rc4200 Fairchild Semiconductor, rc4200 Datasheet - Page 11

• Manufacturer Part Number: rc4200
• Description: Analog Multiplier
• Manufacturer: Fairchild Semiconductor

PRODUCT SPECIFICATION
Squaring Circuits V
V
REV. 1.2.1 6/14/01
if R
then
K
R
R
R
R
R
V
------- -
R
R
X
1
d
c
cx
0
X
1
a
2
=
(min.) ≤ V
2
=
=
=
=
a
=
+
2
=
------- - (Design Requirement)
V
V
-------------------- -
V
---------------- -
200µA
---------------- -
250µA
R
------
R
∆V
------------------ -
2V
-------------------------
------------------------------------------------------------------------------- -
250µA∆V
160µA
=
V
R
X
0
R
------------ -
0
∆V
a
d
2R
V
2
2
0
REF
1
R
R
X
X
R
R
REF
1
X
d
c
2
V
d
a
R
R
K
X
REF
a
d
≤ V
=
and R
X
∆V
+
V
------- - or V
R
X
–
V
------------- -
X
1
(max.)
2
2
X
200µA V
R
REF
1
(Input)
V
R
a
V
2
0
a
REF
X
2
= K V
=
=
0
2R
V
-------------------- -
∆V
=
X
R
0
CX
V
(
X
0
X
KV
max.
R
2
REF
R
= V
d
D
R1
X
2
)
+
X
R
R1
a
(max.) – V
where K =
V
------------- -
R
REF
c
R
d
Figure 10. Squaring Circuit
2
+
V
--------------------- -
R
X
b
X
R
-------------------- -
V
I
(min.)
V
2
c
I
R
REF
1
R
8
1
R
REF
7
2
0
d
CX
R
-V
R
Multiplier
d
RC4200
+V
S
3
1
2
REF
6
5
4
I
3
I
R
4
c
RC5534
R
+V
-V
O
R
S
S
d
(Output)
65-1875
V
O
RC4200
11