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10
RC4200
PRODUCT SPECIFICATION
Procedure
1.
Set both trimmer pots to 0V on the wiper.
2.
Put in a full scale (0 to V
X
(max.) squarewave on V
X
input. Adjust X
OS
(R5) for proper peak-to-peak ampli-
tude on V
0
output. (Scaling adjust)
3.
Connect V
X
input to ground. Adjust V
OS
(R13) for 0V
on V
0
output.
10K
R
5
£
R
13
50K
£
=
R
7
100
W
=
R
6
R
7
V
S
0.05
---------
=
R
8
R
1
R
a
R
ao
||
||
=
R
9
R
b
=
R
10
R
0
R
C
||
=
R
11
100
W
=
R
12
R
11
V
S
0.1
------
=
Square Root Circuit Offset Adjust
Figure 9. Square Root Circuit Offset Adjust
65-1876
RC4200
Multiplier
V
(Input)
S
O
S
ao
R
a
R
b
R1
R
-V
I
3
R
V
(Output)
+V
S
-V
3
6
4
5
8
7
1
2
R
c
R
d
I
2
I
1
I
4
REF
+V
R4
S
-V
S
+V
R13 V
OS
R12
R10
R11
0.1 F
m
0.1 F
0.1 F
m
R9
R7
R8
R6
R5
S
-V
S
+V
Y
R14
S
+V
S
-V
R15
R17 = R
b
R16
R14-R17 can be used in place of R9 to help
reduce linearity error due to resistor product
mis-match (See Appendix 1).
X
OS