DG401DY+

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The DG401DY+ is an analog switch and multiplexer/demultiplexer specifically designed for low noise operation and low charge injection characteristics. It is ideal for precision applications where switching noise, on and off capacitance, and power consumption are critical performance requirements. The DG401DY+ has been designed for superior repeatability and long term stability.

The DG401DY+ operates with supplies of -0.3 to +7V and comes in 4 bit and 4:1 multiplexer/demultiplexer configurations. It is latchable with very high on-off switching performance that eliminates any crosstalk between channels. The switch also features low gate leakage current, high isolation voltage and a low power consumption rating.

In terms of its application fields, the DG401DY+ is an ideal choice for analog/RF switching applications since it is optimized for very low noise (80 dB typical) and low charge injection characteristics. The switch can handle differential control frequencies up to 1.6 KHz and provides superior performance in communication systems, medical imaging systems, instrumentations, consumer audio/video systems, and portable applications.

The working principle of the DG401DY+ is based on a monolithic CMOS technology which provides superior switching performance, noise rejection, and low leakage current. The switch comprises a drive stage and a pair of buffered four-channel multiplexers. The drive stage acts as a buffer on both the input and output sides and serves to reduce crosstalk between channels, improve on-off switching time, and reduce charge injection. The use of a common differential output pin provides improved phase matching and uniformity of performance. The multiplexer section provides full on/off switching capability between specified logic inputs and outputs.

The DG401DY+ is optimized for very low noise, low charge injection and low power consumption. It promises a high level of repeatability and long term stability in analog/RF switching applications. Its innovative monolithic CMOS technology and differential drive circuitry allow for improved phase matching and uniformity of performance, which makes it an ideal choice for precision applications.

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