原创 运算放大器电路固有噪声的分析与测量(第四部分)2

附录 4.1：电压噪声宏

* BEGIN PROG NSE NANO VOLT/RT-HZ

.SUBCKT VNSE 1 2

* BEGIN SETUP OF NOISE GEN - NANOVOLT/RT-HZ

* INPUT THREE VARIABLES

* SET UP VNSE 1/F

* NV/RHZ AT 1/F FREQ

.PARAM NLF="15"

* FREQ FOR 1/F VAL

.PARAM FLW="10"

* SET UP VNSE FB

* NV/RHZ FLATBAND

.PARAM NVR="4".5

* END USER INPUT

* START CALC VALS

.PARAM GLF={PWR(FLW,0.25)*NLF/116?}

.PARAM RNV={1.184*PWR(NVR,2)}

.MODEL DVN D KF={PWR(FLW,0.5)/1E11} IS="1".0E-16

* END CALC VALS

I1 0 7 10E-3

I2 0 8 10E-3

D1 7 0 DVN

D2 8 0 DVN

E1 3 6 7 8 {GLF}

R1 3 0 1E9

R2 3 0 1E9

R3 3 6 1E9

E2 6 4 5 0 10

R4 5 0 {RNV}

R5 5 0 {RNV}

R6 3 4 1E9

R7 4 0 1E9

E3 1 2 3 4 1

C1 1 0 1E-15

C2 2 0 1E-15

C3 1 2 1E-15

.ENDS

·END PROG NSE NANOV/RT-HZ

附录 4.2：电流噪声宏

* BEGIN PROG NSE FEMTO AMP/RT-HZ

.SUBCKT FEMT 1 2

* BEGIN SETUP OF NOISE GEN - FEMPTOAMPS/RT-HZ

* INPUT THREE VARIABLES

* SET UP INSE 1/F

* FA/RHZ AT 1/F FREQ

.PARAM NLFF="2".5

* FREQ FOR 1/F VAL

.PARAM FLWF="0".001

* SET UP INSE FB

* FA/RHZ FLATBAND

.PARAM NVRF="2".5

* END USER INPUT

* START CALC VALS

.PARAM GLFF={PWR(FLWF,0.25)*NLFF/116?}

.PARAM RNVF={1.184*PWR(NVRF,2)}

.MODEL DVNF D KF={PWR(FLWF,0.5)/1E11} IS="1".0E-16

* END CALC VALS

I1 0 7 10E-3

I2 0 8 10E-3

D1 7 0 DVNF

D2 8 0 DVNF

E1 3 6 7 8 {GLFF}

R1 3 0 1E9

R2 3 0 1E9

R3 3 6 1E9

E2 6 4 5 0 10

R4 5 0 {RNVF}

R5 5 0 {RNVF}

R6 3 4 1E9

R7 4 0 1E9

G1 1 2 3 4 1E-6

C1 1 0 1E-15

C2 2 0 1E-15

C3 1 2 1E-15

.ENDS

* END PROG NSE FEMTO AMP/RT-HZ