RC4200N Fairchild Semiconductor, RC4200N Datasheet - Page 18

• Manufacturer Part Number: RC4200N
• Description: Multipliers / Dividers DIP-8
• Manufacturer: Fairchild Semiconductor

Specifications of RC4200N

• Package / Case: PDIP-8
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: Through Hole
• Product: Multiplier & Divider
• Lead Free Status / Rohs Status: No

RC4200
Limited Range, First Quadrant Applications
The following circuit has the advantage that cross-product
errors are due only to input offsets and nonlinearity error is
sightly error is slightly less for lower input currents.
The circuit also has no standby current to add to the noise
content, although the signal-to-noise ratio worsens at very
low input currents (1-5 µA) due to the noise current of the
input stages.
The R
the stability for input currents below 50 µA.
The bandpass drops off significantly for lower currents
(<50 µA) and non-symmetrical rise and fall times can cause
second harmonic distortion.
18
S
C
S
filter circuits are added to each input to improve
V
V
V
Z
Y
X
R = 10K, C = 0.005 F
Inputs
+V
-V
+V
Where K =
-V
S
S
S
S
S
V =
50 mV
s
Caution!
50 mV
R2
R1
S
V V
X
V
R R4
R1 R2
z
Y
C s
O
C s
100
100
K
R1
R s
R s
V
V
OS2
OS1
0.1 F
0.1 F
I
I
1
2
8
1
7
2
-V
Multiplier
RC4200
S
3
6
Thermal Symmetry
The scale factor is sensitive to temperature gradients across
the chip in the lateral direction. Where possible, the package
should be oriented such that forces generating temperature
gradients are located physically on the line of thermal sym-
metry. This will minimize scale-factor error due to thermal
gradients.
4
5
I
I
3
4
Symmetry
Thermal
V
Line
OS3
R
O
Output I 3
4156
100 V
R4
1/4
R
0.1 F
V OS2
O
–V S
Gain
Adj.
100 R4
I 2
50 mV
1
2
3
4
+V
-V
S
S
V
OS4
PRODUCT SPECIFICATION
Output
ADJ
V
O
65-1867
REV. 1.2.1 6/14/01
+V
-V
S
S
8
7
6
5
I 1
V OS1
GND
I 4
65-0070