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| 型號： | RC4200M |
| 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, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁數(shù)： | 5/23頁 |
| 文件大小： | 206K |
| 代理商： | RC4200M |
PRODUCT SPECIFICATION
RC4200
REV. 1.2.1 6/14/01
5
Voltage Multiplier/Divider
Figure 3. Voltage Multiplier/Divider
Extended Range
The input and output voltage ranges can be extended to
include 0 and negative voltage signals by adding bias
currents. The R
S
C
S
filter circuits are eliminated when the
input and biasing resistors are selected to limit the respective
currents to 50 μA min. and 250 μA max.
Extended Range Multiplier
Figure 4. Extended Range Multiplier
65-4200-04
RC4200
V
Z
R
1
–
V
S
I
3
3
6
4
5
8
7
1
2
I
2
I
1
I
4
V
X
V
Y
R
2
R
4
R
O
V
O
V
X
V
Y
R
1
R
2
=V
O
V
Z
R
O
R
4
Solving for V
0
V
V
R
R
4
V
Z
R
1
R
2
-------------------------------------
=
For a multiplier circuit V
Z
V
R
cons
t
tan
=
=
Therefore: V
0
V
X
V
Y
K where K
R
R
V
R
R
1
R
2
---------------------
=
=
For a divider circuit V
Y
V
R
cons
t
tan
=
=
Therefore: V
0
V
V
Z
------- K where K
V
R
R
4
R
1
R
2
---------------------
=
=
65-4200-05
RC4200
V
X
(Input)
V
Y
(Input)
+V
REF
R
A
R
B
R
O
R
C
–
V
S
–
V
S
+V
S
R
D
R
1
R
2
R
C4
R
CX
I
3
V
O
(Output)
3
6
4
5
8
7
1
2
I
2
I
1
I
4
Resistors R
a
and R
b
extend the range of the V
X
and V
Y
inputs by picking values such that:
Resistor R
C
supplies bias current for I
3
which allows the
output to go negative.
Resistors R
CX
and R
CY
permit equation (6) to balance, ie.:
Cross-Product Cancellation
Cross-products are a result of ths
V
X
V
R
and V
Y
V
R
terms.
To the extend that R
1
R
b
= R
CX
R
D
, and R
2
R
a
= R
CY
R
d
cross-product cancellation will occur.
Arithmetic Offset Cancellation
The offset caused by the V
REF
2
term will cancel to the
extent that R
a
R
b
=
R
0
R
d
, and the result is:
Resistor Values
Inputs:
I
1
min.
(
)
V
min.
R
1
)
-----------------------
V
R
a
-------------
+
50 μA,
=
=
and I
1
(max.)
V
(max.)
R
1
-----------------------
V
R
a
-------------
+
250 μA,
=
=
also I
2
(min.)
V
(min.)
R
2
----------------------
V
R
b
-------------
+
50 μA,
=
=
and I
2
(max.)
V
(max.)
R
2
-----------------------
V
R
b
-------------
+
250 μA.
=
=
R1
VRa
+
R2
VRb
+
R0
RC
RCX
RCY
+
+
+
RD
=
R1R2
VR1Rb
VR2Ra
RaRb
+
+
+
VR0Rd
RcxRd
RCYRd
RcRd
+
+
+
V
V
X
R
1
R
2
---------------
V
V
R
0
R
d
-------------------- or V
0
V
X
V
Y
K
=
=
where K =
R
R
V
REF
R
1
R
2
---------------------------
V
X
min.
(
)
V
X
V
X
(max.)
≤
≤
V
X
V
X
(max.) –
=
V
X
(min.)
V
Y
min.
(
)
V
Y
V
Y
(max.)
≤
≤
V
Y
V
Y
(max.) =
=
V
Y
(min.)
V
REF
Constant (+7V to +18V)
=
K
V
V
X
V
Y
--------------- Design Requirements
)
=
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| RC4200M_32 | 功能描述:增效器/分頻器 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Multiplier 邏輯系列: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:Through Hole 封裝 / 箱體:PDIP-14 |
| RC4200MT | 功能描述:增效器/分頻器 SOIC-8 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Multiplier 邏輯系列: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:Through Hole 封裝 / 箱體:PDIP-14 |
| RC4200MT_32 | 功能描述:增效器/分頻器 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Multiplier 邏輯系列: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:Through Hole 封裝 / 箱體:PDIP-14 |
| RC4200N | 功能描述:增效器/分頻器 DIP-8 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Multiplier 邏輯系列: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:Through Hole 封裝 / 箱體:PDIP-14 |
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