Agilent Technologies N2783B Manual de usuario descargar pdf (Pagina 11)

11

InfiniiMax Active Probe System Overview - InfiniiMax II Probing System

Overcoming measurement challenges with Inﬁ niiMax probe

Inﬁ niiMax probe is not just for

Inﬁ niium scope.

The beneﬁ ts of Agilent’s award winning In-

ﬁ niiMax probes are not restricted to Agilent

Inﬁ niium oscilloscopes. A variety of acces-

sories are available that allow you to use

Inﬁ niiMax probes with other test equipment,

such as spectrum analyzers and sampling

oscilloscopes.

To learn more about how to use the Inﬁ -

niiMax probe with your test equipment other

than Agilent Inﬁ niium oscilloscopes, refer to

the Agilent literature number 5989-1869EN.

Operating at high or low

temperatures

You may need to monitor a system in a

temperature chamber with an oscilloscope

probe to verify performance over a wide

range of operating temperatures, or to

determine the cause of failures at high or

low temperatures. Agilent Inﬁ niiMax I/II

probe ampliﬁ ers have a speciﬁ ed operating

temperature range from 5° C to 40°C. How-

ever, the probe heads can be operated over

a much wider range. You can use the Agilent

N5450A extension cable set to physically

separate the probe heads from the probe

ampliﬁ ers. This will allow you to operate the

probe heads inside a temperature chamber

with the probe ampliﬁ er located outside the

temperature chamber. To learn more about

how to extend the operating range of the

Inﬁ niiMax probes in temperature, refer to

the Agilent literature number 5989-7587EN.

Increasing the voltage dynamic

range and offset range

The dynamic range of the Inﬁ niiMax probes

is 5 V p-p for Inﬁ niiMax I and 3.3 V p-p for

Inﬁ niiMax II. For applications that need to

measure larger signals with faster edges,

the N2880A in-line coaxial attenuator kit

allows you to increase the dynamic range

of the probe system up to 50 Vpp and the

offset range up to +/-30V, without affecting

the bandwidth or rise time characteristics of

the probe system. The N2881A DC blocking

capacitors can be used in series with the

N2880A Inﬁ niiMax in-line attenuator to

block out unwanted DC components of the

input signal up to 30 V. To learn more about

how to extend the operating range of the

Inﬁ niiMax probes in input range, refer to the

Agilent literature number 5989-7587EN.

How would I measure small AC

riding on top of large DC with

Inﬁ niiMax probe?

It is challenging to measure very small

signals riding on top of large signals with

scopes, as most scopes have limited

dynamic ranges and offset ranges. Consider

using an Inﬁ niiMax active probe which

provides a huge offset range that can allow

you to make measurements you need. To

learn more about how to use the Inﬁ niiMax

probe’s offset range, refer to the Agilent

literature number 5990-8255EN and 5988-

9264EN.

plus probe tip

minus probe tip

differential

ampliﬁ er

probe scope

scope channel

probe offset

used when probing

signal ended signals

normal scope

channel offset

used when probing

differential signals

note: minus probe tip not present if

using signal-ended probe heads

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