71 lines
1.4 KiB
Plaintext
71 lines
1.4 KiB
Plaintext
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* sw ring-oscillators
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.control
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destroy all
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run
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plot I(vmeasure)
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plot V(Osc_out)
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rusage
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.endc
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.ic v(osc_out)=0.25
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.tran 10n 80n 50p ;
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*.tran 100p 80n 50p uic ;for BSIM4
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.option method=gear maxord=3
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VDD VDD2 0 DC 3
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VMEASURE VDD2 VDD dc 0
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cvdd vdd 0 1e-18
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XX18 Osc_out N001 VDD 0 inverter
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XX2 N001 N002 VDD 0 inverter
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XX3 N002 N003 VDD 0 inverter
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XX4 N003 N004 VDD 0 inverter
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XX5 N004 N005 VDD 0 inverter
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XX6 N005 N006 VDD 0 inverter
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XX7 N006 N007 VDD 0 inverter
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XX8 N007 N008 VDD 0 inverter
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XX9 N008 N009 VDD 0 inverter
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XX10 N009 N010 VDD 0 inverter
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XX11 N010 N011 VDD 0 inverter
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XX12 N011 N012 VDD 0 inverter
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XX13 N012 N013 VDD 0 inverter
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XX14 N013 N014 VDD 0 inverter
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XX15 N014 N015 VDD 0 inverter
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XX16 N015 N016 VDD 0 inverter
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XX17 N016 Osc_out VDD 0 inverter
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* sw like an NMOS inverter with resistive load
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.subckt invertern In Out VDD DGND
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*sp out vdd in vdd swswitch on
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Rl out vdd 10k
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Cl out dgnd 0.1p
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*C2 out vdd 0.1p
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sn out dgnd in dgnd swswitch off
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.ends invertern
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* sw like a PMOS inverter with resistive load
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.subckt inverterp In Out VDD DGND
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sp out vdd vdd in swswitch
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Rl out 0 10k
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*Cl out dgnd 0.1p
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C2 out vdd 0.1p
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*sn out dgnd in dgnd swswitch off
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.ends inverterp
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* sw like a CMOS inverter
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.subckt inverter In Out VDD DGND
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sp out vdd vdd in swswitch
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*Rl out 0 10k
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Cl out dgnd 0.1p
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C2 out vdd 0.1p
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sn out dgnd in dgnd swswitch
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.ends inverter
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.model swswitch sw (vt=1 vh=0.1 ron=1k roff=1e12)
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.model switchn sw (vt=1 vh=0.1 ron=1k roff=1e12)
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.end
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