MC74LVXT4051D

Overview

The MC74LVXT4051D is an analog multiplexer/demultiplexer utilizing high-performance silicon-gate CMOS technology. It provides a single-pole, eight-position plus common-off configuration within a 16-pin SOIC package. The device operates on a digital supply voltage (VCC) ranging from 2.5 V to 6.0 V and supports an analog power supply range (VCC - VEE) of ±3.0 V to ±3.0 V. Key electrical parameters include a maximum propagation delay of 40 ns at 2.5 V, a maximum ON resistance of 86 Ω at 3.0 V, and a bandwidth of 80 MHz. It features break-before-make circuitry and over-voltage tolerant inputs compatible with standard TTL levels.

Feature Summary

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

Applications

• Signal routing in data acquisition systems
• Audio and video signal switching applications
• Level translation between 6.0 V and 3.0 V logic domains

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and environmental compliance. The 'D' suffix denotes the SOIC-16 package. Confirm RoHS status and lead-free availability through current datasheets, as manufacturing specifications may be updated without notice. Ensure compatibility with required operating temperature ranges before finalizing procurement.

Selection Notes

Select this component when a low ON resistance and high linearity are required for analog signal paths. The LVXT series offers superior performance metrics compared to older metal-gate or High-Speed CMOS switches. Verify that the control logic levels match the system's TTL requirements and ensure the analog signal swing remains within the defined VCC and VEE boundaries to maintain optimal switch performance.

Part Context

This device belongs to the MC74LVXT4051 family of analog multiplexers. It shares pinout compatibility with legacy devices such as the HC4051A and metal-gate MC14051B, facilitating direct upgrades in existing designs. The LVXT series represents a modernization of these functions using advanced silicon-gate CMOS processes to enhance speed and reduce power consumption.

Replacement Considerations

Direct pin-compatible alternatives include the SN74LV4051 series from Texas Instruments. When substituting, verify that the replacement device meets the required ON resistance and propagation delay specifications for the specific application environment.