Agilent Technologies InfiniiVision 6000 Series Manuale Utente Scaricare il pdf (Pagina 8)

8

High Voltage Differential Active Probes

• 25 MHz 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 probe to make safe and

accurate floating measurements

with oscilloscope. The N2790A,

N2791A and N2891A high voltage

differential probes allow conventional

earth-grounded Agilent 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 Mohm 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

Agilent’s AutoProbe interface where

the probe power is supplied by the

Agilent oscilloscope’s probe interface.

1141A 200 MHz 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

±30V. This probe works with any 50-Ω

input oscilloscope including 5000,

6000 and 7000 Series.

1141A 200 MHz differential probe with

1142A probe control and power module

Characteristics for N2790A, N2791A and N2891A differential probe

N2790A N2791A N2891A

Bandwidth 100 MHz 25 MHz 70 MHz

Risetime 3.5 nsec 14 nsec 5 nsec

Attenuation ratio 50:1 / 500:1 10:1 / 100:1 100:1 / 1000:1

CMRR -80 dB at 50/60 Hz

-50 dB at 1 kHz

-50 dB at 1 MHz

-80 dB at 50/60 Hz

-40 dB at 1 MHz

-80 dB at 50/60 Hz

-60 dB at 20 kHz

Max input voltage

to ground

±1000 V (CAT II)

±600 V (CAT III)

±700 V at 100:1

±70 V at 10:1

±7000 V at 1000:1

±700 V at 100:1

Max input voltage

between two

inputs

±1400 V at 500:1

±140 V at 50:1

±700 V at 100:1

±70 V at 10:1

±7000 V at 1000:1

±700 V at 100:1

Max number

of probes

supported by

5000/6000/7000

Series

444

Characteristics for 1141A differential

probe

1141A

Bandwidth 200 MHz

Risetime 1.75 nsec

Attenuation ratio 10:1 and 100:1

with attenuater

High CMRR 3000:1 at 1-MHz

10:1 at 100-MHz

Input

impedance

Between inputs:

1 MΩ, 7 pF

Max input voltage 200 Vdc + peak ac

(probe alone)

500 Vdc + peak ac

(with attenuator)

Max number

of probes

supported by

5000/6000/7000

Series

4

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 21 22

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