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| 型號： | RC4200N |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | Analog Multiplier |
| 中文描述： | ANALOG MULTIPLIER OR DIVIDER, 4 MHz BAND WIDTH, PDIP8 |
| 封裝： | PLASTIC, DIP-8 |
| 文件頁數(shù)： | 7/23頁 |
| 文件大?。?/td> | 206K |
| 代理商： | RC4200N |
PRODUCT SPECIFICATION
RC4200
REV. 1.2.1 6/14/01
7
Extended Range Divider
Figure 6. Extended Range Divider
As with the extended range multiplier, resistors R
az
and R
ao
are added to cancel the cross-product error caused by the
biasing resistors, i.e.
To cancel cross-product and arithmetic offset:
R
ao
R
b
= R
0
R
d
, R
az
R
b
= R
4
R
c
and R
a
R
b
= R
c
R
d
and the result is:
65-4200-08
RC4200
Multiplier
V
X
(Input)
S
O
S
ao
az
Ra
Rb
R1
R
R
-V
I
3
R
V
O
(Output)
+V
S
-V
3
6
4
5
8
7
1
2
Rc
Rd
I
2
I
1
I
4
+V
REF
+V
REF
RC5534
V
Z
(Output)
R4
R1
Rao
+
Raz
VRa
+
+
VRb
R0
RC
+
R4
RD
+
=
VR1Rb
RaoRb
RazRb
RaRb
+
+
+
R0R4
VR0Rd
VR4Rc
RcRd
+
+
+
V
V
R
1
R
b
---------------------
V
V
R
0
R
4
-------------- or V
0
=
V
V
Z
K
-----------
=
where K = V
R
R
4
---------------------------
R
1
R
b
Notice that it is necessary to match the above resistor cross-
products to within the amount of error tolerable in the out-
put offset, i.e., with a 10V F.S. output, 0.1% resistor cross-
product match will give 0.1% x 10V. untrimmable output
offset voltage.
Resistor Values
Inputs:
V
X
(min.)
≤
V
X
≤
V
X
(max.)
V
X
= V
X
(max.) = V
X
(min.)
V
Z
(min.)
≤
V
Z
≤
V
Z
(max.)
V
Z
= V
Z
(max.) = V
Z
(min.)
V
REF
= Constant (+7V to +18V)
Outputs:
V
0
(min.)
≤
V
0
≤
V
0
(max.)
V
0
= V
0
(max.) = V
0
(min.)
K
V
V
V
X
-------------- Design Requirement
)
=
R
0
V
750
A
----------------, R
b
V
250
A
-----------------, R
4
V
200
A
----------------
=
=
=
R
c
V
V
700
A V
0
max.
–
750
A
V
0
)
------------------------------------------------------------------------------
=
R
d
V
V
200
A V
Z
max.
–
250
A
V
Z
)
-------------------------------------------------------------------------------
=
R
a
R
R
R
b
------------, R
az
R
R
R
b
------------, R
ao
R
R
d
R
b
-------------
=
=
=
R
1
V
V
Z
600
AK
----------------------
=
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