Circuit can be found here; http://www.thatcorp.com/datashts/dn129.pdf
What are R11 and R12 doing? They're not mentioned in the design note so I assume it's obvious but I can't figure it out
The release time is slow, a number of seconds slow, and I can't see why. Removing C4 and C2 make no difference. Adding a low value drain resistor to U2D +IN helps in speeding it up but I'm not sure how it may negatively effect the circuit, if at all?
What are R11 and R12 doing? They're not mentioned in the design note so I assume it's obvious but I can't figure it out
The release time is slow, a number of seconds slow, and I can't see why. Removing C4 and C2 make no difference. Adding a low value drain resistor to U2D +IN helps in speeding it up but I'm not sure how it may negatively effect the circuit, if at all?