why wont my AD843 work inplace of my AD826 in my audio pre-amp? I thought both being 8pin and the AD843 recommended as great sounding that it would swap out for the AD826 i had in there; but the AD843 won't pass audio through it to the output of pre-amp.
Hello rtp,
The two chips are not pin-compatible. The AD826 is a dual (stereo) op-amp; the AD843 is a single.
To engineer a suitable upgrade replacement, match the original chip's supply voltage, pin-out, and other important features. For example, the ADA4275-2 may work well. Download its data sheet at
http://www.analog.com/media/en/technical-documentation/data-sheets/ADA4075-2.pdf
The first page of this data sheet lists other possible choices as shown below:
You could also do a parametric search, although I find these rather complicated to use.
Note that many of the newer, improved choices are only available in surface-mount packages, so you'll need to do some adaptation to insert them into an older design.
Best regards,
Bob
Hello rtp,
The two chips are not pin-compatible. The AD826 is a dual (stereo) op-amp; the AD843 is a single.
To engineer a suitable upgrade replacement, match the original chip's supply voltage, pin-out, and other important features. For example, the ADA4275-2 may work well. Download its data sheet at
http://www.analog.com/media/en/technical-documentation/data-sheets/ADA4075-2.pdf
The first page of this data sheet lists other possible choices as shown below:
You could also do a parametric search, although I find these rather complicated to use.
Note that many of the newer, improved choices are only available in surface-mount packages, so you'll need to do some adaptation to insert them into an older design.
Best regards,
Bob
