ADG408BR-REEL7

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The ADG408BR-REEL7 belongs to the family of interface analog switches, multiplexers, demultiplexers. Its cross-point array switches offers a remarkably low ?on? resistance of 4.5Ω, enabling high signal integrity at a relatively low cost. This chip is also very dense, as it serves eight single-pole/single-throw (SP/ST) analog switches in just 8-lead small surfaces mount (SMT) package. Also, single supply operation, being between 2.7 V and 5.5 V, and no external components makes the ADG408BR-REEL7 very easy to handle. Furthermore, its low power consumption, high immunity to latch-up, and excellent matching between switches limit its application capabilities.

The ADG408BR-REEL7 has a wide range of potential applications. These may include any circuit requiring single-pole/single-throw switches for data bus switching, multiplexing, sample and hold, analog multiplexers, variable gain amplifiers (VGAs), automatic test equipment (ATE), special-purpose A/D converters, and system monitoring and control. This chip also provides better gain stability, low cross-talk, and fast switching than its predecessors, resulting in an increased long-term performance with improved reliability.

The internal working principle of ADG408BR-REEL7 is based on its CMOS construction. It consists of two sets of four single transistor switches, which can be independently enabled or disabled. The switches are disabled by a logic "1" applied to the respective control lines, while a logic "0" is applied to the control lines enables the switches. The switches are connected in a cross-point array, allowing up to four analog channels to be switched, multiplexed, or demultiplexed by a single 8-lead SMT package. Its metal-oxide semiconductor technology provides high input impedance, low level-shifting, and low power consumption for applications requiring small form factors and high reliability. The high level-shifting ensures that the signal switching path is not corrupted by any noise from the noise-sensitive integrated circuits (IC) connected to the ADG408BR-REEL7.

The ADG408BR-REEL7 also features protection characteristics. Its high ESD protection ratings of up to 6 kV makes sure that internally generated transients or externally applied voltages do not create false states in the switches. Pin 7 and 8, the power input pins, are short-circuit protected and can be driven up to 10 V, allowing a wide range of operational voltages. Furthermore, the input pins are filtered to reduce the possibility of false logic state due to electrical noise. Lastly, the chip includes multiple power-down modes, providing very low power consumption when in inactive mode.

To summarize, the ADG408BR-REEL7 is a versatile 8-lead small form factor analog switch ideal for a wide range of applications. It allows for low power operation, single supply operation, and provides high immunity to latch-up. These features, coupled with its low ?on? resistance and ESD protection ensure excellent signal integrity and improved reliability, thereby making it an ideal choice for applications requiring small form factors and high performance.

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