Trace Calculator for OrCAD Users
Cadence OrCAD & Allegro | No Sigrity Required
Cadence OrCAD is a powerful professional EDA tool, but detailed signal integrity calculations often require expensive Sigrity add-ons. Our free calculator provides trace width, via current, and impedance calculations without the extra cost.
OrCAD vs TraceWidthCalculator
| Feature | OrCAD / Sigrity | TraceWidthCalculator |
|---|---|---|
| Trace Width Calculator | Via Constraint Manager | Free, instant |
| Via Current Calculator | Sigrity (extra cost) | Free, built-in |
| Impedance Calculator | Sigrity PowerSI | Free, IPC-2141 |
| Differential Impedance | Sigrity required | Free, built-in |
| Quick Calculations | Complex workflow | Instant results |
| Cost | $3,000+ for Sigrity | Free |
When to Use Our Calculator with OrCAD
Without Sigrity License
Many OrCAD users don't have Sigrity licenses. Our calculator provides essential SI calculations without the additional cost—perfect for basic to intermediate designs.
Quick Estimates
Even with Sigrity, setting up analysis can be time-consuming. Use our calculator for quick sanity checks and initial estimates before detailed simulations.
Mobile Access
OrCAD requires a workstation. Access trace calculations from your phone during meetings, design reviews, or when away from your desk.
About Cadence OrCAD
OrCAD is a professional PCB design suite from Cadence Design Systems, widely used in enterprise environments for complex, high-reliability designs. It includes OrCAD Capture for schematics and OrCAD PCB Designer (formerly Allegro) for layout.
For advanced signal integrity analysis, Cadence offers Sigrity tools (PowerSI, PowerDC, etc.) as additional products. These are powerful but come with significant licensing costs.
TraceWidthCalculator provides a free alternative for basic trace width and impedance calculations, complementing OrCAD without replacing its advanced simulation capabilities.
Cadence Product Stack
TraceWidthCalculator Provides
Complement Your OrCAD Workflow
Free IPC-2221 calculations without Sigrity licensing costs. Professional results for trace width, via current, and impedance.
Frequently Asked Questions
Can this replace Sigrity?
For basic calculations, yes. For advanced SI simulation (S-parameters, crosstalk analysis), Sigrity remains more capable. Our tool is great for quick estimates and designs that don't need full simulation.
Do results match OrCAD/Sigrity?
Both use industry-standard formulas (IPC-2221, Hammerstad). Results should be very close for equivalent inputs.
How do I apply results in OrCAD?
Set calculated trace widths in OrCAD's Constraint Manager. For impedance-controlled nets, define the appropriate routing rules.
Is this affiliated with Cadence?
No. TraceWidthCalculator is an independent, free tool. OrCAD, Sigrity, and Allegro are trademarks of Cadence Design Systems.
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