While the PIN diode characteristics mean that it is not suitable for many standard rectifier applications, they provide some properties that can be used in a number of specific areas. But for high-frequency signals, it operates like a resistance means shows linear behavior like a resistor. When forward-biased, it acts like a current-controlled variable resistance. Dec 24,2020 - Test: P-i-n Diode And Its Characteristics | 10 Questions MCQ Test has questions of Electrical Engineering (EE) preparation. Under a forward bias of 1 mA (the "on" state), a typical PIN diode will have an RF resistance of about 1 ohm, making it a good conductor of RF. This is shown in Figure (b) and (c). The performance characteristics of the PIN diode depend mainly on the chip geometry and the processed semiconductor material in the intrinsic or I - region, of the finished diode. The wide intrinsic region makes the PIN diode an inferior rectifier (one typical function of a diode), but it makes it suitable for attenuators, fast switches, photodetectors, and high-voltage power electronics applications. PIN Diode Basics 2. The photo diode … TABLE OF FIGURES Number Description. 3 — 26 November 2018 Product data sheet 1 Product profile 1.1 General description General-purpose PIN diode in an SOD523 small SMD plastic package. Since the intrinsic (i) region has no free charges, its resistance is high, so that most of the reverse-biased voltage is applied to this i region. This high-frequency resistance may vary over a wide range (from 0.1 Ω to 10 kΩ in some cases;[1] the useful range is smaller, though). PIN diodes are useful as RF switches, attenuators, photodetectors, and phase shifters.[2]. The electric field induces because of the movement of the holes and the electrons. At a lower level of reverse bias, the depletion layer becomes fully depleted. While PIN diodes offer some unique advantages relative to other non-mechanical options such as CMOS switches and MEMS structures, they are difficult to design into a circuit unless their characteristics are clearly understood. A PIN diode switch can switch much more quickly (e.g., 1 microsecond), although at lower RF frequencies it isn't reasonable to expect switching times in the same order of magnitude as the RF period. 1.2 Features and benefits •Low diode capacitance •Low diode forward resistance 1.3 Applications •General RF applications If the signal is large, then when the PIN diode starts to rectify the signal, the forward current charges the drift region and the device RF impedance is a resistance inversely proportional to the signal amplitude. T… Large Signal Model . Click here to go to our page on reflection attenuators. Barrier diode and low voltage diodes are the other names for Schottky diode. PIN Diode VI Characteristics The forward series resistance characteristic and the reverse capacitance characteristic are shown graphically in Below Figure for a typical pin diode. In modern fiber-optical communications, the speed of optical transmitters and receivers is one of the most important parameters. In a pure or intrinsic part of PIN diode, there is a large amount of charge stored. Nevertheless, the forward voltage drop of Schottky diode is very low when compared to the P-N junction diode. The PIN diode obeys the standard diode equation for low-frequency signals. discussions of PIN diode characteristics, the most commonly used PIN diode-based products, and the trade-offs encountered in designing products around them. For everything from distribution to test equipment, components and more, our directory covers it. 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