measurements where neither point
of the measurement is at earth ground.
Use N2790A, N2791A, or N2891A high
voltage differential probes to make safe
and accurate floating measurements with
an oscilloscope. The N2790A, N2791A,
and N2891A high voltage differential
probes allow conventional earth-grounded
Keysight oscilloscope to be used for
floating signal measurements.
Each probe offers user-selectable
attenuation settings that make it highly
versatile, allowing it to be used for a
broad range of applications. The probe
comes with probe tip accessories for use
with small and large components in tight
spaces.
The N2791A and N2891A are
compatible with any oscilloscope with 1
MΩ BNC input. The N2791A and N2891A
probe power is supplied by included 4x AA
batteries or USB host port of the scope or
PC via a supplied USB power cable. The
N2790A is compatible with the Keysight’s
AutoProbe interface where the probe
power is supplied by the Keysight
oscilloscope’s probe interface.
Characteristics for N2790A, N2791A and N2891A differential probe
Bandwidth
Risetime
Attenuation ratio
CMRR
Input impedance
(between inputs)
Max input voltage
to ground
Max input voltage
between two
inputs
Max number of
probes supported
by 3000 X-/4000
X-/ 5000/6000
/7000 Series
N2790A
N2791A
100 MHz
25 MHz
3.5 ns
50:1 / 500:1
14 ns
10:1 / 100:1
–80 dB at 50/60 Hz –80 dB at 50/60 Hz
–50 dB at 1 kHz –40 dB at 1 MHz
-–50 dB at 1 MHz
8 MΩ//3.5 pF
8 MΩ//8 pF
N2891A
70 MHz
5 ns
100:1 / 1000:1
–80 dB at 50/60 Hz
–60 dB at 20 kHz
100 MΩ//5 pF
±1000 V (CAT II)
±600 V (CAT III)
±1400 V at 500:1
±140 V at 50:1
±700 V at 100:1
±70 V at 10:1
±700 V at 100:1
±70 V at 10:1
±7000 V at 1000:1
±700 V at 100:1
±7000 V at 1000:1
±700 V at 100:1
4
4
4
1141A 200 MHz differential
probe
Characteristics for 1141A
differential probe
The 1141A is a 1x FET differential probe
with 200‑MHz bandwidth and a 3000:1
CMRR. The probe has a high-input
resistance and low-input capacitance of 7
pF to minimize circuit loading. The 1141A
must be used with 1142A probe control
and power module, which controls input
coupling modes dc, dc with variable offset,
and dc reject. Two attenuators, 10x and
100x are provided to expand the linear
differential input range to ±30 V. This
probe works with any 50‑Ω input
oscilloscope including 3000 X-, 4000 X-,
5000, 6000X, 6000 300 MHz - 1 GHz, and
7000 Series.
Bandwidth
Risetime
Attenuation ratio
CMRR
Input
impedance
Max input voltage
Max number
of probes
supported by
3000 X-/4000 X-
/6000 X-
/5000/6000/7000
Series
1141A
200 MHz
1.75 ns
1:1 without attenuator,
10:1 and 100:1
with attenuater
3000:1 at 1 MHz
10:1 at 100 MHz
Between inputs:
1 MΩ//7 pF
200 Vdc + peak ac
(probe alone)
500 Vdc + peak ac
(with attenuator)
4
1141A 200-MHz differential probe with 1142A probe
control and power module