sn75176b vs max485 price for DMX
The 75176 is an old TI bipolar part that uses a lot more more power (especially quiescent power). It's perhaps more rugged than the MAX485 CMOS parts (ymmv) so if you have plenty of power it might be preferable. It also works a lot faster than the MAx485 (10 vs. 2.5 MBPS) but either is ok for DMX512. If you're running continuously into a terminated line (as you typically would with DMX) you may not notice the power difference that much.

The slew-rate limiting on the ADM4852ARZ might make it more tolerant to dubious terminations and would reduce EMI.