NOVOSENSE Rolls Out a Three-Channel Digital Isolator Built for RS485

NOVOSENSE Microelectronics has introduced the SP301H/L, a new family of three-channel digital isolators aimed squarely at RS485 isolation duties. Built on the company's third-generation capacitive isolation process, the chip brings meaningful gains in speed, power draw, EMI resilience, and footprint compared to earlier parts.
Most isolated RS485 designs today still lean on three separate optocouplers plus a scattering of resistors and capacitors to make everything work. That approach has real downsides,  a bloated BOM, more procurement headaches, bandwidth ceilings, and optocouplers that degrade in performance as they age. As industrial and metering systems push toward faster data rates and smaller boards, that old formula is starting to show its age. This is where digital isolation is increasingly stepping in as the go-to approach for next-generation RS485 designs.
The core pitch behind the SP301H/L is consolidation. By folding all three isolation channels into a single package, NOVOSENSE eliminates the need for discrete optocouplers and their support circuitry, cutting down on parts to source, stock, and route on the board. This translates directly into board space too  the part ships in a compact SSOW10 wide-body package with fine-pitch leads, and NOVOSENSE claims over 60% space savings versus a traditional optocoupler-based layout.