121 lines
3.8 KiB
Python
121 lines
3.8 KiB
Python
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from SPICE import *
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circuit = Circuit()
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circuit.title = '* Single-ended two-stage amplifier'
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# PARAMS
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circuit.addParameter("CC_VALUE", "2.8794pF");
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circuit.addParameter("L_VALUE" , "0.340e-6");
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# SUBCKTS
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# CurrentMirror
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CM = circuit.addSubckt("currentMirrorPMOS");
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CM.addInterface("d1");
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CM.addInterface("d2");
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CM.addInterface("s1");
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CM.addInterface("s2");
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CM.addParameter("l_val" , "0.0" );
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CM.addParameter("w_val" , "0.0" );
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CM.addParameter("nf_val" , "1" );
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CM.addParameter("aeq_val" , "100e-6");
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CM.addParameter("temp_val", "27" );
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cmP3 = Mosfet("P3", "d1", "d1", "s1", "s1", "psvt");
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cmP3.addParameter("l" , "l_val" );
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cmP3.addParameter("wf" , "{w_val/nf_val}");
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cmP3.addParameter("nf" , "nf_val" );
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cmP3.addParameter("aeq" , "aeq_val" );
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cmP3.addParameter("tempsimu", "temp_val" );
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CM.addInstance(cmP3);
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cmP4 = Mosfet("P4", "d2", "d1", "s2", "s2", "psvt");
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cmP4.addParameter("l" , "l_val" );
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cmP4.addParameter("wf" , "{w_val/nf_val}");
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cmP4.addParameter("nf" , "nf_val" );
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cmP4.addParameter("aeq" , "aeq_val" );
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cmP4.addParameter("tempsimu", "temp_val" );
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CM.addInstance(cmP4);
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# DifferentialPair
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DP = circuit.addSubckt("diffPairNMOS");
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DP.addInterface("d1");
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DP.addInterface("d2");
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DP.addInterface("g1");
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DP.addInterface("g2");
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DP.addInterface("s");
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DP.addInterface("b");
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DP.addParameter("l_val" , "0.0" );
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DP.addParameter("w_val" , "0.0" );
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DP.addParameter("nf_val" , "1" );
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DP.addParameter("aeq_val" , "100e-6");
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DP.addParameter("temp_val", "27" );
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dpN1 = Mosfet("N1", "d1", "g1", "s", "b", "nsvt");
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dpN1.addParameter("l" , "l_val" );
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dpN1.addParameter("wf" , "{w_val/nf_val}");
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dpN1.addParameter("nf" , "nf_val" );
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dpN1.addParameter("aeq" , "aeq_val" );
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dpN1.addParameter("tempsimu", "temp_val" );
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DP.addInstance(dpN1);
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dpN2 = Mosfet("N2", "d2", "g2", "s", "b", "nsvt");
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dpN2.addParameter("l" , "l_val" );
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dpN2.addParameter("wf" , "{w_val/nf_val}");
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dpN2.addParameter("nf" , "nf_val" );
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dpN2.addParameter("aeq" , "aeq_val" );
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dpN2.addParameter("tempsimu", "temp_val" );
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DP.addInstance(dpN2);
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# INSTANCES
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iCM = Instance("CM", "currentMirrorPMOS");
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iCM.addConnector("1");
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iCM.addConnector("2");
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iCM.addConnector("vdd");
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iCM.addConnector("vdd");
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iCM.addParameter("l_val" , "L_VALUE" );
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iCM.addParameter("w_val" , "3.889618e-06");
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iCM.addParameter("nf_val", "2" );
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circuit.addInstance(iCM);
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iDP = Instance("DP", "diffPairNMOS");
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iDP.addConnector("1");
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iDP.addConnector("2");
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iDP.addConnector("vim");
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iDP.addConnector("vip");
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iDP.addConnector("3");
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iDP.addConnector("vss");
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iDP.addParameter("l_val" , "L_VALUE" );
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iDP.addParameter("w_val" , "7.683346e-07");
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iDP.addParameter("nf_val", "4" );
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circuit.addInstance(iDP);
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iP6 = Mosfet("P6", "vout", "2", "vdd", "vdd", "psvt");
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iP6.addParameter("l_val" , "L_VALUE" );
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iP6.addParameter("w_val" , "3.558995e-05");
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iP6.addParameter("nf_val", "20" );
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circuit.addInstance(iP6);
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iN5 = Mosfet("N5", "3", "4", "vss", "vss", "nsvt");
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iN5.addParameter("l_val" , "L_VALUE" );
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iN5.addParameter("w_val" , "2.536703e-06");
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iN5.addParameter("nf_val", "4" );
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circuit.addInstance(iN5);
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iN7 = Mosfet("N7", "vout", "4", "vss", "vss", "nsvt");
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iN7.addParameter("l_val" , "L_VALUE" );
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iN7.addParameter("w_val" , "1.069083e-05");
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iN7.addParameter("nf_val", "16" );
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circuit.addInstance(iN7);
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iN8 = Mosfet("N8", "4", "4", "vss", "vss", "nsvt");
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iN8.addParameter("l_val" , "L_VALUE" );
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iN8.addParameter("w_val" , "2.536703e-06");
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iN8.addParameter("nf_val", "4" );
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circuit.addInstance(iN8);
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capa = Capacitor("C1", "vout", "2", "CC_VALUE")
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circuit.addInstance(capa);
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circuit.writeToFile("./myOTA.spi");
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