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 |