* MAX4478 MACROMODEL * ------------------------------ * Revision 1, 6/2008 * ------------------------------ * The MAX4478 Wide-band, low-noise, low-distortion operatinal amplifiers offer rail-rail outputs and single supply operation down to 2.7V. These devices are ideal for the applications that require low distrotion and low noise. * ------------------------------ * Connections * 1 = OUTA * 2 = INA- * 3 = INA+ * 4 = VDD * 5 = INB+ * 6 = INB- * 7 = OUTB * 8 = OUTC * 9 = INC- * 10 = INC+ * 11 = VSS * 12 = IND+ * 13 = IND- * 14 = OUTD **************** .subckt MAX4478 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Xamp1 4 11 3 2 1 MAX4478_AMP Xamp2 4 11 5 6 7 MAX4478_AMP Xamp3 4 11 10 9 8 MAX4478_AMP Xamp4 4 11 12 13 14 MAX4478_AMP .ends MAX4478 **************** **************** .subckt MAX4478_AMP VDD VSS IN+ IN- OUT E_MAX4478_EH MAX4478_N10145575 VSS VINT MAX4478_N101463451 1E5 D_MAX4478_D3 MAX4478_VGBW MAX4478_N10146247 diodemacro_ideal R_MAX4478_Rcm VSS MAX4478_N10146805 1Meg D_MAX4478_Ds1 MAX4478_VO MAX4478_N10149003 diodemacro_ideal R_MAX4478_Rc2 MAX4478_N10146533 VINT 1k V_MAX4478_Voff MAX4478_N10146273 IN- -0.067mVdc I_MAX4478_Ib- IN- VSS DC 0.5pA D_MAX4478_D4 MAX4478_N10146141 MAX4478_VGBW diodemacro_ideal L_MAX4478_Lcm MAX4478_N10147525 VSS 0.0143239pH R_MAX4478_Ri+ MAX4478_VCM IN+ 500G X_MAX4478_Hs2 MAX4478_N101458490 MAX4478_VO MAX4478_N10148957 + MAX4478_N10145951 MAX4478_MAX4478_Hs2 V_MAX4478_VH MAX4478_N101463451 VSS 5.5Vdc D_MAX4478_Dst MAX4478_N10146489 MAX4478_N10147475 diodemacro_ideal C_MAX4478_Cst VSS MAX4478_N10146489 1n D_MAX4478_Ds2 MAX4478_N10148957 MAX4478_VO diodemacro_ideal G_MAX4478_Gcm1 MAX4478_N10145769 VSS MAX4478_N10146805 VSS -1.778279E-6 R_MAX4478_Rps2 VSS MAX4478_N10145721 1 I_MAX4478_Ib+ IN+ VSS DC 1.5pA X_MAX4478_M1 MAX4478_VO MAX4478_N10146847 VSS VSS nmosmacro_str G_MAX4478_Gcm2 MAX4478_VM VSS MAX4478_N10145769 VSS -1 I_MAX4478_Iq VDD VSS DC 1.75mA C_MAX4478_Cpm VSS MAX4478_N10147435 5.792766n D_MAX4478_D5 MAX4478_VSH MAX4478_N10146953 diodemacro_ideal L_MAX4478_Lps MAX4478_N10145721 VSS 0.4mH E_MAX4478_EicH MAX4478_N10146847 VSS MAX4478_VCM MAX4478_N101469231 1E8 E_MAX4478_Est1 MAX4478_N10147475 VSS VDD VSS 1 G_MAX4478_Gps1 MAX4478_N10146521 VSS VINT VSS -25E-3 D_MAX4478_D6 MAX4478_N10146887 MAX4478_VSH diodemacro_ideal X_MAX4478_M4 MAX4478_VO MAX4478_N10145575 VSS VSS nmosmacro_str G_MAX4478_GQ VDD VSS VINT VSS 1.5E-4 V_MAX4478_VicH MAX4478_N101469231 VINT -1.6V V_MAX4478_VL MAX4478_N101462991 VSS 2.7Vdc V_MAX4478_Vs2 MAX4478_N10145951 VSS 6.203442mV R_MAX4478_Ro VSS MAX4478_VO 1.284187k R_MAX4478_Rpm VSS MAX4478_N10147435 1 E_MAX4478_Est2 VINT VSS MAX4478_N10146489 VSS 1 I_MAX4478_Isr MAX4478_N10146247 MAX4478_N10146141 DC 47.74648mA X_MAX4478_M2 MAX4478_VO MAX4478_N10146801 VSS VSS nmosmacro_str G_MAX4478_Gst MAX4478_N10146489 VSS VDD VSS -7.692308E-5 D_MAX4478_D7 MAX4478_N10147989 MAX4478_N10146953 diodemacro_ideal X_MAX4478_M5 MAX4478_N10146767 MAX4478_N10146273 MAX4478_N10147673 + MAX4478_N10147673 nmosmacro_th G_MAX4478_Gg MAX4478_VM VSS MAX4478_N10146767 MAX4478_N10146533 -0.5 R_MAX4478_Rcm1 MAX4478_N10147525 MAX4478_N10145769 1 D_MAX4478_D8 MAX4478_N10146887 MAX4478_N10147989 diodemacro_ideal G_MAX4478_Go MAX4478_VO VSS MAX4478_N10147435 VSS -7.787031E-4 R_MAX4478_Rg VSS MAX4478_VM 1.128419Meg G_MAX4478_Gps2 MAX4478_VM VSS MAX4478_N10146521 VSS -1 E_MAX4478_EicL MAX4478_N10146801 VSS MAX4478_VCM MAX4478_N101467551 + -5E6 X_MAX4478_M6 MAX4478_N10146533 IN+ MAX4478_N10147673 MAX4478_N10147673 + nmosmacro_th R_MAX4478_Rps1 MAX4478_N10145721 MAX4478_N10146521 40u G_MAX4478_Gpm MAX4478_N10147435 VSS MAX4478_VGBW VSS -1 V_MAX4478_VicL MAX4478_N101467551 VSS -0.2Vdc C_MAX4478_Cgbw VSS MAX4478_VGBW 15.91549n E_MAX4478_EL MAX4478_N10145559 VSS VINT MAX4478_N101462991 -1E5 I_MAX4478_I1 MAX4478_N10147673 VSS DC 200uA V_MAX4478_Vs1 MAX4478_N101458230 MAX4478_N10149003 5.075808mV D_MAX4478_D1 MAX4478_VM MAX4478_N10146247 diodemacro_ideal R_MAX4478_Ri- IN- MAX4478_VCM 500G R_MAX4478_Rcm2 VSS MAX4478_N10147525 9 X_MAX4478_M3 MAX4478_VO MAX4478_N10145559 VSS VSS nmosmacro_str E_MAX4478_Ecm MAX4478_N101456130 VSS MAX4478_VCM VSS 1 D_MAX4478_D2 MAX4478_N10146141 MAX4478_VM diodemacro_ideal X_MAX4478_Hs1 MAX4478_N101458490 MAX4478_VSH VINT MAX4478_N101458230 + MAX4478_MAX4478_Hs1 R_MAX4478_Rc1 MAX4478_N10146767 VINT 1k X_MAX4478_FLq MAX4478_N10147989 OUT VSS VDD MAX4478_MAX4478_FLq C_MAX4478_Ccm MAX4478_N101456130 MAX4478_N10146805 16m I_MAX4478_I2 MAX4478_N10146953 MAX4478_N10146887 DC 48mA ****************** .model diodemacro_ideal d(n=0.001) .ends MAX4478_AMP ****************** .subckt MAX4478_MAX4478_Hs2 1 2 3 4 H_MAX4478_Hs2 3 4 VH_MAX4478_Hs2 15.24722 VH_MAX4478_Hs2 1 2 0V .ends MAX4478_MAX4478_Hs2 .subckt MAX4478_MAX4478_Hs1 1 2 3 4 H_MAX4478_Hs1 3 4 VH_MAX4478_Hs1 19.77587 VH_MAX4478_Hs1 1 2 0V .ends MAX4478_MAX4478_Hs1 .subckt MAX4478_MAX4478_FLq 1 2 3 4 F_MAX4478_FLq 3 4 VF_MAX4478_FLq -1 VF_MAX4478_FLq 1 2 0V .ends MAX4478_MAX4478_FLq ****************** .subckt nmosmacro_th d g s b m1 d g s b nmos .model nmos nmos(VTO=0.5 KP=100E-6 w=200u l=1u KF=0.15E-27 AF=1) .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 *3. Input capacitance * Copyright (c) 2003-2012 Maxim Integrated Products. All Rights Reserved.