39 lines
634 B
Plaintext
39 lines
634 B
Plaintext
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compare a m=2 resistor with two parallel instances
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* The expectation is identical inoise and onoise
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* (exec-spice "ngspice %s" t)
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.temp 25
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i1 1 0 dc 10ma ac=1
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r1 1 0 100 rmodel l=1u w=10u m=2
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i2 2 0 dc 10mA ac=1
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r2a 2 0 100 rmodel l=1u w=10u
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r2b 2 0 100 rmodel l=1u w=10u
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.model rmodel r kf=100e-18 af=1.1
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+ dlr=0.01u dw=0.01u
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.control
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noise v(1) i1 dec 5 1k 100k
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print all
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noise v(2) i2 dec 5 1k 100k
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print all
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let relerr = noise4.onoise_total / noise2.onoise_total - 1
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echo "Note: relative relerr = $&relerr"
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if abs(relerr) > 1e-6
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echo "ERROR: test failed"
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quit 1
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else
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echo "INFO: success"
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quit 0
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end
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.endc
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.end
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