DAC Output [OPA1611 or OPA132]


2013-12-18 8:52 pm
I'm doing a DAC output, with traditional buffer + differential, with 6 units of op amp for 2 channels.
I have only two units of the OPA132, and all I could already test what pleased me most, especially the treble.
But I see many comments for the OPA1611, but I could not test it, and your datasheet is really "charming", despite not having offset adjustment.
I'm really in doubt keep what is already great for me or risk the OPA1611. :scratch1:
Some help?
Here's an example of what I mean, just use a darlington emitter follower biassed by a current source. It works as a buffer, but buffers can also be used to build filters as in this example.


  • buff-filt.jpg
    21.2 KB · Views: 174