DESCRIPTION

· The Si8900/1/2 series are isolated monitoring ADCs used as linear signal galvanic isolators, level shifters, and ground loop eliminators in power-delivery systems and solar inverters.
· They integrate a 10-bit SAR ADC subsystem, supervisory state machine, and isolated UART (Si8900), I2C/SMbus port (Si8901), or SPI Port (Si8902) in a single package.
· Based on proprietary CMOS isolation technology, they offer 2.5 or 5 kV isolation ratings and are safety certified by UL, CSA, and VDE.
· These devices provide a typical common-mode transient immunity of 45 kV/µs and are available in 16-pin SOIC wide-body packages.

FEATURES

· 3 input channels with 10-bit resolution and 2.5 µs conversion time.
· Isolated serial I/O ports: UART (Si8900), I2C/SMbus (Si8901), and 2 MHz SPI port (Si8902).
· Transient immunity: 45 kV/µs (typ).
· Temperature range: –40 to +85 °C.
· >60-year life at rated working voltage.
· Safety certifications: CSA component notice 5A, IEC 60950, 62368, 60601, VDE 0884-10, and UL1577 recognized up to 5 kVrms for 1 minute.

APPLICATIONS

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