Open topic with navigation

SECTIONS IN THIS TOPIC

Connecting the InfiniiMax I and II probes (AutoProbe 1 interface-AutoProbe 1) to an 86100D DCA-X requires an N1022A active probe adapter. Connecting an InfiniiMax III probe (AutoProbe 2 interface-AutoProbe 2) to an 86100D DCA-X requires an N5477A sampling scope adapter.

TDR Probes

These probes are specifically designed for single-ended with an 86100C/D placed in TDR/TDT mode. TDR/TDT mode requires a 54753A single-ended TDR/TDT module or a 54754A differential TDR/TDT module be installed in the oscilloscope.

Model Type Interface Bandwidth Attenuation Input Z Dynamic Range
N1020A TDR SMA 6 GHz NA NA NA
N1021B TDR SMA Up to 18 GHz NA 100Ω NA

Active Differential Probes (InfiniiMode)

InfiniiMode compatible probes allow convenient measurements of differential, single ended, and common mode signals with a single probe tip without reconnecting the probe to change the connection. They are compatible with the Infiniium oscilloscope's AutoProbe interface, which completely configures the Infiniium series of oscilloscopes for the probes.

Model Type Interface Bandwidth Attenuation Input Z differential Dynamic Range
N7000/1/2/3A InfiniiMode
Active Differential		 AutoProbe 2 8 GHz (N7000A)
13  GHz (N7001A)
16 GHz (N7002A)
20  GHz (N7003A		 5:1 or 10:1 1 kΩ (differential mode) ±1.25V or 2.5Vpp (at 5:1)
±2.5V or 5Vpp (at 10:1)
N2830/1/2A InfiniiMode
Active Differential
InfiniiMax III+		 AutoProbe 1 4 GHz (N2830A)
8 GHz (N2831A)
13 GHz (N2832A)		 5:1 or 10:1 1 kΩ (differential mode) ±1.25V or 2.5Vpp (at 5:1)
±2.5V or 5Vpp (at 10:1)

Active Differential Probes

InfiniiMax probes provide a versatile probing solution for both single-ended active and differential probing. InfiniiMax probes consist of the probe amplifiers listed below and a large assortment of probing heads that attach to the probe amplifiers. All InfiniiMax probes connect to the oscilloscope using an AutoProbe interface. The InfiniiMax II 1168B/69B and InfiniiMax III N2800/1/2/3A are not compatible with the InfiniiVision series.

Model Type Interface Bandwidth Attenuation Input Z differential Dynamic Range
N2800/1/2/3A Active Differential
InfiniiMode III		 AutoProbe 2 16 GHz (N2800A)
20 GHz (N2801A)
25 GHz (N2802A)
30 GHz (N2803A)		 6:1 100 kΩ ±1.25V
1168/9B Active Differential
InfiniiMode II		 AutoProbe 1 10 GHz (1168B)
12 GHz (1169B)		 3.45:1 50 kΩ ±1.65V
1131/2/4A Active Differential
InfiniiMode I		 AutoProbe 1 3.5 GHz (1131B)
5 GHz (1132B)
7 GHz (1134B)		 10:1 50 kΩ  ±2.5V   

Single-Ended Active Probes

Single-ended active probes contain a small, active amplifier built into the probe body near the probe tip. This arrangement makes it possible to keep the probe input capacitance very low, usually less than 2 pF. This low capacitance results in high input impedance on high frequencies. It has the best overall combination of resistive and capacitive loading. With such low loading, active probes can be used on high-impedance circuits that would be seriously loaded by passive probes. Active probes are the least intrusive of all the probes.

Model Type Interface Bandwidth Attenuation Input Z Dynamic Range
1155A
Discontinued 		Single-Ended Active AutoProbe 1 750 MHz 10:1 1 MΩ, 2 pF NA
1156A
Discontinued 		Single-Ended Active AutoProbe 1 1.5 GHz 10:1 100 kΩ, 0.8pF 5 Vp-p
1157A
Discontinued 		Single-Ended Active AutoProbe 1 2.5 GHz 10:1 100 kΩ, 0.8pF 5 Vp-p
1158A
Discontinued 		Single-Ended Active AutoProbe 1 4 GHz 10:1 100 kΩ, 0.8pF 5 Vp-p

Passive Probes

The most widely used type of oscilloscope probe is the passive probe. Passive probes are also the most rugged and economical. There are no active components such as transistors or amplifiers in the probe, and therefore passive probes do not need to be powered.

Model Type Interface Bandwidth Attenuation Input Z Dynamic Range
54006A Passive
Resistive Divider		 SMA 6 GHz 10:1 or 20:1 500Ω 20 Vpk