Slash47
100+ Head-Fier
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- May 21, 2009
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You can't use not unity gain stable opamps on the HD2, the gain is too low. LT1028, AD797, OPA(2)228, OPA637 etc all don't work or oscillate. The only one's that're stable and I don't know if they're unity gain are AD8022 and AD8397.
It's a voltage out DAC chip (AK4396) so the opamps have a gain of just 1 to supply current and make it single ended. The layout isn't designed to make a gain of 1 good enough for something like the LT1028 and it's never gonna work for uncompensated BB's
It's a voltage out DAC chip (AK4396) so the opamps have a gain of just 1 to supply current and make it single ended. The layout isn't designed to make a gain of 1 good enough for something like the LT1028 and it's never gonna work for uncompensated BB's