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OP497FP Datasheet(PDF) 10 Page - Analog Devices |
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OP497FP Datasheet(HTML) 10 Page - Analog Devices |
10 / 12 page REV. D OP497 –10– OP497 SPICE MACRO-MODEL Figure 12 and Table I show the node and net list for a SPICE macro-model of the OP497. The model is a simplified version of the actual device and simulates important dc parameters such as VOS, IOS, IB, AVO, CMR, VO, and ISY. AC parameters such as slew rate, gain and phase response, and CMR change with frequency are also simulated by the model. The model uses typical parameters for the OP497. The poles and zeros in the model were determined from the actual open and closed-loop gain and phase response of the OP497. In this way, the model presents an accurate ac representation of the actual device. The model assumes an ambient temperature of 25 °C. – + 99 20 21 23 24 25 26 22 R16 D9 G4 G5 D10 G7 L1 V4 V3 G6 D8 D7 D5 D6 27 50 ISY VO R18 R19 R17 G2 R10 CCM 98 ECM RCM1 RCM2 15 16 C5 19 CNZ ENZ RNZ1 RNZ2 17 18 G2 R15 20 C5 –IN +IN 8 9 7 2 1 CIN R1 R2 D1 D2 50 10 11 56 12 98 14 13 G1 C3 V2 C2 Q1 Q2 R6 R5 99 V1 EREF – + RIN2 EOS I1 RIN1 IOS R3 R4 D3 D4 R7 Figure 12. OP497 Macro Model |
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Similar Description - OP497FP |
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