MC14051BFEL

Analog Switches, Multiplexers, Demultiplexers Overview

The MC14051BFEL is a digitally controlled analog multiplexer implementing an SP8T solid-state switch within a 16-pin SOEIAJ package. It operates on a supply voltage range of 3.0 Vdc to 18 Vdc, supporting analog signals across the complete supply span. The device features low ON impedance and very low OFF leakage current, with linearized transfer characteristics and typical low noise of 12 nV/√Hz at frequencies greater than or equal to 1.0 kHz. It includes triple diode protection on control inputs and utilizes a break-before-make switching function.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Digitally controlled analog switching with integrated level conversion for direct interface with standard CMOS logic levels.
• Triple diode protection on control inputs ensures robustness against high static voltages and electric fields.
• Break-before-make switching action prevents signal overlap during channel transitions.
• Linearized transfer characteristics maintain signal integrity across the full analog voltage range.

Analog Switches, Multiplexers, Demultiplexers Applications

• Signal routing in data acquisition systems requiring multi-channel selection.
• Analog signal conditioning circuits utilizing digital control interfaces.
• Test and measurement equipment needing low-leakage analog switching.

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix BFEL corresponds to the SOEIAJ-16 package and tape-and-reel shipping configuration. Confirm RoHS compliance status by checking for the G suffix variant if lead-free requirements are mandatory. Ensure the component matches the official datasheet specifications for electrical parameters before integration into production designs.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when an 8-channel analog multiplexer is required with wide supply voltage flexibility up to 18 V. Consider the HC4051 series if lower ON resistance is critical for the application. Verify that the SOEIAJ-16 package dimensions fit the available PCB footprint and that the operating temperature range meets environmental constraints.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MC1405xB family of analog multiplexers from onsemi, which also includes the dual 4-channel MC14052B and triple 2-channel MC14053B. These devices share similar electrical characteristics and pinout compatibility, allowing for flexible design choices based on channel count requirements while maintaining consistent performance metrics.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MC14051B serves as a pin-for-pin replacement for the CD4051. Designers may also consider the HC4051 for applications requiring lower ON resistance, though speed and drive capabilities will differ. Verify pin compatibility and electrical limits when substituting with other manufacturers' equivalents.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the maximum analog voltage swing supported by the MC14051BFEL?

The device supports an analog voltage range (VDD - VEE) of 3.0 V to 18 V, allowing control of analog signals up to the complete supply voltage range.

How does the MC14051BFEL handle control input protection?

The device features triple diode protection on its control inputs (INH, A, B, C) to guard against damage due to high static voltages or electric fields.

What is the typical noise performance of this multiplexer?

The MC14051BFEL exhibits low noise, typically 12 nV/√Hz at frequencies greater than or equal to 1.0 kHz.