Basic opamp model to use with ltspice using the schematic option.
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* OPAMP MACRO MODEL, SINGLE-POLE
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* connections: non-inverting input
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* | inverting input
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* | | output
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* | | |
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.SUBCKT newOpamp 1 2 3
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* INPUT IMPEDANCE
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RIN 1 2 10MEG
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* DC GAIN (100K) AND POLE 1 (10HZ)
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EGAIN 3 0 1 2 100K
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RP1 3 4 1K
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CP1 4 0 15.915UF
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* OUTPUT BUFFER AND RESISTANCE
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EBUFFER 5 0 4 0 1
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ROUT 5 6 10
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.ENDS
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