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Koala Microillustrator  |  1989-12-29  |  31.3 KB  |  640x400  |  1-bit (2 colors)
   ocr: Example EX2.CIR 1K 0.5UF This sample shows an active high pass Fiiter. The op-amp has an input impedance of 10K, I Vout an output impedance of 10 ohm, and a voltage SOUF gain of 105 Vin 1K Use -1.33 for a tregency increment. The figure in the centre shows a simple model for the op-amp. Cearly, Vout is Rout*gm (U+-U-) 9M(V+-V-) Thus if the voltage gain is 105 and Rout is 10 ohm, gm must be 10: Vout Rin 4 Rout CIRCUIT DESURIPTIUN 1 IS 0 1 TO 1 1 AMPS U+ - 0 D DEG 2C 1 TO 4 5E-7 F 1K 3R 4 TO 0 1000 OHM 1 0.5UF 2 4R 4 - TO 3 10000 OHM I 5R 3 - TO 0 1000 OHM - 3 SOUF 7 6R C 3 2 - TO TO - 2 0 1000 5 ...