What the 115 kbps data rate means for your bus
The ADM4850ARZ: Its 115 kbps data rate suits it for industrial fieldbus links, building automation, and instrumentation where the cable run is long and the update rate moderate — think a few dozen sensor nodes polling at tens of milliseconds per cycle, not a motion-control axis streaming position at megahertz rates. The 20 mV receiver hysteresis cleans up slow edges on a heavily loaded bus, preventing the output from chattering when the differential signal lingers near the threshold. That matters when the cable is 1000 m long and the termination resistor is pulling the line to a marginal level.
8-SOIC narrow-body (0.154-inch wide, 3.90 mm), same footprint as a standard SOIC-8 op-amp or logic gate. Surface-mount only — no through-hole option. The supplier device package is 8-SOIC, so the land pattern matches any generic SOIC-8 layout.