ADG439FBRZ-REEL

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ADG439FBRZ-REEL is an interface switch from Analog Devices that belongs to the Analog Switches, Multiplexers and Demultiplexers family. It is a dual 4:1 multiplexer containing a pair of independent 4-channel multiplexers in a single 8-pin SOIC (Small Outline Integrated Circuit) package. The device can accept TTL or logic-level analog signals, and can also be driven with supplies up to 7V.

The ADG439FBRZ-REEL mainly finds application in controlling analog signals in a wide variety of devices, including medical, avionic and consumer electronics. It provides a low channel-to-channel crosstalk, typically −67 dB, and wide bandwidths, while also offering low power consumption, minimum objectionable power dissipation, minimal off-state leakage current, and minimum temperature-dependent switching characteristics.

The ADG439FBRZ-REEL features fast switching speed, with an on-channel resistance of typically 20 ohms, and an off-channel leakages of typically 500 nA at ±15V supply voltage. Additionally, its integrated off-channel leakage protection helps prevent accidental shorts. Its typical OFF isolation is −77 dB and its typical power dissipation is 0.4 mW.

The working principle of the ADG439FBRZ-REEL is based on the MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) switching mechanism. The device consists of four independent multiplexers interconnected by four N-channel MOSFETs, as shown in the block diagram below. The two interfacing/switching sections of the integrated circuit (IC) control the `select\' and `enables\' control signals which act together to enable the source along with the current of the selected output channel.

As you can see, the ADG439FBRZ-REEL is a robust and cost-effective device with a wide range of applications. With its high speed and low power consumption, it is an ideal solution for applications related to controlling analog signals in various electronics devices, like medical, avionic and consumer electronics.

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