Hardware Reference
In-Depth Information
V
in
Y
CCII+
X
1
Z
V
0
R
Fig. 8.13 Circuit of a root squarer [
1
]
R
V
G
R
−
1
+
R
1
I
x
V
in
I
z
X
CCII+
Y
V
0
Z
V
G
Fig. 8.14 Alternative square-rooting circuit proposed by Liu [
8
]
V
DS
2
I
D
¼
ʼ
s
C
ox
W
L
ð
V
GS
V
TH
Þ
V
DS
ð
8
:
20
Þ
it can be easily determined that the output voltage of this circuit is given by:
!
1
=
2
V
in
R
1
ʼ
s
C
ox
W
1
L
1
V
0
¼
for V
in
>
0
ð
8
:
21
Þ
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