DESCRIPTION

· The Si8900/1/2 series are isolated monitoring ADCs designed for linear signal galvanic isolation, level shifting, and ground loop elimination in various applications including power-delivery systems and solar inverters.

· These devices integrate a 10-bit SAR ADC subsystem, a supervisory state machine, and an isolated UART (Si8900), I2C/SMbus port (Si8901), or SPI Port (Si8902) in a single package.

· Utilizing proprietary CMOS isolation technology, they offer 2.5 or 5 kV isolation ratings and are safety certified by UL, CSA, and VDE.

· They provide robust performance in noisy and high-voltage environments with a typical common-mode transient immunity of 45 kV/µs.

· 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 (typical).

· Operates in a temperature range from –40 to +85 °C.

· Over 60-year life at rated working voltage.

· Safety certifications include CSA component notice 5A, IEC 60950, 62368, 60601, VDE 0884-10, and UL1577 recognition up to 5 kVrms for 1 minute.

APPLICATIONS

· Isolated data acquisition and AC mains monitoring.

· Solar inverters and isolated temperature/humidity sensing.

· Switch mode power systems and telemetry.

· Safety certifications include UL 1577 recognition up to 5 kVrms for 1 minute, CSA component notice 5A, IEC 60950, 62368, 60601, and VDE 0884-10 conformity.