what about the NJM2068 ? does it have the same power requirement as the LM833 ? Is it a perfect swap ?
Check the data sheets!
Must be available on line.
As it is, a rarely failing part, and swapping may need circuit modification.
I would leave it alone unless absolutely needed.
Must be available on line.
As it is, a rarely failing part, and swapping may need circuit modification.
I would leave it alone unless absolutely needed.
It appears that this is somehow related to the SFAB(Sherman TX) and DFAB(Dallas TX) facilities and TI has backed off on the EOL.
"Texas Instruments Incorporated (TI) is updating the status of select SFAB and DFAB devices
which were previously planned for end-of-life (EOL). To best support production needs for the
duration of customers’ existing project lifecycles, applicable devices will remain orderable, and
will no longer have a last-time buy date. You may continue to purchase these devices through
your usual ordering process. The original PDN number(s) and corresponding part number(s) are
listed starting on page 2 of this notice."
The NE5534ADR, NE5534AP, NE5534DR, NE5534P all seem to be safe for now but it isn't clear to me that any versions that I use were EOL.
I do use OPA1678 more often now and they are pretty impressive so far. I plan to roll them out in production product soon.
"Texas Instruments Incorporated (TI) is updating the status of select SFAB and DFAB devices
which were previously planned for end-of-life (EOL). To best support production needs for the
duration of customers’ existing project lifecycles, applicable devices will remain orderable, and
will no longer have a last-time buy date. You may continue to purchase these devices through
your usual ordering process. The original PDN number(s) and corresponding part number(s) are
listed starting on page 2 of this notice."
The NE5534ADR, NE5534AP, NE5534DR, NE5534P all seem to be safe for now but it isn't clear to me that any versions that I use were EOL.
I do use OPA1678 more often now and they are pretty impressive so far. I plan to roll them out in production product soon.
I am wondering if the bean-counters were originally hoping people would move from 30 cent NE553x's to $2+ chips, but the engineers managed to stop them cancelling the all time most used audio opamps? Well its a theory...
The economics of running a fab may have dictated the EOL. You can never know the detail, but they may have now decided to build ahead to buy time so they can transfer the process to another fab given the pushback they’ve had. You don want to run a fab at anything less than 90% loading 24/7 and a few big fabs is a better operating model than having smaller ones dotted around. It’s an extremely tough business.
Long live the NE5534!
Long live the NE5534!
In fact the SA5534A is the same chip as the NE5534A, but tested/selected. Due to process improvements in 50 years, every modern NE5534A is a SA5534A, but a SA5534A can be sold for slightly more money.
