DG211CJ

The DG211CJ is a single-pole/single-throw (SPST) CMOS analog switch/multiplexer with a bandwidth of 450 Mhz and fast disable response time (<10 ns). It is available in 6-pin SC-70 and SOIC-8 packages and can switch up to ± 10V. The DG211CJ is designed for applications where the cost and power of a traditional analog switch can be prohibitively expensive and power consuming.

The DG211CJ is a three-terminal switch with a single control input and two digital logic control inputs. The single control input provides selection of either digital or analog data, allowing the user to select the type of data to be switched. The two digital logic control inputs are used to control the analog switch through 5-volt CMOS logic levels. If both of the digital control inputs are high, then the analog switch will be disabled and all inputs will be floating open.

The DG211CJ can be used in a variety of different applications, such as switching signals or multiplexing analog signals. The key feature of the DG211CJ is its low on-state resistance of less than 5 ohms. This allows it to be used as an analog multiplexer/demultiplexer and switch multiple analog signals in a single pass. It also has a low off-state leakage current of less than 1 uA, allowing it to switch audio and video signals without introducing unwanted noise.

The DG211CJ is ideal for use in high-speed data acquisition systems, automotive infotainment systems, test and measurement equipment, robotics, and medical imaging systems. Its wide switching bandwidth allows for high-speed analog switching without introducing distortion. Its low-power operation reduces system dissipation, making it ideal for mobile and battery-powered systems.

The working principle of the DG211CJ is that it switches between two analog states, a high-voltage state (Vref) and a low-voltage state (Vgnd). Depending on the incoming logic signals on the two control pins, the analog switch will either pass through the high-voltage or low-voltage input, or it will remain in a disabled state. When the switch is enabled, it will latch in either a high or low state, depending on the state of the single control input. When the switch is disabled, all inputs will be open and floating.

In summary, the DG211CJ is a fast and cost-effective CMOS analog switch/multiplexer with a wide switching bandwidth, low on-state resistance, and low-power operation. It can be used to switch analog signals in a single pass, multiplex and demultiplex analog signals, and can handle high-speed data acquisition with minimal distortion. It is an ideal solution for mobile and battery-powered applications, as well as test and measurement equipment and automotive infotainment systems.