* MAX4108 FAMILY MACROMODELS * ------------------------- * FEATURES: * 400MHz -3dB Bandwidth * 20mA Typical Supply Current * 90mA Output Drive * 1200V/uS Slew Rate * Available in 8-Pin SO * * PART NUMBER DESCRIPTION * ___________ ___________________________________ * MAX4108 400MHz, Ultra-Low-Distortion Op Amp * * * ////////////// MAX4108 MACROMODEL ////////////////// * * ====> REFER TO MAX4108 DATA SHEET <==== * * connections: non-inverting input * | inverting input * | | positive power-supply * | | | negative power-supply * | | | | output * | | | | | * OUTPUT CONNECTS: 1 2 99 50 97 * * NOTE OFFSET HAS NOT BEEN ADDED TO THIS MODEL * .SUBCKT MAX4108 1 2 99 50 97 ****************INPUT STAGE********************** * IOS 2 1 50N I1 4 50 2MA GIN 2 1 2 1 50E-9 G1 5 99 5 99 38.5E-3 G2 6 99 6 99 38.5E-3 vos 1 3 0v *EOS 1 3 POLY(1) 98 30 0 .63 * ^ OFFSET VOLTAGE *****OFFSET VOLTAGE MUST BE 0V TO PERFORM SMALL-SIGNAL ANALYSIS***** Vn 3 9 0v *EN 3 9 POLY(1) 103 0 0 .70 Q1 5 2 401 QX Q2 6 9 402 QX RDEG1 401 4 208 RDEG2 402 4 208 Dsub 50 99 DX *C4 5 6 7PF * ***************SECOND STAGE****************** IS 99 50 18mA * SETS IS ^ ****OUTPUT VOLTAGE LIMITING**** V2 99 11 .5 D1 12 11 DX D2 10 12 DX V3 10 50 .5 ****LEVEL TRANSLATION **** EH 99 98 99 50 0.5 ****GAIN, 1ST POLE**** G3 98 12 5 6 .0042 *27.1 *1ST POLE 21HZ,AVOL 1E6 R4 12 98 2.387E7 C3 98 12 1.72E-13 * 1.667e-12 * **************FREQUENCY SHAPING STAGES******** * ****POLE STAGE**** G5 98 15 12 98 1E-3 R5 98 15 1E3 C5 98 15 3.3E-13 ****COMMON-MODE STAGE**** G11 98 30 4 98 316E-12 G13 30 98 30 98 1E-3 D11 50 30 DX * *******************OUTPUT STAGE**************** F6 99 50 VA7 1 F5 99 38 VA8 1 D9 40 38 DX D10 38 99 DX VA7 99 40 0 **************** G12 98 32 15 98 1E-3 R15 98 32 1E3 D3 32 36 DX D4 37 32 DX V5 35 37 4V V4 36 35 4V R16 34 35 30 E1 99 33 99 32 1 VA8 33 34 0V L 35 96 50P R17 96 97 20 * ***** MODELS USED ****** .MODEL DX D(IS=1E-15) .MODEL QX NPN(BF=83.3) *BF IS SET FOR FOR INPUT BIAS .ends