Probe comparison

From sigrok
Jump to: navigation, search
Probe collection.

Contents

Logic analyzer probes

There are many logic analyzer probes of varying quality and price on the market (see photo for a small subset).

Low-end probes

There are various simple and cheap logic analyzer probes available from various sources. Some logic analyzers are also shipped with this kind of probes out of the box.

They're generally not recommended, if you can avoid them. They're usually of low quality, break/bend/fail relatively quickly, and cannot be easily used to probe finer-pitch devices/pins. Probes 1 and 2 (see photos) also have the additional disadvantage that they're hardwired/soldered directly to a custom logic analyzer cable, which means they cannot be easily replaced, swapped, or removed and used for other purposes (which is possible with the other probes). See below for better alternatives.

Sometimes you can also replace the probes shipped with your device by a better-quality cable/probe set, e.g. in the case of the RockyLogic Ant8 probe cable (see photos).

Quality probes

The better-quality (and minimum recommended, in our opinion) probe type is the EZ-Hook. This type of probe is of sufficient quality, doesn't break too easily, and the grabber is small enough to probe most fine-pitch devices one usually encounters in day-to-day probing.

The Agilent probes (shipped with some Agilent oscilloscopes with integrated logic analyzer) seem to be exactly the same as the EZ-Hooks. They're probably merely rebranded for Agilent (just a guess).

The Tektronix probes are different, but of similarly good quality as the EZ-Hooks.

The ZEROPLUS probes seem to be custom-made by/for ZEROPLUS and are of similarly good quality, too (only one pin where you can attach, though; most other probe types usually have two).

Saleae used to deliver EZ-Hooks with the Logic; currently at least the Logic16 comes with a cheaper copy. The Link Instruments MSO-19 comes with the same probes (in different colors).

Pomona Grabber

The Pomona Grabber probes seem of similarly good quality (and also have only one pin where you can attach).

High-end probes

There are of course also various higher-end, special-purpose probes which are much more expensive. They allow for probing much smaller pitch devices, for example.

TPI NC1 series

The Test Products International (TPI) NC1 is a series of micro test clips.

Where to buy:

Vendor Device Comments Price
Digikey TPI NC1B Black €7.30
Digikey TPI NC1BLUE Blue €8.59
Digikey TPI NC1Y Yellow €8.59
Digikey TPI NC1GY Gray €8.59
Digikey TPI NC1R Red €8.59
Digikey TPI NC1G Green €8.59

ElectroPJP 6800 / Pomona 72902

Products:

Where to buy:

Vendor Device Comments Price
Reichelt Electro-PJP CLIP 6800 RT "Challenger-clip" One probe, red €6.55
Reichelt Electro-PJP MS 6800-6 Set of 6 probes, 3 holding rods, 6 cables €48.95
Reichelt Electro-PJP MS 6800-8 Set of 8 probes, 4 holding rods, 8 cables €63.85
Reichelt Electro-PJP MS 6800-12 Set of 12 probes, 6 holding rods, 12 cables €86.45
Digikey Pomona 72902-0 One probe, black €11.69
Digikey Pomona 72902-2 One probe, red €11.69
Digikey Pomona 72902 Kit €179.97

E-Z-Hook X2015

The E-Z-Hook X2015 micro double-hook.

Mechano Japan FP-2S

The Mechano Japan FP-2S micro test clips (microgrippers) are suitable for ICs with a pitch of 0.50mm—0.20mm. They're available from various vendors under different names.

Vendor Device Comments Price
ChipQuik ChipQuik Microgripper FP-2S-2 2 micro-grippers, 2 wires. $79.00
Digikey ChipQuik SMDFP-2S-2 2 micro-grippers, 2 wires. Datasheet. €80.56
Distrelec PMK FP-2S-2 2 micro-grippers, 2 wires. Datasheet. €90.28
Emulation Technology Emulation Technology MicroGripper FP-2S-2 2 micro-grippers, 2 wires. Datasheet. $74.72
PEWA PMK FP-2S-2 QFP IC-Clip 2 micro-grippers, 2 wires. Datasheet. €73.00
PMK PMK SMDFP-2S-2 2 micro-grippers, 2 wires €80.56

Mechano Japan FP-5 (FP-2B)

The Mechano Japan FP-5 (a.k.a FP-2B) micro test clips (microgrippers) are suitable for ICs with a pitch of 1.00mm—0.30mm. They're available from various vendors under different names.

Probe comparison

Logic analyzer adapters

Attaching "normal" logic analyzer probes directly to the system you want to analyze is not always the easiest method. For specific use-cases there are also special "sniffer" or "breakout" boards that can be used.

Micro SD sniffer

SD sniffer

USB sniffer

PCI sniffer

Nintendo Wii Nunchuk sniffer

Oscilloscope probes

Low-end probes

There are various cheap oscilloscope probes which are shipped with many PC/USB oscilloscopes and also some standalone bench scopes.

The two major manufacturers seem to be:

TODO: Photos