RC4200N Fairchild Semiconductor, RC4200N Datasheet - Page 4

• 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
Electrical Characteristics
(Over operating temperature range, V
Notes:
1. Refer to Figure 6 for example.
2. The input circuits tend to become unstable at I
3. These specifications apply with output (I
Applications Discussion
Current Multiplier/ Divider
The basic design criteria for all circuit configurations using
the RC4200 multiplier is contained in equation (1), that is,
The current-product-balance equation restates this as:
4
I
Parameters
Frequency Response,
-3dB point
Supply Voltage
Supply Current
I
1
V
V
3
I
X
Y
(eq. @ I
be used to drive a resistive load directly. The resistive load should be less than 700
supply such that the voltage on pin (4) stays within a range of 0 to +5V.
2
+
+
=
=
I
-------- -
1
I
I
I
4
3
2
R
R
I
I
I
1
2
1
4
Figure 1. Current Multiplier/Divider
1
2
=
=
= I
V
V
R
R
2
X
Y
1
2
6
= 500 µA, nonlinearity error
I
I
1
2
8
1
7
2
–V
RC4200
3
S
T
Test Conditlons
I
1
A
6
= I
= +25°C
5
4
I
2
I
3
4
S
= I
(continued)
I
3
= -15V unless otherwise noted)
4
4
) connected to an op amp summing junction. If desired, the output (I
=
Ammeter
= 150 µA
V
R
0.5%).
R
Z
4
A
65-4200-02
1
4
+V
, I
2
Z
, I
+
4
< 50 µA and linearity decreases when I
Dynamic Range and Stability
The precision dynamic range for the RC4200 is from +50
µA
to +250 µA inputs for I
degrade if this range is exceeded.
To improve the stability for input currents less than 50 µA,
filter circuits (R
Amplifier A1 is used to convert the I
voltage.
Multiplier: Vz = constant 0
Divider: Vy = constant 0
Min.
R
C
V
-18
V
Y
S
S
X
= 10k Ohms
= 0.005 F
Figure 2. Current Multiplier/Divider with Filters
R
4200A
R
Typ.
1
C
C
-15
2
4.0
R
R
S
S
S
S
S
C
S
Max. Min.
) are added to each input (see Figure 2).
-9.0
4.0
I
I
2
1
8
1
1
7
2
, I
–V
and must be pulled up to a positive
2
RC4200
S
3
and I
-18
1
, I
4
2
. Stability and accuracy
6
PRODUCT SPECIFICATION
, I
3
4200
Typ.
4
5
4
4.0
-15
I
I
3
current to an output
> 250 µA
4
REV. 1.2.1 6/14/01
+V
R
C
S
–
+
R
A1
3
S
S
Max. Units
R
-9.0
4
) at pin (4) can
4.0
O
–V
S
65-4200-03
+V
MHz
mA
V
V
Z
O