HCF4066BEY

Signal Switches, Multiplexers, Decoders Overview

The HCF4066BEY is a monolithic quad bilateral switch fabricated in Metal Oxide Semiconductor technology, designed for the transmission or multiplexing of analog or digital signals. It operates on a supply voltage range of 3V to 20V and features four independent switches with a single control signal per switch. The device provides a typical on resistance of 125Ω at 15V operation, which remains relatively constant over the full input signal range. It exhibits extremely low off-switch leakage current of 10pA typical at 10V supply and 25°C ambient temperature.

Signal Switches, Multiplexers, Decoders Feature Summary

• Features matched on resistance within 5Ω typical over the 15V signal input range for consistent performance across all channels.
• Provides high linearity and an extremely high on/off output voltage ratio of 65dB typical at 10kHz frequency.
• Includes extremely high control input impedance that isolates the control circuit from the signal circuit.

Signal Switches, Multiplexers, Decoders Applications

• Transmission or multiplexing of analog or digital signals
• Bilateral signal transmission via digital control logic
• 4-channel PAM multiplexer systems

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify component authenticity through authorized STMicroelectronics distributors. Confirm package integrity matches the specified 14-DIP format. Check datasheet revisions to ensure compliance with current JEDEC JESD13B standards. Validate operating conditions against absolute maximum ratings before integration into final designs.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when constant on impedance over the input signal range is required. Consider its pin-for-pin compatibility with HCF4016B but note the significantly lower on resistance. Evaluate the -55°C to +125°C operating temperature range for environmental suitability. Ensure supply voltage requirements align with the 3V to 20V recommended operating conditions.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the HCF4066B series of quad bilateral switches. It is available in DIP and SOP packages. The device consists of four independent bilateral switches where both p and n devices are biased simultaneously by the control signal. This configuration eliminates threshold voltage variation with input signals.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct substitute: CD4066BE (Texas Instruments). Similar substitute: CD74HC4066E (Texas Instruments). Verify pinout compatibility and electrical characteristics match application requirements before substitution.

Signal Switches, Multiplexers, Decoders FAQ

How does the HCF4066BEY handle input signal variations?

The well of the n-channel device is tied to the input when ON or VSS when OFF. This keeps the on resistance low and constant over the full operating signal range.

What is the typical feedthrough frequency when the switch is off?

The -50dB feedthrough frequency is 1MHz when the control voltage equals VSS, with a 5V peak-to-peak sine wave input centered at 0V.