DESCRIPTION

· The Si8900/1/2 series are isolated monitoring ADCs designed for linear signal galvanic isolation, level shifting, and ground loop elimination in applications like power-delivery systems and solar inverters. They integrate a 10-bit SAR ADC, supervisory state machine, and isolated UART (Si8900), I2C/SMbus (Si8901), or SPI port (Si8902) in a single package. These devices feature 2.5 or 5 kV isolation ratings and are safety certified by UL, CSA, and VDE.

FEATURES

· 10-bit SAR ADC with 3 input channels and 2.5 µs conversion time.· Isolated serial I/O ports: UART (Si8900), I2C/SMbus (Si8901), or 2 MHz SPI (Si8902).· Common-mode transient immunity: 45 kV/µs (typ).· Operating temperature range: –40 to +85 °C.· >60-year life at rated working voltage.· Safety certifications: CSA, IEC 60950, 62368, 60601, VDE 0884-10, and UL1577.

APPLICATIONS

· Isolated data acquisition.· AC mains monitoring.· Solar inverters.· Isolated temperature/humidity sensing.· Switch mode power systems.· Telemetry.