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Linear Systems LSJ74 and LSK170 measured data for DIY spice model making
Linear Systems LSJ74 and LSK170 measured data for DIY spice model making
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Old 11th March 2018, 05:59 PM   #1
Mark Johnson is offline Mark Johnson  United States
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Linear Systems LSJ74 and LSK170 measured data for DIY spice model making
Default Linear Systems LSJ74 and LSK170 measured data for DIY spice model making

I found a couple of sample units that Linear Systems gave out at Burning Amp a few years ago, see photo below. Whether these are "Blue" or "Green" or "suffix-A" or "suffix-C" , I have no idea. All I know is that they are marked with an F on the package, perhaps denoting Free sample (?)

I put them on my curve tracer and got the plots shown below. For the convenience of SPICE model makers I've also attached the raw data files from the curve tracer, in its idiosyncratic CUV (curve) format, which resembles excel CSV format except using TABs instead of commas. The curve tracer rotates all plots into the first quadrant, even though PJFET curves exist, in reality, in the third quadrant. That's about all the Technical Support I can supply for the CUV format, hopefully having both the ASCII data and also the .PNG image of the curves, will help you decipher any mysteries of CUV format.

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Attached Images
File Type: jpg photograph.JPG (219.4 KB, 231 views)
File Type: png LSJ74_Unit1_IdVd_m0p5_0_step_0p1.PNG (38.7 KB, 234 views)
File Type: png LSJ74_Unit1_IdVg_10Vds.PNG (38.3 KB, 232 views)
File Type: png LSJ74_Unit2_IdVd_m0p5_0_step_0p1.PNG (41.0 KB, 228 views)
File Type: png LSJ74_Unit2_IdVg_10Vds.PNG (44.3 KB, 226 views)
File Type: png LSK170_Unit1_IdVd_m1p0_0_ste0_0p2.PNG (42.0 KB, 56 views)
File Type: png LSK170_Unit1_IdVg_10Vds.PNG (31.4 KB, 57 views)
File Type: png LSK170_Unit2_IdVd_m1p0_0_step_0p2.PNG (47.5 KB, 56 views)
File Type: png LSK170_Unit2_IdVg_10Vds.PNG (31.8 KB, 44 views)
Attached Files
File Type: zip LS_JFET_meas_data.zip (356.8 KB, 27 views)
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Old 11th March 2018, 06:00 PM   #2
Mark Johnson is offline Mark Johnson  United States
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Linear Systems LSJ74 and LSK170 measured data for DIY spice model making
And a silly little overlay showing both Fairchild J113 and Linear Systems LSK170 on the same graph


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Attached Images
File Type: png Compare_J113_vs_LSK170.PNG (50.6 KB, 115 views)
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