* MAX4128 MACROMODEL * ------------------------------ * Revision 0, 1/2008 * ------------------------------ * MAX4128 is an OpAmp of wide bandwidth & excellent DC accuracy with Rail-to-Rail operation at the inputs & outputs. * ------------------------------ * Connections * 1 = OUT1 * 2 = IN1- * 3 = IN1+ * 4 = Vee * 5 = IN2+ * 6 = IN2- * 7 = OUT2 * 8 = Vcc **************** .subckt MAX4128 1 2 3 4 5 6 7 8 Xamp1 8 4 3 2 1 MAX4128_AMP Xamp2 8 4 5 6 7 MAX4128_AMP .ends MAX4128 **************** .subckt MAX4128_AMP VCC VEE IN+ IN- OUT R_MAX4128_Rc3 VEE MAX4128_N9752755 1 V_MAX4128_Vic2 MAX4128_N97544611 VDD 0.25Vdc C_MAX4128_Cdd VEE MAX4128_N9752795 1n L_MAX4128_Lps MAX4128_N9753297 VEE 15.915mH G_MAX4128_Gcm1 MAX4128_VM VEE MAX4128_N9753209 VEE -50.1187E-6 D_MAX4128_D9 MAX4128_N9752795 MAX4128_N9755113 diodemacro_ideal I_MAX4128_Ib+ IN+ VEE DC 50.5nAdc G_MAX4128_GQ VCC VEE VDD VEE 32.61u G_MAX4128_Gps1 MAX4128_N9752963 VEE MAX4128_N9754047 VEE -10E-6 G_MAX4128_Gps2 MAX4128_VM VEE MAX4128_N9752963 VEE -1 D_MAX4128_D7 MAX4128_N9752763 MAX4128_N9754491 diodemacro_ideal X_MAX4128_M5 MAX4128_VRO MAX4128_N9753137 VEE VEE nmosmacro E_MAX4128_Eic1 MAX4128_N9754361 VEE MAX4128_N9752987 MAX4128_N97542791 + -1E5 V_MAX4128_Vs2 MAX4128_N9753531 VEE 24.5855mVdc D_MAX4128_D8 MAX4128_N9754425 MAX4128_N9752763 diodemacro_ideal R_MAX4128_Rps1 MAX4128_N9753297 MAX4128_N9752963 1 G_MAX4128_G2 MAX4128_N9752795 VEE VCC VEE -1E-3 E_MAX4128_E5 MAX4128_N9755113 VEE VCC VEE 1 C_MAX4128_Cps VDD MAX4128_N9754047 16m X_MAX4128_M6 MAX4128_VRO MAX4128_N9754361 VEE VEE nmosmacro_str V_MAX4128_VL MAX4128_N97538991 VEE 2.7Vdc G_MAX4128_G1 MAX4128_VM VEE IN+ MAX4128_N9752739 -1 I_MAX4128_Isr MAX4128_N9753845 MAX4128_N9753721 DC 67.2mAdc X_MAX4128_M4 MAX4128_VRO MAX4128_N9753121 VEE VEE nmosmacro R_MAX4128_Rps VEE MAX4128_N9754047 1k G_MAX4128_Go MAX4128_VRO VEE MAX4128_N9752755 VEE -334.2827E-6 R_MAX4128_RG VEE MAX4128_VM 205495.98 I_MAX4128_Ish MAX4128_N9754491 MAX4128_N9754425 DC 50mAdc C_MAX4128_Cgbw VEE MAX4128_VGBW 6.366n R_MAX4128_Ri- IN- MAX4128_N9752987 250k V_MAX4128_Vs1 MAX4128_N97533970 MAX4128_N9752921 14.256mVdc D_MAX4128_D1 MAX4128_VM MAX4128_N9753845 diodemacro_ideal V_MAX4128_Vic3 MAX4128_N97542791 VEE -0.25Vdc I_MAX4128_Ib- IN- VEE DC 49.5nAdc G_MAX4128_Gpm MAX4128_N9752755 VEE MAX4128_VGBW VEE -1 E_MAX4128_EL MAX4128_N9753121 VEE VDD MAX4128_N97538991 -1E5 D_MAX4128_Ds1 MAX4128_VRO MAX4128_N9752921 diodemacro_ideal C_MAX4128_Ccm MAX4128_N9752789 MAX4128_N9753209 16m X_MAX4128_Hs1 MAX4128_N9753481 MAX4128_VSH VDD MAX4128_N97533970 + MAX4128_MAX4128_Hs1 D_MAX4128_D2 MAX4128_N9753721 MAX4128_VM diodemacro_ideal R_MAX4128_Ri+ MAX4128_N9752987 IN+ 250k R_MAX4128_Rcm VEE MAX4128_N9753209 1Meg V_MAX4128_VH MAX4128_N97539451 VEE 6.5Vdc E_MAX4128_E3 MAX4128_N9752789 VEE MAX4128_N9752987 VEE 1 D_MAX4128_D3 MAX4128_VGBW MAX4128_N9753845 diodemacro_ideal D_MAX4128_Ds2 MAX4128_N9752867 MAX4128_VRO diodemacro_ideal C_MAX4128_C2 VEE MAX4128_N9752755 36.755n E_MAX4128_EH MAX4128_N9753137 VEE VDD MAX4128_N97539451 1E5 D_MAX4128_D4 MAX4128_N9753721 MAX4128_VGBW diodemacro_ideal X_MAX4128_Hs2 MAX4128_N9753481 MAX4128_VRO MAX4128_N9752867 MAX4128_N9753531 + MAX4128_MAX4128_Hs2 D_MAX4128_D5 MAX4128_VSH MAX4128_N9754491 diodemacro_ideal I_MAX4128_Iq VCC VEE DC 561.96uAdc X_MAX4128_F1 MAX4128_N9752763 OUT VEE VCC MAX4128_MAX4128_F1 D_MAX4128_D6 MAX4128_N9754425 MAX4128_VSH diodemacro_ideal V_MAX4128_Voff MAX4128_N9752739 IN- -0.40mVdc R_MAX4128_Rps2 VEE MAX4128_N9753297 1E6 E_MAX4128_Eic2 MAX4128_N9754397 VEE MAX4128_N9752987 MAX4128_N97544611 + 1E5 E_MAX4128_E4 VDD VEE MAX4128_N9752795 VEE 1 X_MAX4128_M3 MAX4128_VRO MAX4128_N9754397 VEE VEE nmosmacro_str R_MAX4128_Ro VEE MAX4128_VRO 2991.48 ****************** .model diodemacro_ideal d(n=0.001) .ends MAX4128_AMP ****************** .subckt MAX4128_MAX4128_Hs1 1 2 3 4 H_MAX4128_Hs1 3 4 VH_MAX4128_Hs1 29.9261 VH_MAX4128_Hs1 1 2 0V .ends MAX4128_MAX4128_Hs1 .subckt MAX4128_MAX4128_Hs2 1 2 3 4 H_MAX4128_Hs2 3 4 VH_MAX4128_Hs2 16.7473 VH_MAX4128_Hs2 1 2 0V .ends MAX4128_MAX4128_Hs2 .subckt MAX4128_MAX4128_F1 1 2 3 4 F_MAX4128_F1 3 4 VF_MAX4128_F1 -1 VF_MAX4128_F1 1 2 0V .ends MAX4128_MAX4128_F1 ****************** .subckt nmosmacro d g s b m1 d g s b nmos .model nmos nmos(VTO=0.5 KP=100E-6 w=2u l=1u) .ends *********** .subckt nmosmacro_str d g s b m1 d g s b nmos .model nmos nmos(VTO=0.5 KP=100E-6 w=20u l=1u) .ends ****************** *Note: ** Macro model is developed using the typical device parameters given in the data sheet with 5 volts power supply. Model does not take care of the device non-linearity with temperature variations. Model characteristics may not match actual device behavior at abnormal operating conditions. **Parameters which are not modeled: *1. Gain Margin *2. Total Harmonic Distortion, Noise parameters *3. Input capacitance * Copyright (c) 2003-2012 Maxim Integrated Products. All Rights Reserved.