ISO103B Datasheet

Special Purpose Amplifiers


The ISO103B isolation amplifier provides both signal and power across an isolation barrier. The ceramic non-hermetic hybrid package with side-brazed pins contains a transformer-coupled DC/DC converter and a capacitor-coupled signal channel. Extra power is available on the isolated input side for external input conditioning circuitry. The converter is protected from shorts to ground with an internal current limit, and the soft-start feature limits the initial currents from the power source. Multiple-channel synchronization can be accomplished by applying a TTL clock signal to paralleled Sync pins. The Enable control is used to turn off transformer drive while keeping the signal channel demodulator active. This feature provides a convenient way to reduce quiescent current for low power applications. The wide barrier pin spacing and internal insulation allow for the generous 1500Vrms continuous rating. Reliability is assured by 100% barrier breakdown testing that conforms to UL1244 test methods. Low barrier capacitance minimizes AC leakage currents. These specifications and built-in features make the ISO103B easy to use, as well as providing for compact PC board layouts. ISO103B Features • SIGNAL AND POWER IN ONE DOUBLE-WIDE (0.6") SIDE-BRAZED PACKAGE• 5600Vpk TEST VOLTAGE• 1500Vrms CONTINUOUS AC BARRIER RATING• WIDE INPUT SIGNAL RANGE: –10V to +10V• WIDE BANDWIDTH: 20kHz Small Signal, 20kHz Full Power• BUILT-IN ISOLATED POWER: ±10V to ±18V Input, ±50mA Output• MULTICHANNEL SYNCHRONIZATION CAPABILITY (TTL)• BOARD AREA ONLY 0.72in.2 (4.6cm2) ISO103B Applications • MULTICHANNEL ISOLATED DATA ACQUISITION• ISOLATED 4-20mA LOOP RECEIVER AND POWER• POWER SUPPLY AND MOTOR CONTROL• GROUND LOOP ELIMINATION


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Manufacturer information


ON Semiconductor - ON Semiconductor (Nasdaq: ON) is driving energy efficient innovations, empowering customers to reduce global energy use. The company offers a comprehensive portfolio of energy efficient power and signal management, logic, discrete and custom solutions to help design engineers solve their unique design challenges in automotive, communications, computing, consumer, industrial, LED lighting, medical, military/aerospace and power supply applications. ON Semiconductor operates a responsive, reliable, world-class supply chain and quality program, and a network of manufacturing facilities, sales offices and design centers in key markets throughout North America, Europe, and the Asia Pacific regions.

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