3656HG

® 3656 Transformer Coupled ISOLATION AMPLIFIER FEATURES q INTERNAL ISOLATED POWER q 8000V ISOLATION TEST VOLTAGE q 0.5µA MAX LEAKAGE AT 120V, 60Hz q 3-PORT ISOLATION q IMR: 125dB REJECTION AT 60Hz q 1" x 1" x 0.25" CERAMIC PACKAGE APPLICATIONS q MEDICAL Patient Monitoring and Diagnostic Instrumentation q INDUSTRIAL Ground Loop Elimination and Off-ground Signal Measurement q NUCLEAR Input/Output/Power Isolation DESCRIPTION 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 accomplished 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 configurations to match the requirements of many different types of isolation applications. Input Demodulator Pulse Generator + – Modulator Output Demodulator Input ISO Power Rectifiers and Filters Rectifiers and Filters Output ISO Power This product is covered by the following United States patents: 4,066,974; 4,103,267; 4,082,908. Other patents pending may also apply upon the allowance and issuance of...