MC74LVX4051DTR2

Overview

The MC74LVX4051DTR2 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 TSSOP-16 package. The device operates with a digital power supply range of 2.5 V to 6.0 V and supports analog power supplies from -3.0 V to +3.0 V relative to ground. Key electrical parameters include a maximum propagation delay of 40 ns at 2.5 V, a typical bandwidth of 80 MHz, and a maximum ON resistance of 86 Ω at 3.0 V. It offers low leakage currents, break-before-make switching circuitry, and overvoltage tolerant control inputs.

Feature Summary

• Utilizes silicon-gate CMOS technology for fast propagation speeds and low ON resistances.
• Features improved linearity and lower ON resistance compared to metal-gate or High-Speed CMOS counterparts.
• Includes break-before-make circuitry to prevent signal shorting during channel transitions.
• Control inputs are overvoltage tolerant, enabling level translation from 6.0 V down to 3.0 V.

Applications

• Signal routing in data acquisition systems
• Audio and video signal switching
• Instrumentation and measurement equipment
• Communication systems requiring analog signal selection

Procurement Notes

Verify the specific ordering suffix 'DTR2' corresponds to the TSSOP-16 package and tape-and-reel shipping format. Confirm RoHS compliance status if required for your assembly process, as standard versions may differ from Pb-Free variants. Ensure the voltage ratings align with your system's power supply constraints before finalizing procurement.

Selection Notes

Select this component when a single-channel 8-to-1 analog switch is required with low distortion and high bandwidth. Consider the TSSOP-16 package for space-constrained surface-mount designs. Verify that the control logic voltage levels are compatible with the overvoltage tolerant inputs, especially if interfacing with 5 V or 6 V logic sources while operating at lower analog voltages.

Part Context

This part belongs to the MC74LVX4051 series of analog multiplexers. It shares pinout compatibility with devices like the LVX8051, HC4051A, and MC14051B. The 'DTR2' suffix specifically denotes the TSSOP-16 package type and reel packaging, distinguishing it from SOIC or SOEIAJ variants within the same functional family.

Replacement Considerations

Direct pin-compatible replacements include MC74LVX4051DR2G (SOIC-16) and MC74LVX4051DT (TSSOP-16 rail). For different packages, verify mechanical fit and thermal characteristics. Cross-reference with HC4051A or MC14051B only if speed and linearity requirements are less stringent.

FAQ

What is the maximum analog voltage swing supported by this device?

The analog input voltage can vary across the complete power supply range, from VEE to VCC. With recommended operating conditions, this allows for signals ranging from -3.0 V to +3.0 V or single-supply operation from 0 V to 6.0 V.

How does the device handle unused analog channels?

Unused analog inputs/outputs may be left floating. However, tying them to VCC or GND through a low-value resistor is recommended to minimize crosstalk and feedthrough noise picked up by the unconnected switches.

Is external protection required for voltage transients?

If voltage transients exceeding VCC or falling below VEE are anticipated on the analog channels, external Germanium or Schottky diodes are recommended to absorb current surges during clipping events.