NX3L4051HR,115

Overview

The NX3L4051HR,118 is a single low-ohmic 8-channel analog switch manufactured by NXP Semiconductors. It operates on a single supply voltage ranging from 1.4 V to 4.3 V and features three digital select inputs (S1 to S3) and one enable input (E). The device includes eight independent bidirectional inputs/outputs (Y0 to Y7) and a common input/output (Z). It provides very low ON resistance, typically 0.5 Ω at 4.3 V, with a maximum of 0.9 Ω across the full temperature range. The component supports break-before-make switching and high noise immunity.

Feature Summary

• Schmitt trigger action at digital inputs ensures tolerance to slow rise and fall times.
• Low threshold digital inputs allow driving by 1.8 V logic levels in 3.3 V applications without significant supply current increase.
• Capable of transmitting signals with amplitudes up to VCC from Z to Yn or vice versa.
• High ESD protection performance exceeding specified standards for HBM, MM, CDM, and IEC61000-4-2.

Applications

• Cell phone
• PDA
• Portable media player
• Analog multiplexing and demultiplexing
• Digital multiplexing and demultiplexing

Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to ensure correct packaging and tape specifications. Confirm that the package type matches the required thermal and footprint constraints for the target PCB design. Cross-reference the revision history to ensure compatibility with existing system designs.

Selection Notes

Select this component when an 8-channel analog switch is required within a 1.4 V to 4.3 V supply range. Ensure the application benefits from the low ON resistance and flatness characteristics for minimal signal attenuation. Verify that the HXQFN16 package dimensions fit the available board space and thermal requirements.

Part Context

This part belongs to the NX3L4051 series of low-ohmic analog switches. It shares functional similarities with other members like the NX3L4051PW but differs in package configuration. The HR variant utilizes the HXQFN16 package, while the PW variant uses TSSOP16. Both share identical electrical characteristics and pinout functionality.

Replacement Considerations

NX3L4051PW serves as a direct package alternative offering identical electrical performance in a TSSOP16 form factor. Designers requiring a different footprint should verify pin-to-pin compatibility and thermal dissipation capabilities before substitution.

FAQ

Can the NX3L4051HR handle 4.3 V signals with a 1.8 V controller?

Yes, the low threshold digital inputs allow the device to be driven by 1.8 V logic levels in 3.3 V applications without a significant increase in supply current, enabling it to switch 4.3 V signals.

What is the maximum OFF-state leakage current?

At VCC = 3.6 V to 4.3 V, the maximum OFF-state leakage current is ±50 nA at 25 °C and ±500 nA at +125 °C.

Does the device support break-before-make switching?

Yes, break-before-make switching is guaranteed by design to prevent short circuits during channel transitions.