Silicon Pr0n

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{{tag>collection_nico vendor_ns type_unknown year_unknown foundry_unknown}}

"This weeks images are of the LMC6442 dual op-amp from National Semiconductor. The devices organization makes it somewhat easy to read with the top and bottom halves dedicated to the two op-amps. Looking at the bottom half, the two inputs are at the bottom center and the op-amp output pin is in the bottom right corner. The circular structures that look like BJTs near the in/out pins are not for driving, but for ESD protection. It looks like the main differential transistor pairs are above the input pins around the center of the chip. The left portion of the device looks to be biasing/current-source circuitry while the right side two-three gain stages. Two metal capacitors can also be seen per op-amp which are likely used for frequency compensation."

Source: http://microblog.routed.net/2008/05/23/ic-friday-national-semiconductors-lmc6442/

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====== Die ======

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