Intersil ICL8048 log amp replacement?

Intersil say there is no recommended replacement from them for the ICL8048 monolithic logarithmic amplifier. Does anyone know of something similar or better, in production, from anyone else?

Look at ti.com for log amps: log 101, log 104, log 112

HTH

Jorgen

Jorgen Lund-Nielsen wrote in news:gi55qg$5k1lb$ snipped-for-privacy@claire.desy.de:

Nice. The leering leaf strikes again. (Look at the TI logo, this will entirely explain itself..) Thanks. :)

I'm still open to more suggestions, even though these fit, I'm interested to see that analog is evidently not as dead as I've sometimes been told. Knowing which firms dedicate to IC's like these will help me find other stuff later.

innews:gi55qg$5k1lb$ snipped-for-privacy@claire.desy.de:

There are lots of the intersil parts (ICL8048] in chip brokers inventories...actually some of them have date codes in the 2004 era, and inventories are in the thousands for this part number.

kw

kilowatt wrote in news:ad710df9-3c2b-4824-b742- snipped-for-privacy@i24g2000prf.googlegroups.com:

Not interested. Why do you think I said 'in production'?

How many do you need?

P.

P. wrote in news: snipped-for-privacy@4ax.com:

None. My question was answered by Jorgen, who pointed me to Texas Instruments' LOG101 (I chose LOG112 for my needs). I'm not interested in attempts to sell me a part I already know is discontinued. Strange, you suggesting that while posting warnings of counterfeits. Most people anxious to avoid those would be equally reluctant to respond to an offer like yours here.

??????????????

I just asked how many you need? I never offered any parts, and was not planning to do so. Only to show you where to get them.

So when people try to be helpful you insinuate they sell fake parts??

Nice.

P.

P. wrote in news: snipped-for-privacy@4ax.com:

Not insinuating anything. That's what I thought it looked like. I made it clear I wanted in-production replacements, but you chose not to see that, so it seemed reasonable to consider the evasion representative of a possible desire to hook me up with a parts broker. If that's what I wanted, I'd have asked.

Brokers never sell small quantities, so they are not possible. And as I wrote elsewhere some USA based companies are not reliable as they source from China, and yes, they are brokers. I am against this, they destroy the whole market with their garbage. But not all brokers are bad, there are good ones that suffer from the bad ones too.

I assume you only need one or so. There are still several reliable small electronics shops over here in Europe that have older parts in stock. And I know from several what they have, so where to get, and I sometimes help them. For free.

As you want a part for a new design, you should go for a new part that is in production. And check if there are plans to make it obsolete. Check how many are in stock at distributors, that will tell you how well the part sells. Many in stock is a good sign.

P.

P. wrote in news: snipped-for-privacy@4ax.com:

I will use one or two, but if the design works (I think it will, this part is a simple signal scale conversion, the rest is done), then it might be made in more numbers. Either by me, or by someone who I can get interested in doing it in tens or a hundred. I know what I need, it's widely avaliable, I checked that. Just got to buy the things when I have the money.. I doubt it's due for obsolescense, and I think TI seem to be commited to the basic circuit even if they change the number of uncommited op-amps, voltage references, or whatever. What Jorgen showed me convinced me that TI aren't dropping them any time soon. They'd have discontinued them right after buying Burr Brown if they wanted to do that, I think. Singles are available in tens at several places, in hundreds if reels are bought. I also think the future of those log amps is more assured now than it once was. (Especially given that they can reduce demands on digital input bit depth in many systems, like dynamic range of 20 bits into a 12 bit ADC) Compared with the parts count and accuracy problems of discrete parts to make one, this IC type's endurance is understandable. The reason I am so wary of indirect sources is simple: they cost enough to be vulnerable to counterfeiting. On the other hand, their function is kind of hard to fake well. :)