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PI4IOE5V9555 Product Databrief NEW PRODUCT
PI4IOE5V9555 Product Databrief NEW PRODUCT

... expansion for I2C-bus/SMBus applications and was developed to enhance the Pericom Semiconductors family of I2C-bus I/O expanders. The improvements include higher drive capability, 5V I/O tolerance, lower supply current, individual I/O configuration, and smaller packaging. I/O expanders provide a sim ...
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... 21. The electric field around a positive charge points _________________________ the charge. 22. Electric force is ____________________ proportional to the amount of charge and ____________________ proportional to the square of the distance between the charges. 23. The SI unit of electric current is ...
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... With the integrated reflector cup design, light emission via sidewalls is suppressed effectively. The majority of the light rays are emitted from the top planar surface, so that the divergence angle of the device can be reduced by 16°. Consequently, only the top planar surface needs to be phosphor c ...
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... Some applications require amplified differential outputs, such as driving Gilbert-cell mixers (such as the LT5503 I/Q modulator) or RF transformers. For such applications, the LTC1668 differential current outputs can be amplified with twin transimpedance stages as shown in Figure 2, which offers th ...
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Opto-isolator



In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.
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