4-20mA Precision Source Ideas

On purpose, to rile you up. Hopefully you'll blow a gasket and go away ;-)

Or I can "insult" the "brat" next... your choice.

Doesn't run in my family, but clearly runs in yours.

Note Larkin's bad sentence structure. I've almost got him to mental collapse ;-)

Sno-o-o-o-ort! ...Jim Thompson

;-) ...Jim Thompson

-- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at

Remember: Once you go over the hill, you pick up speed

Hi, thanks for the suggestion.

It looks like this is designed more for "floating" loops, rather than ones referenced to a zero volt common rail like I need. (I neglected to mention this in my OP...).

John

JT's not big on the topic lately, either. His main concern is repairing some doubtless-hideous cheap aluminum household doodad.

John

I don't think there is an industry standard, just opinions. I care about how my schematics look, how things line up and are spaced and such, how signals flow visually, and a 4-way tee sometimes looks better to me. Some people\\\\\\ hens go ballistic over this sort of thing, even if they can't understand the schematic itself.

Weird.

John

Oops, yes sorry my newsreader wasn't showing some of the other posts. John

In a complex schematic it's exactly the opposite. Splitting intersections take space, break up straight lines, and take more space. They're harder to read. If you do one-component-per-letter-sized-page style, where off-page connections make up 80% of the connections it doesn't matter so much.

Not to mention that intersection dots are a different color.

DimBulb, I've never even hinted that you are in any way standard.

I'm the same way. I use 4-way T's often because they don't break up the flow and whitespace. Requiring only 3-point intersections makes a mess of the schematic. Given today's printers and displays, disallowing 4-way intersections is just stupid.

When all they can do is cluck, I guess they have to lay eggs. Interesting that JF, JT, and DimBulb all agree (that clucking is more important than electronics).

A schematic should not be complex to start with. If a schematic is complex nobody will be able to modify the schematic or service (repair) the end product.

Sorry, I paid to do work. Sometimes it is complex.

Says the retard that does not know the design rules for basic schematic layout.

Your stubborn idiocy is the only skill you have a set of, boy.

Usually it can't be helped. A serious board these days will have a uP, an FPGA (300 to 500 pins each), all the support flash and dram and clock stuff, ADCs, DACs, Ethernet or a bus interface, all that, on a 6 or 8 layer board, with 5 to 10 different power rails. A 25 or 30 page schematic isn't unusual. We have one VME module that has 1100 parts. Another has 13 ARM processors and a heap of analog electronics. That's life these days.

Gone are the days when the schematic of a TV set could be pasted inside the rear cover.

John

They're getting downright chummy lately. They seem to have discovered that they have a lot in common.

John