What this IBIS inspector checks
The page inventories the required file headers, components, package R/L/C values, pin identities and model references, buffer models, model types, C_comp, ramp slopes, IV tables, and rising or falling waveform tables. It reports duplicate names and pins, unknown model references, malformed engineering numbers, inconsistent table widths, invalid points, duplicate or nonascending independent values, and conspicuously oscillating IV data.
Curve and corner handling
IBIS engineering suffixes such as k, m, u, n, p, and f are converted for comparison and plotting while the original text remains visible in the CSV report. Typical, minimum, and maximum columns are kept separate. A curve preview uses only finite typical values; missing N/A corners are not invented. The viewer does not interpolate, extrapolate, clamp, or rewrite a vendor model.
Why use a preflight before simulation?
A quick inventory can reveal a pin mapped to a missing model, a duplicated coordinate, a damaged numeric token, or a truncated table without configuring an EDA suite. It is also useful when comparing what a vendor file contains with a device datasheet. Passing these bounded checks says only that the inspected structures are coherent enough to review further.
Conformance and electrical boundary
This page is not the IBIS Golden Parser and is not a signal-integrity simulator. It implements a deliberate subset for readable preflight and does not fully enforce version-specific keyword trees, package/board/interconnect models, IBIS-AMI, external files, every differential or series rule, waveform fixture consistency, IV endpoint requirements, monotonicity tolerances, or simulator behavior. Run the current official parser for formal syntax conformance, then correlate and simulate in the intended toolchain. A clean report is not proof that a model is accurate, safe, correlated, or suitable for a particular device or PCB.
Frequently asked questions
Does this support every IBIS version?
It recognizes the long-established device-model structures used across common .ibs files and reports the declared version. Newer and specialized keywords remain visible but may be marked as uninterpreted. Version-specific conformance belongs to the current official parser.
Why does a curve receive an ordering warning?
The independent voltage or time column is normally arranged in ascending order for inspection and interpolation. Repeated or descending coordinates can indicate a merge or edit problem, but the warning does not automatically prove the model unusable.
Are model files uploaded?
No. File decoding, parsing, plotting, copying, and CSV generation happen in the browser. External model or interconnect references are not fetched.
Can this fix or simulate the model?
No. Automatic repair could change electrical meaning, and simulation requires controller-specific interpretation, fixtures, interconnects, loads, and correlation. The tool remains read-only.
Authoritative IBIS references
The IBIS Open Forum publishes the current and historical IBIS specifications, explains the role of the Golden Parser in its FAQ, and distributes official and contributed tools. Use those sources for version-specific requirements and the current conformance checker.
Analyze a GNU ld map · Inspect an SVF file · Browse electronics tools