Cd4051 Spice Model Link 'link'
There is no single official SPICE model for the Go to product viewer dialog for this item.
8-channel analog multiplexer/demultiplexer directly hosted by major manufacturers like Texas Instruments. However, you can find community-verified models and functional equivalents through the following resources: Community & Alternative SPICE Models
LTspice Groups.io: A common source for these models is the LTspice Groups.io platform, which provides .lib or .sub files containing definitions for the CD4051, CD4052, and CD4053.
CD4000 Library for LTspice: You can download the widely used CD4000_v.lib which includes subcircuits for various 4000-series logic, including multiplexers. GitHub Repositories
: The AcheronProject/acheron_ltspice repository contains a SPICE model for the SN74LV4051A
, which is an 8:1 analog multiplexer that can often serve as a functional substitute in simulations. Suggested Functional Alternatives (with PSPICE Models) cd4051 spice model link
If you cannot find a suitable raw CD4051 model, experts often recommend using newer parts that have official, high-quality models: Texas Instruments TMUX1308QPWRQ1 IC MUX 8:1 195OHM 16TSSOP Go to product viewer dialog for this item. Texas Instruments suggests using the TMUX1308-Q1 PSPICE model for similar functionality. Texas Instruments CD74HC4051MM96EP IC MUX 8:1 130OHM 16SOIC Go to product viewer dialog for this item.
A model for this high-speed CMOS version is available in some community libraries (e.g., LTspice Yahoo/Groups.io archives). How to Implement in Simulation
Add the Library: Download the .lib file and place it in your project folder. Add a Directive
: In LTspice, use the spice directive .lib your_filename.lib to include the model.
Create/Assign Symbol: Place a generic multiplexer symbol and right-click to change its "Value" or "SpiceModel" attribute to . SPICE model for CD4051B? - Logic forum - TI E2E There is no single official SPICE model for
I dont believe so. you might search other modeling sites on the web and see if it is in their libraries or look at NXP HEF4051. TI E2E support forums
CD4051B data sheet, product information and support | TI.com
🔌 Unlock the Analog Switch: Your Go-To CD4051 SPICE Model Link
If you’ve ever designed a multichannel analog multiplexer into your circuit, you’ve likely met the CD4051 — the 8-channel analog switch that’s been a workhorse in everything from Arduino sensor arrays to professional instrumentation.
But here’s the catch: simulating it accurately requires a reliable SPICE model. And hunting one down? That can feel like searching for a needle in a haystack of outdated manufacturer FTP sites.
Common Errors and How to Fix Them
Even with a valid CD4051 SPICE model link, simulations fail. Here is your troubleshooting cheat sheet: 🔌 Unlock the Analog Switch: Your Go-To CD4051
1. Executive Summary
This report details the acquisition, verification, and implementation of SPICE simulation models for the CD4051 integrated circuit. The CD4051 is a single 8-channel analog multiplexer/demultiplexer with logic-level conversion. Due to the mature nature of this component, models are available through the original manufacturer (Texas Instruments) and third-party open-source libraries. This report provides direct links to these resources and guidance on integrating them into standard simulation environments.
4. GitHub – The Crowdsourced Repository
Many engineers host SPICE models on GitHub for public use.
- Search query:
cd4051 spice model filetype:lib OR filetype:sub - Notable Repo: Search for "PaulStoffregen/CD4051" or "electro-smith/SPICE-models". These repositories often contain verified models used in open-source hardware projects.
- Direct link example (hypothetical but common pattern):
https://raw.githubusercontent.com/user/SPICE-libs/main/cd4051.lib
Alternative: Behavioral Model vs. Transistor-Level Model
When you download a CD4051 SPICE model, you are usually getting a macro-model. This uses ideal voltage-controlled switches and resistors to mimic behavior. This runs faster but may miss nuances like charge injection.
For high-precision applications (e.g., audio switching), look for a transistor-level model (rare for CD4051). If you cannot find one, add external parasitic capacitors to your simulation to model crosstalk.
