MC6566 Equivalent WITHOUT Hysteresis

AZV331 ?

Or if you want a real op-amp with totem pole output then the companion AZV831.

piglet

I think this FAN156 is a closer match:

Nevermind, it's got internal hysteresis too! I don't see it on the diagram though...

Umm, why?

A special application slew rate control. ...Jim Thompson

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I'm looking for work... see my website.

Thinking outside the box... producing elegant solutions.

MCP6566 is ~50ns part, 331's are in the 600ns and higher range. ...Jim Thompson

Making a slew-rate limiter? That's always fun.

Jesus, Jim, you're an IC designer. Isn't there something like OshPark for ICs yet?

I could whip up a chip design in minutes... it'd just cost me probably $10K minimum just to run it thru MOSIS :-(

This is for a massive run of eight systems ;-) ...Jim Thompson

The KA139 ? No mention of Hysteresis. Open Collector, dual.

Cheers

"Jim Thompson" wrote in message news: snipped-for-privacy@4ax.com...

Wouldn't it be great if there were an IC proto service, even if it were super s***ty (10um+ feature size?), that was as cheap as PCBs are*?

Tim

The original comparator has like 3mV of hysteresis at 1.6 volts. Trying to make a silk purse out of a sow's ear anyway. Just use the "op amp" in inverting feedback configuration it'll probably work fine-ish.

Can't find it. Link? Isn't that a variant of the oldie 139/239/339? ...Jim Thompson

Don't we wish! ;-) ...Jim Thompson

But its a 5v part :(

Cheers

Your link is much better than the one I found. It claimed the response time was 1.5us, yours says 80ns for 2mv overdrive. That's much better.

Your link also shows the supply goes from 5v to +/- 15v. The transfer function in Fig. 3 on page 5 shows the response around 0mv. This is quite interesting. Many comparators oscillate under these conditions. The KA319 might be exactly what JT is looking for. Nice catch.

Strange numbering! Schematic somewhat resembles the LM311. ...Jim Thompson

My left middle finger is getting slower as I age ;)

Cheers

Fairchild made some nice IC's. If you looking for 15v opamps in a SOT package Fairchild is the only one that has a few, as far as I can see.

Cheers