Si8900/1/2 ISOLATED MONITORING ADC Features ADC Temperature range: 40 to +85 C 3 input channels 10-bit resolution >60-year life at rated working 2.5 s conversion time voltage Isolated serial I/O port CSA component notice 5A UART (Si8900) approval 2 I C/SMbus (Si8901) IEC 60950, 62368, 60601 2 MHz SPI port (Si8902) VDE 0884-10 Transient immunity: UL1577 recognized Ordering Information: 45 kV/s (typ) Up to 5 kVrms for 1 minute See page 27. Applications Pin Assignments Isolated data acquisition Isolated temp/humidity sensing AC mains monitor Switch mode power systems VDDA VDDB Solar inverters Telemetry VREF NC Description AIN0 NC AIN1 Rx Si8900 The Si8900/1/2 series of isolated monitoring ADCs are useful as linear AIN2 Tx signal galvanic isolators, level shifters, and/or ground loop eliminators in NC NC many applications including power-delivery systems and solar inverters. RST VDDB These devices integrate a 10-bit SAR ADC subsystem, supervisory state GNDA GNDB 2 machine and isolated UART (Si8900), I C/SMbus port (Si8901), or SPI Port (Si8902) in a single package. Based on proprietary CMOS isolation VDDA VDDB technology, ordering options include a choice of 2.5 or 5 kV isolation VREF NC ratings. All products are safety certified by UL, CSA, and VDE. The AIN0 NC Si8900/1/2 devices offer a typical common-mode transient immunity AIN1 SCL performance of 45 kV/s for robust performance in noisy and high-voltage Si8901 AIN2 SDA environments. Devices in this family are available in 16-pin SOIC wide- RST NC body packages. RSDA VDDB Safety Approval GNDA GNDB UL 1577 recognized VDE certification conformity VDDA VDDB Up to 5 kVrms for 1 minute VDE 0884-10 RST NC CSA component notice 5A NC SDO approval VREF SCLK Si8902 IEC 60950, 62368, 60601 AIN0 SDI AIN1 EN AIN2 VDDB GNDA GNDB Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 1.2 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice August 3, 2021 Si8900/1/2 TABLE OF CONTENTS Section Page 1. Electrical Specifications .3 2. Regulatory Information 8 3. Functional Description 9 4. ADC Data Transmission Modes 11 4.1. Demand Mode 11 4.2. Burst Mode 12 4.3. Multiple Channel Burst Mode 14 4.4. UART (Si8900) .15 2 4.5. I C/SMBus (Si8901) .16 4.6. SPI Port (Si8902) .18 4.7. Master Controller Firmware 19 5. Si8900/1/2 Configuration Registers .20 6. Applications 22 6.1. Isolated Outputs 22 6.2. Device Reset .23 6.3. Application Example .24 7. Device Pin Assignments 25 8. Ordering Guide 27 9. Package Outline: 16-Pin Wide Body SOIC 28 10. Land Pattern: 16-Pin Wide-Body SOIC 30 11. Top Marking: 16-Pin Wide Body SOIC 31 11.1. Si8900/1/2 Top Marking .31 11.2. Top Marking Explanation 31 Document Change List .32 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 Rev. 1.2 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice August 3, 2021