BU4051BCF-E2

Analog Switches, Multiplexers, Demultiplexers Overview

The BU4051BCF-E2 is an analog multiplexer/demultiplexer manufactured by ROHM Semiconductor. It features a single channel with three selectable inputs or outputs, configured as a 3x 2:1 switch. The device operates on a single supply voltage ranging from 3 V to 18 V, or dual supplies up to ±9 V. Key electrical parameters include a maximum on-resistance of 950 Ohms, a bandwidth of 20 MHz, and a maximum power dissipation of 380 mW in the SOP-16 package. Switching performance specifies a maximum turn-on time of 550 ns and a maximum turn-off time of 550 ns. The component supports surface mount installation in an SOP-16 package and functions within an operating temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Provides analog signal routing through a single-channel, triple 2-to-1 multiplexing architecture.
• Supports flexible power configurations including single-supply operation up to 18 V and dual-supply operation up to ±9 V.
• Integrates high-voltage CMOS logic compatible with standard digital control interfaces.

Analog Switches, Multiplexers, Demultiplexers Applications

• Signal routing in data acquisition systems
• Audio signal switching applications
• Test and measurement equipment input selection

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix E2 for lead-free compliance and environmental standards before ordering. Confirm the SOP-16 surface-mount package type matches the target PCB footprint. Check current availability status as manufacturing lifecycles may change. Ensure the design accommodates the specified 380 mW power dissipation limit for the chosen thermal environment.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a single-channel, triple-input analog switch is required within a compact surface-mount form factor. Compare the 950 Ohm on-resistance against application signal integrity requirements. Verify that the 20 MHz bandwidth meets the frequency specifications of the signals being routed. Consider the -40°C to +85°C industrial temperature range for environmental suitability.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the BU4051BC series of high-voltage CMOS logic ICs produced by ROHM Semiconductor. It serves as the surface-mount SOP-16 variant of the through-hole DIP-16 BU4051BC. The series provides analog multiplexing capabilities for general-purpose electronic designs requiring reliable signal path switching.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The BU4051BCFF-E2 is listed as a similar level replacement with the same pinout and package. Verify functional equivalence regarding on-resistance and switching speeds before substitution.