DG418LEDQ-T1-GE3

The DG418LEDQ-T1-GE3 is part of Analog Devices’ DG4xx family of monolithic CMOS multiplexer/demultiplexer ICs. The IC features ultra-low input currents, low channel-to-channel switching times, and symmetrical break-before-make switching action. These characteristics make it ideal for a variety of applications in which superior isolation between channels and excellent on-resistance switching accuracies are required.

The DG418LEDQ-T1-GE3 is a quad SPST analog switch applicable in several different contexts. A single on-chip switch can connect any one of four input signal to any one of four output lines. The switches are designed such that the signal can be passed quickly and without the need for additional circuitry. This makes them suitable for applications like multiplexing or for bypassing lines in signal processing or communication systems. By using the logic level control input, the signal can be switched between high and low levels. This makes it possible to utilize this switch for controlling both TTL and CMOS logic..

The switching action of the DG418LEDQ-T1-GE3 is synchronous, meaning that any given switching action occurs when an associated control signal is present. During switching, there is a “break-before-make” function which ensures that there is no short circuit among the input and output lines, which is very important in applications which involve high frequency signals. The control signal can be high (1) or low in order to select the connection between the input and output lines. This is easier than using dual transistors to switch the signal.

The output impedance of the DG418LEDQ-T1-GE3 is very low, which means that it is useful for applications where higher output currents and resolutions are required. Consequently, this IC is used in multiplexers, low-level preamplifiers, and high-gain amplifiers.

In terms of its on-resistance switching accuracy, the DG418LEDQ-T1-GE3 has a maximum on-resistance of just 0.1Ω so it can accurately engage and disengage connections even at very high operating frequencies. This makes it particularly suitable for applications requiring high-speed, low-resistance switches such as control systems, data acquisition systems, communication systems, and others.

The DG418LEDQ-T1-GE3 is also specified over a wide temperature range, which is important in order to achieve consistent performance across a variety of operating conditions. Moreover, it is unaffected by power and ground variations, making it appropriate for applications in which such fluctuations are common.

Overall, the DG418LEDQ-T1-GE3 is a low-cost, reliable and highly accurate multiplexer/demultiplexer IC which is appropriate for a wide variety of applications as an analog switch, multiplexer, or demultiplexer. Its low on-resistance switching accuracy, wide operating temperature range, and fast switching time, as well as its “break-before-make” function, make it ideal for a wide range of analog and digital switching operations.