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La valve la plus simple est la diode. C’est un interrupteur qui conduit le courant dans un seul sens.

Operation from split power supplies is also possible so long as the difference between the two supplies is 3 volts to 32 volts. Application areas include transducer amplifier, DC gain blocks and all the conventional OP-AMP circuits which now can be easily implemented in single power supply systems.

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Input Current vs Temperature. Open Loop Frequency Response Figure 6. Common mode Rejection Ratio. Large Signal Frequency Response Figure Output Characteristics vs Current Sourcing. Output Characteristics vs Current Sinking Clurs Current Limiting vs Temperature. The 4N25, 4N26, 4N27 and 4N28 devices consist of a gallium arsenide infrared emitting diode optically coupled to a monolithic silicon phototransistor detector. VDE is a test option. Isolation surge voltage is an internal device dielectric breakdown rating.


For this test, Pins 1 and 2 are common, and Pins 4, 5 and 6 are common. Collector Current versus Figure 4. Output Current versus Ambient Temperature.

Dark Current versus Ambient Temperature Figure 6. Rise and Fall Times. N-channel, enhancement mode field-effect power transistor, intended for use in off-line switched mode power supplies, T.

Normalised continuous drain current.

Typical capacitances, Ciss, Coss, Crss. Typical turn-on gate-charge characteristics.

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Maximum permissible non-repetitive avalanche current IAS versus avalanche time t p ; unclamped inductive load. Maximum permissible repetitive avalanche current IAR versus avalanche time t p.

This product is supplied in anti-static packaging. The gate-source input must be protected against static discharge during transport or handling.

Version du 9 septembre Disponible sur le site http: Version du septembre Bendaas M ed Lokman. Rechercher sur le site: Rating Symbol Value Unit. Thermal Resistance Junction-Ambient Max. Common-Mode Input Voltage Range. Large Signal Voltage Gain.

Power Supply Rejection Ratio. Input Offset Voltage Drift.


Input Offset Current Drift. Input Common-Mode Voltage Range. Supply Current All Amps. Operating junction and storage temperature range. Repetitive and non-repetitive avalanche current. Thermal resistance junction to mounting base Thermal resistance junction to ambient.