*----------------------------------------------------------------------- * OPA656 Wideband, Unity Gain Stable, FET-Input, VFB Op Amp * created 12/27/01 RS * Revision 1/16/02 RS Input saturation * Rev 6/12/02 RS Adj for Trimed offset & Output Drive Current * * NOTES: * 1- Uses a multiple pole-zero topology * 2- For better convergence during transient analysis set: * .OPTIONS ITL4=40 * 3- This macromodel predicts room temperature performance * (T = 27 deg C) for: DC, small-signal AC, noise, and * transient simulations * 4- This macromodel does not predict: distortion * (harmonic, intermod, diff. gain & phase, ...), * temperature effects, board parasitics, differences * between package styles, and process changes * 5- Revision to correct Pinch-off and input limiting. * * |---------------------------------------------------------------| * | This macro model is being supplied as an aid to | * | circuit designs. While it reflects reasonably close | * | similarity to the actual device in terms of performance, | * | it is not suggested as a replacement for breadboarding. | * | Simulation should be used as a forerunner or a supplement | * | to traditional lab testing. | * | | * | Neither this library nor any part may be copied without | * | the express written consent of Texas Instruments Corporation.| * |---------------------------------------------------------------| * * CONNECTIONS: * Non-Inverting Input * | Inverting Input * | | Positive Power Supply * | | | Negative Power Supply * | | | | Output * | | | | | .SUBCKT OPA656 p n Vp Vn Out C_C4 Vn 0 1P C_C2 0 Vp 1P R_R40 16 0 1MEG G_G40 0 16 POLY(1) 15 0 0 1U 0 0 V_V12 14 Vn DC 4.54 R_R51 Vn 23 9.0 R_R50 19 Vp 5 R_R30 15 0 87.92K D_D32 18 16 DX 1 D_D31 16 17 DX 1 C_C6 Out 0 1P D_D12 14 12 DX 1 R_R10 10 Vp 750 R_R11 11 Vp 750 Q_Q1 Vp 20 Out NPN8 8 Q_Q2 Vn 22 Out PNP8 8 Q_Q4 21 21 20 PNP8 .5 Q_Q3 21 21 22 NPN8 .5 C_C30 0 15 10.54P C_C40 16 0 0.079f E_E50 19 20 POLY(2) 0 16 Vp Vn -815M 1 0.5 E_E51 22 23 POLY(2) 16 0 Vp Vn -815M 1 0.5 E_E31 17 0 POLY(1) Vp Vn -1.7 0.5 0 0 E_E32 18 0 POLY(1) Vn Vp 1.7 0.5 0 0 I_I12 12 Vn DC 9.8M G_G1 0 15 POLY(1) 11 10 0 25.225M 0 0 J_J10 10 p 12 JX .5 L_L2 2 n 3.96nH J_J11 11 2 12 JX .50001505 .ENDS OPA656 * .MODEL DN1 D( IS=.1F AF=1.0 KF=49.0E-17) .MODEL DX D( IS=1.0000E-15) * .MODEL NPN8 NPN + IS = 7.604E-18 BF = 1.570E+02 NF = 1.000E+00 VAF= 7.871E+01 + IKF= 3.975E-02 ISE= 3.219E-14 NE = 2.000E+00 BR = 7.614E-01 + NR = 1.000E+00 VAR= 1.452E+00 IKR= 8.172E-02 ISC= 7.618E-21 + NC = 1.847E+00 RB = 1.060E+02 IRB= 0.000E+00 RBM= 2.400E+00 + RE = 2.520E+00 RC = 1.270E+02 CJE= 1.120E-13 VJE= 7.591E-01 + MJE= 5.406E-01 TF = 1.213E-11 XTF= 2.049E+00 VTF= 1.813E+00 + ITF= 4.293E-02 PTF= 0.000E+00 CJC= 8.208E-14 VJC= 6.666E-01 + MJC= 4.509E-01 XCJC=8.450E-02 TR = 4.000E-11 CJS= 1.160E-13 + VJS= 5.286E-01 MJS= 4.389E-01 XTB= 1.022E+00 EG = 1.120E+00 + XTI= 1.780E+00 KF = 3.500E-16 AF = 1.000E+00 FC = 8.273E-01 * .MODEL PNP8 PNP + IS = 7.999E-18 BF = 1.418E+02 NF = 1.000E+00 VAF= 4.158E+01 + IKF= 1.085E-01 ISE= 2.233E-15 NE = 1.505E+00 BR = 3.252E+01 + NR = 1.050E+00 VAR= 1.093E+00 IKR= 5.000E-05 ISC= 6.621E-16 + NC = 1.150E+00 RB = 6.246E+01 IRB= 0.000E+00 RBM= 2.240E+00 + RE = 2.537E+00 RC = 1.260E+02 CJE= 9.502E-14 VJE= 7.320E-01 + MJE= 4.930E-01 TF = 1.303E-11 XTF= 3.500E+01 VTF= 3.259E+00 + ITF= 2.639E-01 PTF= 0.000E+00 CJC= 1.080E-13 VJC= 7.743E-01 + MJC= 5.000E-01 XCJC=8.504E-02 TR = 1.500E-10 CJS= 1.290E-13 + VJS= 9.058E-01 MJS= 4.931E-01 XTB= 1.732E+00 EG = 1.120E+00 + XTI= 2.000E+00 KF = 3.500E-16 AF = 1.000E+00 FC = 8.500E-01 * .MODEL JX NJF(BETA=2.78E-3 LAMBDA=28.67E-6 IS=5.956E-15 +ALPHA=2.7155 VK=1 RD=13.3 RS=13.299 CGD=1.032E-12 CGS=2.823E-12 +AF=1 KF=21.75E-18 BETATCE=-1.994 VTOTC=-2.5000E-3)