MC14551BFELG

Analog Switches, Multiplexers, Demultiplexers Overview

The MC14551BFELG is a CMOS analog switch manufactured by onsemi, featuring four single-pole double-throw (SPDT) circuits within a single integrated circuit. It operates on a single power supply ranging from 3V to 18V and utilizes a 16-SOEIAJ surface-mount package. The device provides a maximum on-resistance of 280 ohms with a channel-to-channel matching tolerance of 10 ohms. Key electrical characteristics include a -3dB bandwidth of 17MHz, an off-state leakage current of 100nA maximum, and a channel capacitance of 5pF. It supports an extended operating temperature range from -55°C to 125°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Four independent SPDT switching channels integrated into a single monolithic structure
• Wide single-supply voltage operation capability for flexible system integration
• High isolation performance with low off-state leakage and minimal channel capacitance

Analog Switches, Multiplexers, Demultiplexers Applications

• Signal routing in data acquisition systems
• Audio signal path switching
• Test and measurement equipment multiplexing

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix ELG against official manufacturer documentation to confirm package type and environmental compliance status. Confirm component availability as this series may be subject to obsolescence notices. Ensure the procurement source provides valid traceability documents and original manufacturer certification to avoid counterfeit components.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when multiple SPDT switching functions are required in a compact surface-mount footprint. Consider the 280-ohm on-resistance limit for signal integrity requirements. Verify that the 17MHz bandwidth meets the frequency specifications of the signals being switched. Ensure the design accommodates the specified wide operating temperature range if deployed in harsh environments.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MC14551 family of CMOS analog switches. The base model MC14551 defines the core functionality, while the BFELG suffix indicates specific packaging and manufacturing lot details. This family is designed for general-purpose analog signal switching applications requiring low power consumption and high reliability.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The BU4551BF-E2 from Rohm Semiconductor offers identical pinout and electrical specifications, including 280-ohm on-resistance and SPDT configuration. Verify package compatibility between SOEIAJ and SOP variants before substitution.