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Re: Group Build National Semiconductor amp [message #59398 is a reply to message #59397] Wed, 17 June 2009 20:23 Go to previous messageGo to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18783
Registered: January 2001
Illuminati (33rd Degree)
We may be able to take advantage of pooling our purchase, even if there's not many others interested (even if only we two). I am interested in the OPA404, OPA627 and the LM3875 and/or LM3886 chips. I am going to buy at least a dozen of each of the Burr Brown op-amps, so you you want some of those, you can get a quantity discount no matter what. On the others - the LM3875 and 3886 - if we each bought 13, we would qualify for a price break. If others decided to join in before we actually place the order, maybe we could get an even better price. Here are the quantity price break points for those four parts at Digi-Key:

Part           qty          unit cost
=====================================
OPA404KP-ND      1           12.58
                25           11.3252
               100           10.0415
               250            9.62624

OPA627AU-ND      1           19.88
                25           18.55
               100           17.225
               250           16.89376

LM3875TF-ND      1            6.36
                25            5.03
               100            4.0299
               250            3.84812

LM3886TF-ND      1            7.14
                25            5.644
               100            4.522
               250            4.318
======================================
 
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