Si8920 Data Sheet Isolated Amplifier for Current Shunt Measurement KEY FEATURES The Si8920 is a galvanically isolated analog amplifier. The low-voltage differential input is ideal for measuring voltage across a current shunt resistor or for any place where Low voltage differential input a sensor must be isolated from the control system. The output is a differential analog 100 mV and 200 mV options signal amplified by either 8.1x or 16.2x. Low signal delay: 0.75 s Input offset: 0.2 mV The very low signal delay of the Si8920 allows control systems to respond quickly Gain error: <0.5% to fault conditions or changes in load. Low offset and gain drift ensure that accuracy Excellent drift specifications is maintained over the entire operating temperature range. Exceptionally high common- 1 V/C offset drift mode transient immunity means that the Si8920 delivers accurate measurements even in the presence of high-power switching as is found in motor drive systems and inver- 10 ppm/C gain drift ters. Nonlinearity: 0.025% full-scale Low noise: 0.10 mVrms over 100 kHz The Si8920 isolated amplifier utilizes Skyworks proprietary isolation technology. It sup- bandwidth ports up to 5.0 kVrms withstand voltage per UL1577. This technology enables higher High common-mode transient immunity: 75 performance, reduced variation with temperature and age, tighter part-to-part matching, kV/s and longer lifetimes compared to other isolation technologies. Compact packages Automotive Grade is available for certain part numbers. These products are built using 16-pin wide body SOIC automotive-specific flows at all steps in the manufacturing process to ensure the robust- 8-pin surface mount DIP ness and low defectivity required for automotive applications. 40 to 125 C Automotive Applications AEC-Q100 Industrial Applications Hybrid and EV traction inverters Automotive-grade OPNs available Industrial and renewable energy inver- AIAG compliant PPAP documentation ters Onboard chargers support AC, Brushless, and DC motor controls Charging pedestals IMDS and CAMDS listing support and drives Variable speed motor control in consum- er white goods Isolated switch mode and UPS power supplies Safety Regulatory Approvals UL 1577 recognized Up to 5000 Vrms for 1 minute CSA component notice 5A approval IEC 60950-1 (reinforced insulation) VDE certification conformity VDE0884 Part 10 (basic/reinforced insulation) CQC certification approval GB4943.1 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 1 Rev. 1.04 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice December 4, 2021 1Si8920 Data Sheet Ordering Guide 1. Ordering Guide Table 1.1. Ordering Guide for Valid OPNs New Ordering Part Number Ordering Options (OPN) Specified Input Range Isolation Rating Package Type Si8920AC-IP 100 mV 3.75 kVrms Gull-wing DIP-8 Si8920BC-IP 200 mV 3.75 kVrms Gull-wing DIP-8 Si8920AD-IS 100 mV 5.0 kVrms WB SOIC-16 Si8920BD-IS 200 mV 5.0 kVrms WB SOIC-16 Si8920AC-IS 100 mV 3.75 kVrms WB SOIC-16 Si8920BC-IS 200 mV 3.75 kVrms WB SOIC-16 Note: 1. All packages are RoHS-compliant. 2. Si and SI are used interchangeably. Automotive Grade OPNs Automotive-grade devices are built using automotive-specific flows at all steps in the manufacturing process to ensure robustness and low defectivity. These devices are supported with AIAG-compliant Production Part Approval Process (PPAP) documentation, and feature International Material Data System (IMDS) and China Automotive Material Data System (CAMDS) listing. Qualifications are compliant with AEC-Q100, and a zero-defect methodology is maintained throughout definition, design, evaluation, qualification, and mass production steps. 1, 2, 4, 5 Table 1.2. Ordering Guide for Automotive Grade OPNs New Ordering Part Number Ordering Options (OPN) Specified Input Range Isolation Rating Package Type Si8920AC-AP 100 mV 3.75 kVrms Gull-wing DIP-8 Si8920BC-AP 200 mV 3.75 kVrms Gull-wing DIP-8 Note: 1. All packages are RoHS-compliant. 2. Si and SI are used interchangeably. 3. An at the end of the part number denotes tape and reel packaging option. 4. Automotive-Grade devices (with an suffix) are identical in construction materials, topside marking, and electrical parameters to their Industrial-Grade (with a suffix) version counterparts. Automotive-Grade products are produced utilizing full automotive process flows and additional statistical process controls throughout the manufacturing flow. The Automotive-Grade part number is included on shipping labels. 5. Additional Ordering Part Numbers may be available in Automotive-Grade. Please contact your local Skyworks sales representa- tive for further information. 6. In Section 6.5 Top Marking: DIP8 and Section 6.6 Top Marking: 16-Pin Wide Body SOIC, the Manufacturing Code represented by either RTTTTT or TTTTTT contains as its first character a letter in the range N through Z to indicate Automotive-Grade. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 Rev. 1.04 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice December 4, 2021 2