10 Mbps half-duplex RS-485 transceiver in a 3x3 LFCSP
The ADM4853ACPZ-REEL7 from Analog Devices is a single-channel, half-duplex RS-485/RS-422 transceiver that handles 10 Mbps signaling on a 5V supply rail. It integrates one driver and one receiver in a compact 8-LFCSP (3x3) package, making it a fit for space-constrained industrial interfaces where you need the bus speed but don't have room for a larger SOIC footprint. The 20 mV of receiver hysteresis cleans up noisy differential lines common in factory-floor runs.
What the 10 Mbps data rate means for your bus
At 10 Mbps, this part supports Profibus DP, DMX512, and other high-speed serial protocols that run over RS-485 physical layers. The half-duplex architecture means you manage direction control via the driver enable pin — typical for multi-drop polled networks. If your application only needs 2.5 Mbps, the ADM4852ACPZ-REEL7 is a lower-speed sibling in the same package and pinout, but the 10 Mbps part gives you headroom for future throughput increases without a board spin.
Package and layout: 8-LFCSP (3x3) with exposed pad
The 8-LFCSP (3x3) measures 3 mm x 3 mm with an exposed thermal pad underneath. That pad needs a via stitch to the ground plane to carry heat away — without it, junction temperature climbs faster than the SOIC-8 equivalent. The part is surface-mount only, so hand-prototyping requires a hot-air station or reflow. The Tape & Reel (TR) and Cut Tape (CT) options are available for different volume needs.
Lifecycle and compliance
It is ROHS3 compliant, so it passes the current EU material restrictions without an exemption. For new designs, this is a clean choice with no looming obsolescence risk.
Sourcing this part
This part is sourced through independent distribution and quoted to order against an RFQ. If you are dual-sourcing, the ADM4853ARZ-REEL7 is the SOIC-8 variant with identical electrical specs; the ADM4853ARZ is the tube-packed version of that same die. Both are functional drop-ins if your board can accommodate the larger footprint.