CD4067BPWR

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CD4067BPWR is a CMOS analog switch IC that provides 16 low-on-resistance, logic level-compatible switches. It is typically used in applications where logic and analog signals must be multiplexed or cross-connected. This device comes in a 14-pin packaging that is designed to easily mate with a variety of standard connectors. Additionally, the CD4067BPWR is designed to be powered by a single +5V supply, with a shutdown pin for power savings applications. This makes it an ideal choice for interface applications in mobile devices including tablets and laptops.

Application Field for CD4067BPWR

CD4067BPWR is found in a variety of basic logic applications such as audio switching, cross-point switching and multiplexing. Audio switching applications include the distribution of multiple audio sources to multiple destinations while cross-point switching refers to processes like the virtual connection of a number of inputs to a number of outputs. Multiplexing is mostly seen in applications such as switching a single input to one of two loads. This type of application is often done to control a single output when multiple inputs are present.

CD4067BPWR can also be found in applications such as remote control systems, automotive electronics and industrial monitoring and control. Automotive electronics includes applications like headlights switching, antilock braking systems and door lock actuators. Industrial monitoring and control uses multiplexing in applications such as sensing various different parameters with a single device, like temperature, flow and pressure. Lastly, remote control systems, like those found in sprinkler systems, use the CD4067BPWR in order to switch between its various inputs and outputs.

Working Principle of CD4067BPWR

The CD4067BPWR has 16 independent single-pole/single-throw (SPST) analog switches in a single package. Each switch is controlled by a single digital input, allowing for easy multiplexing of a single input to multiple outputs. Additionally, the signals can be multiplexed in both directions; the inputs can be connected to the outputs or the output can be connected to the inputs.

The logic input levels of the CD4067BPWR are compatible with CMOS and TTL logic levels, but they can also be used with other logic families such as ECL and NMOS. The high logic state must be greater than VCC/2, while the low logic state must be less than 0.8V. Additionally, the pull-down resistors must be able to provide a minimum of 10mA of current without exceeding the maximum allowable current.

Conclusion

The CD4067BPWR is a versatile and power-efficient CMOS integrated circuit designed to switch from multiple logic and analog signals. Its main applications include audio switching, cross-point switching, multiplexing, automotive electronics, industrial monitoring, and control, and remote control systems. This device is well-suited for a variety of interfacing applications in both mobile and embedded systems due to its compatibility with various logic families and its low power consumption.

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