SpiceRack
Build SPICE circuits in Python, run them on the simulator you have, and get the results back as Python lists. One circuit description emits ngspice, LTspice, VACASK, Spectre, ESPice and HSPICE decks, and about 60 ready-made testbenches measure amplifiers, regulators, converters and PLLs for you.
pip install fast-spicerack # imported as `spicerack`
You also need a simulator to run anything; ngspice is the default. Without one, SpiceRack still writes netlists.
import spicerack as ps
dut = ps.Subcircuit("divider", ["vin", "vout"])
dut.R("top", "vin", "vout", 2e3)
dut.R("bot", "vout", dut.gnd, 1e3)
tb = ps.Testbench(dut)
tb.V("supply", "vin", "0", 9.0)
print(tb.netlist("vacask")) # the deck for any simulator
print(tb.operating_point()["vout"]) # 3.0, run on ngspice
A ready-made bench measures a whole spec at once:
from spicerack.testbenches import step_response
rc = ps.Subcircuit("rc", ["vin", "vout"])
rc.R("1", "vin", "vout", 1e3)
rc.C("1", "vout", rc.gnd, 100e-12)
print(step_response(ps, rc, period=4e-6).measure()["settle_rise_0p1pct_s"])
Documentation
openfat.github.io/SpiceRack, also readable here in docs/:
| Page | Covers |
|---|---|
| Circuits | building circuits: elements, sources, units, models, hierarchy, JSON |
| Simulating | analyses, results, simulator settings, choosing a backend, linting |
| Models and PDKs | model libraries and corners, Verilog-A, digital Verilog |
| Testbenches | the bench catalog, corners and Monte Carlo, spec checks |
| Re-measuring | SNDR, settling, margins, noise and yield recomputed from .raw files |
| Tools | the spice2rack converter, the Rust crate, the JSON format |
| API reference | every class and signature |
examples/ has 22 runnable scripts.
Development
nix develop .#testing # Rust, maturin, ngspice, OpenVAF, VACASK, PDKs
maturin develop && python3 -m pytest && cargo test
Pre-1.0: pin a version, as the API can change between minor releases. MIT licensed, see LICENSE.
1 maintainer
Metadata
1 maintainer
Release files for fast-spicerack 0.1.1
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