These switches can conduct in both the directions making it bilateral, it is commonly used for multiplexing analog or digital signals. The switches have very low internal resistance making it suitable for audio applications. Pin Number. Pin Name. Input pins for the four bilateral switches. Output pins for the four bilateral switches.
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It is pin for pin compatible with CDB, but exhibits a much lower on state resistance. In addition, the on-state resistance is relatively constant over the full input signal range. A single control signal is required per switch. Both the p and the n device in a given switch are biased on or off simultaneously by the control signal.
As shown in Figure 1, the well of the n channel device on each switch is either tied to the input when the switch is on or to VSS when the switch is off. This conguration eliminates the variation of the switch transistor threshold voltage with input signal, and thus keeps the on-state resistance low over the full operating signal range. The advantages over single channel switches include peak input signal voltage swings equal to the full supply voltage, and more constant on-state impedance over the input signal range.
For sample and hold applications, however, the CDB is recommended. Reliability Information Thermal Resistance. TABLE 1. NOTES: 1. TABLE 2. TABLE 3. All voltages referenced to device GND. The parameters listed on Table 3 are controlled via design or process and are not directly tested.
These parameters are characterized on initial design release and upon design changes which would affect these characteristics. TABLE 4. TABLE 5. TABLE 6. TABLE 7.
TABLE 8. All Intersil semiconductor products are manufactured, assembled and tested under ISO quality systems certication. Intersil products are sold by description only. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use.
No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. Dimensions in parenthesis are in millimeters and are derived from the basic inch dimensions as indicated. Grid graduations are in mils inch. This provision avoids any permanent current ow or clamp action on the VDD supply when power is applied or removed from the CDB.
In certain applications, the external load-resistor current may include both VDD and signal line components. To avoid drawing VDD current when switch current ows into terminals 1, 4, 8 or 11 the voltage drop across the bidirectional switch must not exceed 0.
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CD4066 Datasheet PDF