MC74LVXT4051MELG

Overview

The MC74LVXT4051MELG is an analog multiplexer/demultiplexer manufactured by onsemi, utilizing high-performance silicon-gate CMOS technology. It features a single-pole, eight-position plus common off configuration housed in a 16-lead SOEIAJ package with tape and reel shipping. The device operates within a digital power supply range of 2.5 V to 6.0 V (VCC to GND) and supports an analog power supply range from -3.0 V to +3.0 V (VEE). Key electrical parameters include a maximum propagation delay of 40 ns at 2.5 V, a maximum ON resistance of 86 Ohms at 3.0 V, and a bandwidth of 80 MHz. It provides over-voltage tolerant inputs for level translation.

Feature Summary

• Utilizes silicon-gate CMOS technology for fast switching speeds and low leakage currents.
• Features break-before-make circuitry to prevent signal shorting during channel transitions.
• Provides improved linearity and lower ON resistance compared to metal-gate or HSL counterparts.
• Supports operation on single supplies or split supplies up to +/- 3.0 V.

Applications

• Signal routing in data acquisition systems
• Audio and video signal switching
• Programmable gain amplifiers
• Data acquisition front ends

Procurement Notes

Verify the specific ordering suffix ELG corresponds to the SOEIAJ-16 package and 2000-unit tape and reel quantity as listed in the official onsemi documentation. Confirm RoHS compliance status for the specific manufacturing lot. Ensure the component meets the required operating temperature range of -55°C to +125°C for the intended application environment.

Selection Notes

Select this component when an 8-channel analog switch with TTL-compatible control inputs is required. The LVXT series offers superior speed and linearity compared to standard HC or HCT families. Consider the SOEIAJ-16 package dimensions if board space constraints favor this form factor over SOIC or TSSOP alternatives. Verify that the analog signal voltage swing remains within the VCC to VEE limits.

Part Context

This part belongs to the MC74LVXT4051 family of analog multiplexers. It shares pinout compatibility with devices like the LVX8051, HC4051A, and MC14051B. The M suffix indicates the SOEIAJ-16 package, while the ELG suffix denotes the specific tape and reel packaging configuration for automated assembly.

Replacement Considerations

Direct pin-compatible replacements include MC74LVXT4051DR2G (SOIC-16) and MC74LVXT4051DT (TSSOP-16). For non-pin-compatible options, consider SN74LV4051A from Texas Instruments or 74LV4051PW from Nexperia, noting differences in package type and specific electrical characteristics.

FAQ

What is the function of the Enable pin?

When the Enable pin is HIGH, all analog switches are turned off, isolating the common output/input from the selected channels.

Are the control inputs compatible with standard logic levels?

Yes, the Channel-Select and Enable inputs are compatible with standard TTL levels and are over-voltage tolerant for level translation from 6.0 V down to 3.0 V.

How does the device handle unused analog inputs?

Unused analog inputs/outputs may be left floating, but tying them to VCC or GND through a low-value resistor helps minimize crosstalk and feedthrough noise.