amazing gan fet

Just looking at the photos it isn't obvious how to breadboard such a package. Do they require a special socket?

Thanks for writing,

bob prohaska

Yeah, $1.64 in hundreds, pretty good for what you get. Analog switch FOM C_dg*R_on is about 1 ps, very impressive.

I want its little brother, with that sort of speed and a g_m of 200 mS. Assuming it’s quiet, of course—apart from extrinsic effects it should be about sqrt(8/3 * kT/g_m) = 0.22 nV in 1 Hz.

Cheers

Phil Hobbs

Cheers

Phil Hobbs

What I want is something

I think I can Dremel a hunk of FR4 enough to start testing one, but it will take a real proto PCB, with vias, to do it right. I have a summer intern starting on Monday and it would be a good project for him.

One could solder small wires to it too, for basic DC tests.

I'm thinking about making a high-voltage pulse generator with this part, with some sort of transmission-line transformer for polarity control and isolation and maybe step-up.

As always, gate drive is the interesting part, and the low gate charge sure helps.

If we do a proto PC board, we'll include some shear-off adapters. Everybody who makes parts like this should offer adapters. Maybe somebody sells something.

The smaller EPC parts are good, but lower volts and amps.

If I park the drain at +700 and drive the gate from 0 to +5 with a BUF602, I estimate a fall time of 1 ns.

Pretty good slew rate.

People are making such fun toys these days.

We spent yesterday at the MTTS microwave show downtown. All those people are still stuck in the graph paper/slide rule/s-parameter/VNA/load-pull world. I talked to a bunch of them about using their parts in time domain, with Spice models, and got vacant stares. Their world is all sine waves and dBm's.

I met one cool guy from a brit company, LA Techniques Ltd. They make VNAs and he grabbed my proto RF switch board and VNA'd it. And, amazingly, did a bunch of digital data eye diagrams. From the VNA data.

Jeroen Belleman

ps means pounds sterling I think.

Not anywhere I've lived. There is a special character for the job - £ - comparable with the $ symbol. Anyway, sensible people type nsec and psec.

gbp is the currency designation aka £ which is shift 3 on a UK keyboard. $ is shift 4.

Shift 3 is # here, pronounced "pound sign."

A pound is of course a unit of weight. Or force. Or maybe mass.

I thought it was "number" in the States. As in Apartment #251 I've heard it called pound too, but no-one in the States has seen a £

it would probably take two cups of coffee to design and order from JLCPCB, something like $50 for 100 with a stencil delivered in a week

I think some 1980s video game used "£" to represent its in-game currency which was called "Ludder" so I've thought of UK currency as being called "Ludder" ever since