
7
N2803A with
N5439A and
N5447A
(ZIF 200Ω)
N2803A with
N5439A and
N5440A
(ZIF 450Ω)
N2803A with
N5445A
(browser)
N2803A with
N5441A
(solder-in)
N2803A with N5444A
(SMA adapter)
Probe bandwidth
(-3dB), probe only
28 GHz (typical) 28 GHz (typical),
26 GHz*
(warranted)
30 GHz (typical),
28 GHz*
(warranted)
17.2 GHz (typical) 28 GHz
Rise and fall time,
probe only
20.9 psec
(10-90%),
13.8 psec
(20-80%)
20.9 psec (10-
90%),
13.8 psec (20-80%)
16.2 psec (10-
90%),
10.9 psec (20-
80%)
34.8 psec
(10-90%),
26.6 psec
(20-80%)
18.8 psec (10-90%),
12.7 psec (20-80%)
System bandwidth
(-3dB) with DSO/
DSAX93204A
28 GHz 28 GHz 30 GHz 16 GHz 28 GHz
Rise and fall time with
DSO/DSAX93204A
15.5 psec
(10 -90%) 11.0
psec (20-80%)
15.5 psec
(10 -90%) 11.0
psec (20-80%)
14.3 psec
(10 -90%) 10.2
psec (20-80%)
27.1 psec
(10 -90%) 19.2 psec
(20-80%)
15.5 psec (10 -90%)
11.0 psec (20-80%)
Input capacitance Cdiff=32fF,
Cse=44fF
Cdiff=32fF,
Cse=44fF
Cdiff=35fF,
Cse=50fF
Cdiff=77fF,
Cse=105fF
N/A
DC input resistance* Rdiff=50kΩ ±2%,
Rse=25kΩ ±2%
Rdiff=100kΩ ±2%, Rse=50kΩ ±2%
55 Ω to Vterm
Input resistance >
10 kHz
Rdiff=500 Ω,
Rse=250 Ω
Rdiff=1kΩ, Rse=500 Ω
50 Ω to 0.909x Vterm
Input voltage range
(differential or single-
ended)
0.8Vpp, ±0.4V
(HD2&3 <-38db),
2.5Vpp, ±1.25V
(HD2&3 <-34db)**
1.6Vpp, ±0.8V (HD2&3 <-38db),
2.5Vpp, ±1.25V (HD2&3<-34db)**
2.5 Vrms
Input common mode
range
±6V DC to 250Hz
±1.25V > 250Hz
±12V DC to 250Hz
±2.5V > 250Hz
±12V DC to 250Hz
±2.5V > 250Hz
(must not exceed max
input voltage)
DC attenuation ratio 3:1 6:1
Offset range ±8V when probing
a single-ended
signal
±16V when probing a single-ended signal ±16V when probing a
single-ended signal (must
not exceed max
input voltage)
Noise referenced to
input, probe only
2mVrms
4mVrms
Maximum input
voltage
18V peak Cat I Same as input voltage
range
Performance characteristics (of N2803A, 30 GHz probe amplifer, with each probe head)
N2802A: BW=25 GHz, tr=17.4 psec N2801A: BW=20 GHz, tr=21.7 psec N2800A: BW=16 GHz, tr=27.1 psec
* Denotes warranted characteristic. All others are typical.
** Harmonic distortion < -38 dB is standard; < -34 dB wider input range with slightly increased distortion
InfiniiMax Active Probe System Overview - InfiniiMax III Probing System
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