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Eldo Classic

Foundry Certified SPICE Accurate Circuit Simulation

When accuracy matters designers choose Eldo Classic, Mentor’s “golden” SPICE accurate circuit simulator, designed to address the complex needs of analog and mixed-signal designers.

Get all the capability and accuracy of SPICE-level simulation from a native analog simulation engine yielding the highest accuracy for the verification of the most complex analog IP’s or SoC’s. Eldo Classic provides the most advanced simulation technology and provides extensive simulation capabilities. Its advanced analysis features include transient noise, DC mismatch, sensitivity, aging analysis, library encryption and licensing capabilities, optimization, distributed computing, multi-threading, RC reduction, pole-zero, enhanced Monte-Carlo analysis, S-parameters, S-domain and Z-domain generalized transfer functions.

Eldo Classic’s extensive device model libraries include all the latest transistor models such as BSIM, PSP or HiSIM. It is the simulator of choice for CPU-intensive applications such as digital cell characterization. Eldo Classic’s capabilities can be further extended with VerilogA analog behavioral modeling, advanced RF analysis with Eldo RF, or mixed signal with Questa ADMS RF. Eldo Classic’s and its options are completely integrated into the Analog Design Environment from Cadence and in Mentor Graphics IC Flow.

Features and Benefits

Seamless Integration

Eldo Classic seamlessly integrates with Mentor’s highest performing large, transient simulation solution, Eldo Premier – which on average, enables 2.5X performance speed up over traditional SPICE.

  • Foundation for top-down methodology with Analog & Mixed-Signal HDL languages and RFIC simulation
  • Eldo models available for DSM foundry processes (TSMC, UMC, Chartered, ST, AMS, etc.)

Superior Cell Characterization

  • Foundry certified accuracy
  • Exceptional performance, capacity and convergence
  • Wide-range of I/O compatibility
  • HSPICE and Spectre I/O
  • Convenient speed/accuracy compromise
  • Complete Cell Characterization features
    • Eliminate software reload
    • Robust post-processing
    • Multiprocessor for parallelism
    • Sensitivity and DC mismatch
    • Monte Carlo analysis
    • Circuit Optimization including bisection and secant methods

Accuracy

For 25 years, Eldo has been used to verify and successfully fabricate thousands of ICs, from the most modest ones to huge mixed-signal SoCs, in all domains of applications, from defense to communications to automotive, and on all continents. For designers, Eldo is the absolute, golden, sign-off reference.

Capacity

Designers worldwide use Eldo on designs ranging from a single cell to systems of 300,000 transistors or more. Compared to most SPICE tools, Eldo exhibits a much more linear growth of CPU time with the size of the circuit. The raw maximum capacity of Eldo is limited only by the amount of available RAM.

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