Life expectancy (EOL) for the AD7870, and possible candidates for redesign?

Question

Hello, 
 I have been tasked to update a design which uses the AD7870 A/D converter. This part is very expensive, and I fear that it will be going EOL in the near future. 
 What is this possibility? 
 Is there another bipolar input device which can be considered with similar characteristics for a possible redesign. 
 
 Thanks,

@skowalik · Accepted Answer

Chriscraft, 
 I unfortunately don't have any insight as to how long before EOL. This is a decision made by our marketing team on a somewhat periodic basis related to historical and forecasted sales trends, manufacturing cost, and supply chain factors including the availability of the fabrication process, package, test equipment, etc.. However, given the cost of the device I would say that unless you really need a feature you can't get out of one of our other catalog parts you should consider a redesign for both cost and vintage reasons. 
 I'm going to assume for the moment you don't need the military grade or ceramic packaging but let us know if that is not the case. I'll warn you it will limit our options. 
 Having looked at our catalog I would say from a true bi-polar perspective you might want to consider one of our uModule (micro-module solutions) like 
 ADAQ7980 - Single Ended, Bi-Polar, 16-bit 1MSPS DAQ OR 
 ADAQ4001 - Differential, Bi-Polar, 16-Bit 2MSPS DAQ 
 Now you'll need bipolar supplies for these solutions so if you want single supply operation you might consider one of the following multi-channel devices and just use only one channel. 
 AD7606-6 
 AD7606-C 
 We also have mult-channel, true-bipolar devices like 
 AD7366/7 
 Hope that helps. 
 
 Sean)

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Life expectancy (EOL) for the AD7870, and possible candidates for redesign?