* MAX4489 MACROMODEL * ------------------------------ * Revision 1, 6/2008 * ------------------------------ * The MAX4489 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 = VSS * 5 = INB+ * 6 = INB- * 7 = OUTB * 8 = VDD **************** .subckt MAX4489 1 2 3 4 5 6 7 8 Xamp1 8 4 3 2 1 MAX4489_AMP Xamp2 8 4 5 6 7 MAX4489_AMP .ends MAX4489 **************** **************** .subckt MAX4489_AMP VDD VSS IN+ IN- OUT E_MAX4489_EH MAX4489_N10145575 VSS VINT MAX4489_N101463451 1E5 D_MAX4489_D3 MAX4489_VGBW MAX4489_N10146247 diodemacro_ideal R_MAX4489_Rcm VSS MAX4489_N10146805 1Meg D_MAX4489_Ds1 MAX4489_VO MAX4489_N10149003 diodemacro_ideal R_MAX4489_Rc2 MAX4489_N10146533 VINT 1k V_MAX4489_Voff MAX4489_N10146273 IN- -0.067mVdc I_MAX4489_Ib- IN- VSS DC 0.5pA D_MAX4489_D4 MAX4489_N10146141 MAX4489_VGBW diodemacro_ideal L_MAX4489_Lcm MAX4489_N10147525 VSS 0.0143239pH R_MAX4489_Ri+ MAX4489_VCM IN+ 500G X_MAX4489_Hs2 MAX4489_N101458490 MAX4489_VO MAX4489_N10148957 + MAX4489_N10145951 MAX4489_MAX4489_Hs2 V_MAX4489_VH MAX4489_N101463451 VSS 5.5Vdc D_MAX4489_Dst MAX4489_N10146489 MAX4489_N10147475 diodemacro_ideal C_MAX4489_Cst VSS MAX4489_N10146489 1n D_MAX4489_Ds2 MAX4489_N10148957 MAX4489_VO diodemacro_ideal G_MAX4489_Gcm1 MAX4489_N10145769 VSS MAX4489_N10146805 VSS -1.778279E-6 R_MAX4489_Rps2 VSS MAX4489_N10145721 1 I_MAX4489_Ib+ IN+ VSS DC 1.5pA X_MAX4489_M1 MAX4489_VO MAX4489_N10146847 VSS VSS nmosmacro_str G_MAX4489_Gcm2 MAX4489_VM VSS MAX4489_N10145769 VSS -1 I_MAX4489_Iq VDD VSS DC 1.75mA C_MAX4489_Cpm VSS MAX4489_N10147435 668.17406p D_MAX4489_D5 MAX4489_VSH MAX4489_N10146953 diodemacro_ideal L_MAX4489_Lps MAX4489_N10145721 VSS 0.4mH E_MAX4489_EicH MAX4489_N10146847 VSS MAX4489_VCM MAX4489_N101469231 1E8 E_MAX4489_Est1 MAX4489_N10147475 VSS VDD VSS 1 G_MAX4489_Gps1 MAX4489_N10146521 VSS VINT VSS -25E-3 D_MAX4489_D6 MAX4489_N10146887 MAX4489_VSH diodemacro_ideal X_MAX4489_M4 MAX4489_VO MAX4489_N10145575 VSS VSS nmosmacro_str G_MAX4489_GQ VDD VSS VINT VSS 1.5E-4 V_MAX4489_VicH MAX4489_N101469231 VINT -1.6V V_MAX4489_VL MAX4489_N101462991 VSS 2.7Vdc V_MAX4489_Vs2 MAX4489_N10145951 VSS 6.203442mV R_MAX4489_Ro VSS MAX4489_VO 1.284187k R_MAX4489_Rpm VSS MAX4489_N10147435 1 E_MAX4489_Est2 VINT VSS MAX4489_N10146489 VSS 1 I_MAX4489_Isr MAX4489_N10146247 MAX4489_N10146141 DC 37.89403mA X_MAX4489_M2 MAX4489_VO MAX4489_N10146801 VSS VSS nmosmacro_str G_MAX4489_Gst MAX4489_N10146489 VSS VDD VSS -7.692308E-5 D_MAX4489_D7 MAX4489_N10147989 MAX4489_N10146953 diodemacro_ideal X_MAX4489_M5 MAX4489_N10146767 MAX4489_N10146273 MAX4489_N10147673 + MAX4489_N10147673 nmosmacro_th G_MAX4489_Gg MAX4489_VM VSS MAX4489_N10146767 MAX4489_N10146533 -0.5 R_MAX4489_Rcm1 MAX4489_N10147525 MAX4489_N10145769 1 D_MAX4489_D8 MAX4489_N10146887 MAX4489_N10147989 diodemacro_ideal G_MAX4489_Go MAX4489_VO VSS MAX4489_N10147435 VSS -7.787031E-4 R_MAX4489_Rg VSS MAX4489_VM 1.128419Meg G_MAX4489_Gps2 MAX4489_VM VSS MAX4489_N10146521 VSS -1 E_MAX4489_EicL MAX4489_N10146801 VSS MAX4489_VCM MAX4489_N101467551 + -5E6 X_MAX4489_M6 MAX4489_N10146533 IN+ MAX4489_N10147673 MAX4489_N10147673 + nmosmacro_th R_MAX4489_Rps1 MAX4489_N10145721 MAX4489_N10146521 40u G_MAX4489_Gpm MAX4489_N10147435 VSS MAX4489_VGBW VSS -1 V_MAX4489_VicL MAX4489_N101467551 VSS -0.2Vdc C_MAX4489_Cgbw VSS MAX4489_VGBW 3.789403n E_MAX4489_EL MAX4489_N10145559 VSS VINT MAX4489_N101462991 -1E5 I_MAX4489_I1 MAX4489_N10147673 VSS DC 200uA V_MAX4489_Vs1 MAX4489_N101458230 MAX4489_N10149003 5.075808mV D_MAX4489_D1 MAX4489_VM MAX4489_N10146247 diodemacro_ideal R_MAX4489_Ri- IN- MAX4489_VCM 500G R_MAX4489_Rcm2 VSS MAX4489_N10147525 9 X_MAX4489_M3 MAX4489_VO MAX4489_N10145559 VSS VSS nmosmacro_str E_MAX4489_Ecm MAX4489_N101456130 VSS MAX4489_VCM VSS 1 D_MAX4489_D2 MAX4489_N10146141 MAX4489_VM diodemacro_ideal X_MAX4489_Hs1 MAX4489_N101458490 MAX4489_VSH VINT MAX4489_N101458230 + MAX4489_MAX4489_Hs1 R_MAX4489_Rc1 MAX4489_N10146767 VINT 1k X_MAX4489_FLq MAX4489_N10147989 OUT VSS VDD MAX4489_MAX4489_FLq C_MAX4489_Ccm MAX4489_N101456130 MAX4489_N10146805 16m I_MAX4489_I2 MAX4489_N10146953 MAX4489_N10146887 DC 48mA ****************** .model diodemacro_ideal d(n=0.001) .ends MAX4489_AMP ****************** .subckt MAX4489_MAX4489_Hs2 1 2 3 4 H_MAX4489_Hs2 3 4 VH_MAX4489_Hs2 15.24722 VH_MAX4489_Hs2 1 2 0V .ends MAX4489_MAX4489_Hs2 .subckt MAX4489_MAX4489_Hs1 1 2 3 4 H_MAX4489_Hs1 3 4 VH_MAX4489_Hs1 19.77587 VH_MAX4489_Hs1 1 2 0V .ends MAX4489_MAX4489_Hs1 .subckt MAX4489_MAX4489_FLq 1 2 3 4 F_MAX4489_FLq 3 4 VF_MAX4489_FLq -1 VF_MAX4489_FLq 1 2 0V .ends MAX4489_MAX4489_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.