1
1
bvDè0y?" ù?
5.8.5 
DQ

i
R
R'
R
-
+
v
O
i
C
m
v
I
T
ES
I
TO
RI
v
Vv ln?≈
TBE
Vv
ESC
eIi
/

v
O
sK? !
??c -5.8 "?b¥

E

^
2,·
T
-
+
v
O
i
F
m
v
I
R
± I,eED"E
1,
2
bvDè0y?" ù?
5.9.1 'à
Q
1 ?
? 1?
èaMvl %?
{1úè
ü?è
üb
+
-
v
O
v
I
V
REF
B
2,F?
zb
z"?èa1? 
7ìaíMê?ê
5.9 èa1? 
??c
2
3
bvDè0y?" ù?
3,e ?
?X f ?/
A
VD
"? I
IB
" 0
v
P
> v
N
v
O
= V
OH
v
P
< v
N
v
O
= V
OL
v
I
v
O
V
OH
O
V
OL
V
REF
B
C
z ?′èa V
TH

? 1? ¥
{VB?è
ü
K?
6B?è
ü
?¥
{ ?èa′b
??c -5.9 èa1? 
5.9.1 'à
Q
?B
+
-
v
O
v
I
V
REF
B
4
bvDè0y?" ù?
z
P
{èaM¥Kl
{ ?
èaM
 V
I
z S?"1? 
{ ??|è
a¥sO
?
z M1?
, 7ìèa9ma
>?a?
4
2
ùY?
HW

1
2
ù
0.1(V
OH
-V
OL
)
v
I
V
I1
V
I2
v
O
V
OH
O
0.1(V
OH
-V
OL
)
V
OL
1
V?
??c -5.9 èa1? 
(2)Y?
HW
5.9.1 'à
Q
?=
z
P
{èaM¥Kl
HW t
z
è
^yT
¥·S
0.1(V
OH
-V
OL
)
t
V
I2
v
O
V
OH
O
0.1(V
OH
-V
OL
)
V
OL
 t
3
5
bvDè0y?" ù?
5
{K?

1 il
4úY?
b

2 K?è
^
+
-
v
O
v
I
V
REF
v
O
'
R
D
Z1
D
Z2
Z

+
-
v
O
V
REF
R
1
R
2
v
I
D
Z
(V
Z
)
??c -5.9 èa1? 
5.9.1 'à
Q
? ?
6
{ ?Va 1n
@
+
-
v
O
V
REF
R
1
R
2
v
I
REFIO
Vv
R
r
v +?=
1
hl
{?
hl
{?
L?yT
L?yT
????
'
????
'
6
bvDè0y?" ù?
1 ?
"?1? ¥+?

1 yT 7ì?Q ?

2 1 p¥?1·S1
2
ùaY?


3 dL?

4 ? 8 f ?4
{èa
2 1? ¥sZE
z t?′?b
N
H

{ ?
-W¥èa V
j1
,
??c -5.9 èa1? 
5.9.2 1? ¥+?#sZE
4
7
bvDè0y?" ù?
+
-
v
O
v
I
V
REF1
+
-
V
REF2
C
1
C
2
v
O1
v
O2
D
1
D
2
R
1,V
,1? 
+
-
v
I
v
O
B
?¨o?MDb

?? ??o1Zo
23 g1? 
+
-
v
O
+
-
C
1
C
2
D
1
D
2
R
4
R
3
T
D
3
+5V
-5V
v
1
R
1
R
2
D
Z
6V
_Va 1è
^V
REF1
> V
REF2
??c -5.9 èa1? 
5.9.3 1? ¥?¨  è
8
bvDè0y?" ù?
3,ìí1? 
@
á+(? 
+
-
v
O
v
I
V
REF
v
O
'
D
Z1
D
Z2
R
1
R
2
R
3
R
4
v
N
v
P
s,
32
2
RR
R
F
v
+
=
?Q ?
NP
vv =
"??,
OREFP
v
RR
R
V
RR
R
v
32
2
32
3
+
+
+
=
ZZDO
VVvv ±≈+±= )(
ZREFP
V
RR
R
V
RR
R
v
32
2
32
3
+
±
+
=
ZREFth
V
RR
R
V
RR
R
V
32
2
32
3
1
+
+
+
=
ZREFth
V
RR
R
V
RR
R
V
32
2
32
3
2
+
+
=
V
Z
-V
Z
V
th1
V
th2
v
O
v
I
0
??c - 5.9-5.9.3 1? ¥?¨  è
5
9
bvDè0y?" ù?
+
-
v
O
v
I
V
REF
v
O
'
D
Z1
D
Z2
R
1
R
2
R
3
R
4
v
N
v
P
z ìí+? V
TH1
aV
TH2
z  V
TH
" V
TH1
 V
TH2
" 2F
V
V
Z

íμèa
z V
REF
|+?P·M???Yíμèa
z ?Q ?F
1? ¥J
? ?¨??
? a? F? ?
? <
J
 y
V
Z
-V
Z
V
th1
V
th2
v
O
v
I
0
??c - 5.9-5.9.3 1? ¥?¨  è
t
V
th1
V
th2
v
I
0
10
bvDè0y?" ù?
5.9.5 è5s
5 5.9.5
??c -5.9 èa1? 
+
-
v
O
15K
10K
R
1
R
2
v
I
D
Z
(+ 6V
30K
)
R
3
OOP
vv
RR
R
v
3
1
32
2
=
+
=
6
3
1
6 ±=±=±=
OPZNO
vvVvv
3)9(
3
1
1
=+?=
th
V
Vv
O
9±=
3)9(
3
1
2
==
th
V
v
O
v
I
0
9
-9
3-3
NP
vv =
6
11
bvDè0y?" ù?
??c'1 p
??c'1 p
1g? OPA¥?1·S
cl
2
3 BJTaCMOS OPA¥F?2??è
^
#=?s]-)
3g? OPAL?adL?
??¨¥Hqa+
?¨
?2
s?¨è
^b
4g?

E

^

^?
TasZEaf
1"a+?
5g?1? .
{+?¥sZE.
{+
?×?
^
@
á+(? b
12
bvDè0y?" ù?
? 7c

o?¥á
3D) ?è
^
7.1

o?¥$?
M
1,

o?
.l¥
a ??
HW
¥èaè
@o?
<l
? ? μ ?????¥o?
?,
+?
HW¥f
?′MμlM?b
Zo, ?o,U?o,
o,ò?o,0?o,
¨0o,
?
tc
7
13
bvDè0y?" ù?
2,?1?
0.9V
m
0.1V
m
V
m
V
m
0.5V
m
t
W
t
r
t
f
T

?,V
m
ü (
z,t
W
×ˉ?
ù,T

6
HW,t
r
/?
HW,t
f
] b1,D
???
,?V
m

¨?
ù,T-T
W
?
tc

o?¥á
3D) ?è
^
7.1

o?¥$?
M
?B
14
bvDè0y?" ù?
7.1

o?¥$?
M
?=
3,bvè
^
×Y?D
H×Y?1"
ü??s /K??
q

6a/? ú
s

?
s

K??
q
=
RC
t
mO
eVv 1
RCttt
r
2.2
12
≈?=
35.0≈
Hr
ft
m
RC
t
mO
VeVtv 1.01)(
1
1
=
=
m
RC
t
mO
VeVtv 9.01)(
2
2
=
=
RC
f
H
π2
1
=
R
C
+
_
v
I
+
_
v
O
?
tc

o?¥á
3D) ?è
^