Analog Ic Design Flashcards
Formula of CB w RB
AVCB= HFERL/HIE+RB
AICB=HFE/1+HFE
ROCB= INFINITE
RICB= HIE+RB/1+HFE
FORMULA OF CE WITHOUT RE
AVCE= -HFE RL/HIE
AICE= -HFE
RO=INFINITE
RI=HIE
CASE 1 TRANSFIG
CC/CD COLLECTOR AND DRAIN
CASE 2 TRANSIFG
CB/CG BASE AND GATE, +
CASE 3 TRANSFIG
CE/CS EMITTER AND SOURCE, -
HOW TO MILLERIZE AND KNOW THE BW (AMAAACGFB)
AC EQUIVALENT CIRCUIT
MILLERIZE- VO/VI, LABEL V
AVCB
AVCE
AVF= MULTIPLY AND DETERMINE THE CASE
C IN AND COUT MILLER
GIVEN CB’C, CC’E SOLVE
FCL AND FCH
BW= FCH-FCL
AVCE W RE
AVCE W RE= -HFE RL/HIE+ (1+HFE)RE
AICE W RE= -HFE
ROCE W RE=INFINITE
RICE W RE= HIE + (1+HFE) RE
AVCC
AVCC= 1- HIE/ HIE+ (1+HFE) RL
AICC= 1+HFE
ROCC= RS+HIE/ 1+HFE
RICC= HIE + (1+HFE) RL
AVCB W/O RB
AVCB W/O RB= HFERL/HIE
AICB W/O RB= HFE/ 1+HFE
ROCB= INFINITE
RICB= HIE/ 1+HFE
BASE TO COLLECTOR
CE
BASE TO EMITTER
CC
COLLECTOR TO EMITTER
CB
direct to ground
no need to millerize
FORMULA OF CASE 1 AND CONDITION
AV LESS THAN OR EQUAL TO 1, +, CC/CD
1.) RIN (M) = R/ 1-AV
2.) RO (M)= R/ 1/AV-1
3.) COUT (M)= C (1/AV-1)
FORMULA OF CASE 2 AND CONDITION
AV> 1 NO PHASE INVERSION +, CB/CG
1.) RIN (M)= R/AV-1
2.) RO (M)= R/ 1-1/AV
3.) C IN (M)= C(AV-1)
4.) COUT (M)= C (1-1/AV)
FORMULA OF CASE 3 AND CONDITION
AV> 1 PHASE INVERSION (-), CE/CS
1.) RIN (M) = R/1+AV
2.) ROUT (M)= R/1+1/AV
3.) CIN(M)= C(1+AV)
4.) COUT (M)= C(1+1/AV)
cx, cy, and cz
combination of parallel capacitors
Input R in (m) needs
Rout(m)
Millerize
gain AVF, and AVT, Cin and Cout, parasitic capacitance
Formula of AVF feedback
AVF
FORMULA OF TOTAL CIRCUIT
AVT
BW
WE NEED THE VALUE OF FCH AND FCL
FCH AND FCL WHERE THERE IS CC/CD
ADD RO(M)
IF THERE IS A VB/VS
VOLTAGE DIVIDER
