DG418LEUA+

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DG418LEUA+ is a monolithic CMOS analog multiplexer/demultiplexer designed to provide a single-chip solution for data acquisition and control applications. This chip offers a unique 4: 1 Multiplexer/Demultiplexer combination (4 inputs and 1 output), which makes it ideal for a broad range of analog multiplexing applications.

The DG 418LEUA+ is composed of 4 analog switches, a demultiplexer, and a control logic block. Analog switches allow each of the four inputs to be switched directly to the single output when the appropriate control inputs are logic high. The demultiplexer block, on the other hand, provides up to 32 distinct output combinations when the appropriate control inputs are logic low.

The DG 418LEUA+ offers a wide range of applications in analog data acquisition and control. It can be used to switch inputs and outputs of voltage control loops, select signals from standard interface buses, or multiplex multiple channels into a single output. It is also useful in data communication systems, such as digital multiplexers, where it can be used to direct features of data frames to specific receivers.

Its advantages include a high slew rate of 25V/microsec and low switching noise of 2µVrms. It also has a low operating temperature of -40°C to 125° C and a wide supply voltage range of 4V to 13.5V to accommodate a variety of implementations. In addition, it supports supply current down to 0.5 µA. The wide power range makes it suitable for both battery and line-powered applications.

In terms of control logic, the DG 418LEUA+ offers three selection signals, A, B, and C, for controlling the multiplexer/demultiplexer combination. When the A, B and C logic inputs are logic low, the multiplexer operation is enabled and the desired input can be selected from the four inputs. When the logic inputs are logic high, the demultiplexer operation is enabled and up to 32 distinct output combinations can be selected.

Finally, the DG 418LEUA+, with its wide range of application fields and a competitive supply current rating, is ideally suited for data acquisition and control applications. It offers a single-chip solution for a broad range of analog multiplexing applications, such as voltage control loops, standard interface buses, and data communication systems. With its robust features and wide power range, it proves to be a reliable choice in analog multiplexer/demultiplexer solutions.

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