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The 3656 was the first amplifier to provide a total isolation function, both signal and power isolation, in integrated circuit form. This remarkable advancement in analog signal processing capability was accom-plished by use of a patented modulation technique and miniature hybrid transformer.
Versatility and performance are outstanding features of the 3656. It is capable of operating with three completely independent grounds (three-port isolation). In addition, the isolated power generated is available to power external circuitry at either the input or output. The uncommitted op amps at the input and the output allow a wide variety of closed-loop configura- tions to match the requirements of many different types of isolation applications.
3656 Maximum Ratings
Supply Without Damage ......................................................................16V Input Voltage Range Using Internal Supply ........................................±8V Input Voltage Range Using External Supply.................................... Supply Continuous Isolation Voltage(1) .....................................3500, (1000) VDC Storage Temperature...................................................65°C to +125°C Lead Temperature, (soldering, 10s).......................................... +300 °C
3656 Features
INTERNAL ISOLATED POWER 8000V ISOLATION TEST VOLTAGE 0.5A MAX LEAKAGE AT 120V, 60Hz 3-PORT ISOLATION IMR: 125dB REJECTION AT 60Hz 1" x 1" x 0.25" CERAMIC PACKAGE
3656 Typical Application
MEDICAL Patient Monitoring and Diagnostic Instrumentation INDUSTRIAL Ground Loop Elimination and Off-ground Signal Measurement NUCLEAR Input/Output/Power Isolation