DATASHEET SEARCH SITE | WWW.ALLDATASHEET.COM
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 10
Technical content
analog isolation amplifier (ISOamp) that most often captures the socket. immunity (CMTI). Optocoupler-based ISOamp versions also often suffer from poor linearity and even worse CMTI. Si86xx family of CMOS digital isolators. Figure 1. ISOamp Block Diagram
- Silicon Labs’ ISOlinear Reference Design Overview
or low-delay comparators are used, and so on. Figure 2. ISOlinear Reference Design Schematic and Operation
Table 1. ISOlinear vs. Analog Isolation Amplifiers
filter circuit by a separate Si86xx digital isolator, again to ensure no leakage current paths into the ECG inputs. Figure 6. ECG (Safety Isolation) Application
Figure 8. Ground Loop Elimination Circuit
Rev. 0.2 9 4. Summary Many analog systems require isolation to provide safety, le vel shifting or to mitigate ground noise. ISOamps are a common but expensive solution that lack flexibility and force the designer to compromise and/or add supplemental circuitry to a design. Silicon Labs' ISOlinear reference design (Si 86IsoLin-EVB) offers a lower-cost, more flexible linear isolation solution. This design is enabled by the Silicon Labs Si86xx industry-leading digital isolator and requires only four operational amplifiers and some passive components in addition to the isolator. The ISOlinear reference design benefits the user with a robust, competitive solution and the opportunity to create an optimum solution for the application at hand at a fraction of the price of an ISOamp. 4.1. Related Documents AN559: “Isolating Analog Signals Using the Si86xx CMOS Isolator Family”, Silicon Labs, 2011 ISOlinear Users Guide, Silicon Labs, 2011 AN598: “High-Speed Level Shifting Using Si8xxx Isolators”
Silicon Laboratories intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using or intending to use the Silicon Laboratories products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific device, and "Typical" parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. Silicon Laboratories reserves the right to make changes without further notice and limitation to product information, specifications, and descriptions herein, and does not give warranties as to the accuracy or completeness of the included information. Silicon Laboratories shall have no liability for the consequences of use of the information supplied herein. This document does not imply or express copyright licenses granted hereunder to design or fabricate any integrated circuits. The products must not be used within any Life Support System without the specific written consent of Silicon Laboratories. A "Life Support System" is any product or system intended to support or sustain life and/or health, which, if it fails, can be reasonably expected to result in significant personal injury or death. Silicon Laboratories products are generally not intended for military applications. Silicon Laboratories products shall under no circumstances be used in weapons of mass destruction including (but not limited to) nuclear, biological or chemical weapons, or missiles capable of delivering such weapons. Trademark Information Silicon Laboratories Inc., Silicon Laboratories, Silicon Labs, SiLabs and the Silicon Labs logo, CMEMS®, EFM, EFM32, EFR, Energy Micro, Energy Micro logo and combinations thereof, "the world’s most energy friendly microcontrollers", Ember®, EZLink®, EZMac®, EZRadio®, EZRadioPRO®, DSPLL®, ISOmodem ®, Precision32®, ProSLIC®, SiPHY®, USBXpress® and others are trademarks or registered trademarks of Silicon Laboratories Inc. ARM, CORTEX, Cortex-M3 and THUMB are trademarks or registered trademarks of ARM Holdings. Keil is a registered trademark of ARM Limited. All other products or brand names mentioned herein are trademarks of their respective holders. http://www.silabs.com Silicon Laboratories Inc.
400 West Cesar Chavez
Austin, TX 78701 USA Smart. Connected. Energy-Friendly Products www.silabs.com/products Quality www.silabs.com/quality Support and Community community.silabs.com