CD4067BPWG4

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CD4067BPWG4 is an integrated circuit belonging to the family of interface logic, specifically analog switches and multiplexers-demultiplexers. It is a CMOS logic device composed of 16 independent, single-channel analog switches. It also provides steers and signal inversion if desired.

The main application field of CD4067BPWG4 can be found in signal routing, such as in audio, video or any other multiple signals routing, especially due to its very low power consumption, low cost, small size and low signal distortion, even in wideband signals.

The basic working principle of CD4067BPWG4 is fairly simple. It is composed, as mentioned before, of 16 independent analog switches, each having its own selectable, full-on or full-off control line. With each switch having a source voltage, two control pins and two sink pins, the basic building block of this circuit is basically a single 4-bit CMOS digital switch. It works as an electronic switch, transistor channels, allowing current to flow from the source through one of the two sink pins, depending on the logic level applied to the control pins.

The 16 independent switches can be used in general, parallel or serial modes. The general mode is a two-level division across the 16 switches, where each switch is independently controllable. The parallel mode can be used to route multiple, analog signals, and the serial mode can be used to transfer the signals one at a time. The selection is done by applying external logic levels to the select pins provided by the device.

The logic levels for the switches can be supplied through logic functions, as well as other components, such as shift registers, latches, counters and decoders. It also has an enable pin which allows the user to control all the switches at once. This feature is especially useful for control large number of switches quickly.

Other features of the device include output clamping, wide bandwidth and operation from -5V to 6V power supplies for multiplexing and demultiplexing of analog signals, with low power consumption and limited dissipation.

The circuit has low distortion, low leakage and low capacitance, which makes it suitable for a variety of applications such as switched capacitor filters and analog signal routing. Its effective noise immunity is achieved through its anti-parallel diodes and option for common mode currents.

Overall, with its wide array of features and its low price, the CD4067BPWG4 is an attractive choice for a variety of analog applications, especially due to its small size and wide operating temperature range.

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