* MAX4024 MACROMODEL * ------------------------------ * Revision 0, 7/2003 * ------------------------------ * The MAX4024 voltage feedback video multiplexer amplifier combines low-glitch * switching and excellent video specifications with fixed gain of 2. These devices * operate from single +4.5v to +11v supply or +/-2.25v to +/-5.5v dual supply and * feature a low power disable mode which places the output in high-impedence state. * ------------------------------ * Tips for the user * * Ground unused input terminals. * * Do not leave REF terminal floating * * Device characteristics beyond max supply voltage limits not modeled. * * Input voltage clamp diodes are not present for logic inputs. * ------------------------------ * Connections * 1 = IN1A * 2 = IN2A * 3 = IN3A * 4 = VEE * 5 = IN1B * 6 = IN2B * 7 = IN3B * 8 = REF * 9 = OUT3 * 10 = OUT2 * 11 = EN * 12 = VCC * 13 = A/B * 14 = OUT1 *$ ***************** .SUBCKT MAX4024 1 2 3 4 5 6 7 8 9 10 11 12 13 14 XMUXAMP1 12 4 1 5 13 8 14 11 MUXAMP_4024 XMUXAMP2 12 4 2 6 13 8 10 11 MUXAMP_4024 XMUXAMP3 12 4 3 7 13 8 9 11 MUXAMP_4024 .ENDS ***************** .SUBCKT MUXAMP_4024 10 18 41 42 24 74 76 54 * 10 = VCC * 18 = VEE * 41 = INA * 42 = INB * 24 = A/B * 74 = REF * 76 = OUT * 54 = EN ***************** VS1 10 11 0V GBIAS 11 12 52 20 1.5246M CB2 12 20 50F RB1 11 12 1G DBIAS 18 12 DA QI1 13 15 91 QP1 *INPUT BIAS CURRENT AND OFFSET QI2 14 16 92 QP2 RE1 12 91 76.0 RE2 12 92 76.0 *RID 15 16 50K *DIFFERENTIAL INPUT RESISTANCE RIN1 15 20 4.5MEG *COMMON MODE INPUT RESISTANCE RIN2 16 20 4.5MEG DIN1 15 10 DB DIN2 18 15 DB DIN3 16 10 DB DIN4 18 16 DB VOS 17 111 1M *INPUT OFFSET VOLTAGE ECPRR 111 15 110 20 1 *ADDING PSRR AND CMRR RD1 13 18 116.44 RD2 14 18 116.44 C1 13 19 1.7P RZ 19 14 155 FSUP 18 10 VS1 1 *TO COMPENSATE SUPPLY CURRENT ***************** *DEVICE ENABLE REN2 10 54 2.143MEG *EN INPUT IS NODE 54 IEN1 54 18 666.7NA EEN2 55 20 10 54 1 DEN3 55 56 DA REN3 56 58 4.5K REN4 55 58 14K CEN 58 20 10P *DECIDES ENABLE AND DISABLE TIME DELAYS ****** EEN1 48 20 58 20 1 *VCC - VEN EHYST2 48 49 52 20 0.55 VEN1 49 50 3.3V REN1 50 51 50 VIS2 20 51 0V ****** FEN1 20 52 VIS2 4 DEN2 20 52 DA DEN1 52 53 DA CL2 52 20 2P VLIM2 53 20 1V ***************** *CHANNEL SELECTON RAB2 10 24 2.143MEG *A/B INPUT IS NODE 24 IAB1 24 18 666.7NA ****** EAB2 26 20 10 24 1 *VCC - VAB EHYST1 26 27 32 20 0.55 VAB1 27 28 3.3V RAB3 28 30 50 VIS1 20 30 0V ****** FAB1 20 32 VIS1 4 DAB1 20 32 DA DAB2 32 33 DA RAB4 32 20 1K CL1 32 20 1P VLIM1 33 20 1V ****** CAB4 42 20 0.1P CAB5 41 20 0.1P CAB6 17 20 0.1P MAB1 17 43 41 18 MOSFETN RAB5 43 44 10K DAB3 44 105 DA RAB7 105 43 8K CAB1 43 41 2.5P EAB3 44 41 32 20 10 MAB2 17 45 42 18 MOSFETN RAB6 45 46 10K DAB4 46 106 DA RAB8 106 45 8K CAB2 45 42 2.5P EAB4 46 47 20 32 10 VAB2 47 42 10V *SWITCHING TRANSIENT ET 93 20 32 20 .15 CT 93 94 100P RT1 94 95 6 LT 95 20 20N RT2 95 96 1K CT2 96 20 10P GT 21 20 94 20 1.25M ***************** GP 20 101 14 13 2.5M RP 101 20 400 CP 101 102 13.5P RZ1 102 103 1.55K LZ1 103 20 3U ***************** *GAIN STAGE *85dB GAIN GA 21 20 101 20 25.14M RO1 21 20 707.35 GB 22 20 21 20 1 RO2 22 20 1K EF 23 20 22 20 1 CC 23 21 10P *DOMINANT POLE AT 22.5KHZ EG 20 18 10 18 0.5 ***** DVL1 22 59 DA *VOLTAGE LIMITING DVL2 60 22 DA ELIM2 59 61 10 18 0.5 ELIM1 63 60 10 18 0.5 ECOMP2 62 20 65 66 1 ECOMP1 64 20 65 66 1 HCOMP2 62 61 VIS3 16.59 HCOMP1 64 63 VIS3 9.574 ***************** EOUT 65 20 22 20 1 *VOLTAGE FOLLOWER ROUT1 65 66 18 VIS3 66 67 0V ***************** *CURRENT LIMIT DSC1 67 68 DA DSC2 69 67 DA DSC3 69 70 DA DSC4 70 68 DA ISC1 68 69 100MA *LIMITING CURRENT T0 100MA RSC 68 69 1MEG ***************** *DISABLE SWITCH MEN1 71 72 70 10 MOSFETP MEN2 71 73 70 18 MOSFETN EEN3 70 72 52 20 10 EEN4 73 70 52 20 10 RSHUNT 70 71 74K ***************** *GAIN SET TO 2 RA 71 16 500 RB 16 74 500 * NODE 74 IS THE REF PIN ***************** *DC AND AC OUTPUT IMPEDENCE ROUT2 71 75 0.15 LOUT 75 76 23.87N *1.5 OHMS AT 10MHz RLOAD 76 20 10MEG ***************** *SUPPLY CURRENT *BIAS CURRENT DSUP 18 10 DB ISUP 10 18 1.2MA *STANDBY AND BIAS CURRENT PER AMP. GSUP 10 18 52 20 7.14M *LOAD CURRENT FSUP1 20 77 VIS3 1 CSUP 77 20 1P DSUP1 20 77 DB DSUP2 77 78 DB VIS4 78 20 0V FSUP2 10 18 VIS4 1 ***************** *PSRR DC AND AC ESUP1 79 20 10 18 1 CPSRR 79 80 2.75PF RPSRR 80 20 285 GPSRR1 20 110 80 20 1 *AC GPSRR2 20 110 79 20 316.2U *DC RRR 110 20 1 ***************** *CMRR DC AND AC ECM1 20 81 18 12 1 CCM 81 82 2.546PF RCM 82 20 5.0 GCM1 20 110 82 20 1 *AC GCM2 20 110 81 20 31.62U *DC ***************** *MAX COMMON MODE INPUT VCC-2.8V DIL 12 83 DA RIL 83 84 300 VIL 85 84 2.454V EIL 85 18 10 18 1 ***************** *MINIMUM SUPPLY VOLTAGE SET AT 4.5 OR +/-2.25 DVL3 18 12 DA DVL4 12 86 DA FVL 86 18 VIS5 1 VVL 87 18 4.5V VIS5 87 88 0V DVL5 88 89 DA RVL 89 90 300 EVL1 90 18 10 18 1 ********************************************************** .MODEL QP1 PNP(IS=16E-15 BF=175) .MODEL QP2 PNP(IS=16E-15 BF=171) .MODEL MOSFETN NMOS(VTO=5 KP=88E-1) .MODEL MOSFETP PMOS(VTO=-5 KP=88E-1) .MODEL DA D(N=0.1M) .MODEL DB D(IS=100E-14) ********************************************************** .ENDS *$