ON Semiconductor NCID9211 Ceramic Digital Isolator
The ON Semiconductor NCID9211 is a galvanically isolated full duplex, bi-directional, high-speed dual-channel ceramic digital isolator with output enable. The digital isolator supports isolated communications thereby allowing digital signals to communicate between systems without conducting ground loops or hazardous voltages.
The NCID9211 utilizes ON Semiconductor patented galvanic off-chip capacitor isolation technology and optimized IC design to achieve high insulation and high noise immunity, characterized by high common mode rejection and power supply rejection specifications. The two-channel digital isolator’s thick ceramic substrate yields capacitors with ~25 times the thickness of thin film on-chip capacitors and coreless transformers. The result is a combination of the electrical performance benefits that digital isolators offer with the safety reliability of a >0.5 mm insulator barrier. This is similar to what has historically been offered by optocouplers.