74HC4051DB,118

Overview

The Nexperia 74HC4051DB,118 is an 8-channel analog multiplexer/demultiplexer housed in a 16-lead SO plastic small outline package (SOT109-1). It functions as a single-pole octal-throw switch with three digital select inputs, eight independent I/Os, and one common I/O. The device supports a wide analog input voltage range from -5 V to +5 V and operates on supply voltages between 2.0 V and 10.0 V for the HC variant. It features low ON resistance, typically ranging from 60 Ω to 100 Ω depending on supply conditions, and includes built-in ESD protection exceeding 2000 V HBM. The component is specified for ambient temperatures from -40 °C to +125 °C.

Feature Summary

• Provides bidirectional analog signal routing suitable for both multiplexing and demultiplexing applications
• Features logic level translation capabilities to interface 5 V logic with ±5 V analog signals
• Includes clamp diodes on inputs to allow interfacing with voltages exceeding VCC using current limiting resistors

Applications

• Analog multiplexing and demultiplexing
• Digital multiplexing and demultiplexing
• Signal gating

Procurement Notes

Verify the ordering suffix '118' against official Nexperia documentation to confirm it corresponds to the standard SO16 tape and reel or tube configuration. Ensure the specific revision of the datasheet matches the production batch requirements. Confirm that the temperature grade aligns with the design's thermal constraints before finalizing procurement orders.

Selection Notes

Select this component when an 8-channel analog switch is required within a standard SO16 footprint. The HC logic family offers compatibility with CMOS standards and wider supply voltage ranges compared to HCT variants. Consider the ON resistance specifications relative to the expected signal currents and supply voltage differentials to ensure signal integrity across the operating temperature range.

Part Context

This part belongs to the 74HC/HCT4051 series of 8-channel analog multiplexers. It shares functional pinouts with industry-standard equivalents but utilizes Nexperia's specific manufacturing processes. The DB suffix indicates the SO16 package variant, distinguishing it from TSSOP or QFN options available within the same logical family.

Replacement Considerations

Direct pin-compatible replacements include other manufacturers' 74HC4051 variants in SO16 packages. Verify static and dynamic electrical characteristics, particularly ON resistance and leakage currents, to ensure equivalence in the target application environment.