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CA3240AE

Part # CA3240AE
Description IC OPAMP GP 4.5MHZ 8DIP
Category IC
Availability Out of Stock
Qty 0
Qty Price
1 + $1.90570

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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

10
FIGURE 9. TRANSIENT RESPONSE
FIGURE 10. PRECISION DIFFERENTIAL AMPLIFIER
Top Trace: Output Voltage;
500mV/Div., 5µs/Div.
Bottom Trace: Collector Of Load Switching Transistor
Load = 100mA to 1A; 5V/Div., 5µs/Div.
1/2
CA3240
+
-
1/2
CA3240
+
-
1
2
3
6
5
7
3
2
6
4
CA3140
7
8
4
100K 1%
2000pF
+15V
0.1µF
OUTPUT
2K
5.1K
1%
1%
5.1K
-15V
100K 1%
100K 1%
2000pF
2000pF
0.1µF
+15V
0.1µF
0.1µF
-15V
100K
3.9K
10M
10M
GAIN
CONTROL
TWO COND.
SHIELDED
CABLE
FREQUENCY RESPONSE (-3dB) DC TO 1MHz
SLEW RATE = 1.5V/µs
COMMON MODE REJ: 86dB
GAIN RANGE: 35dB TO 60dB
CA3240, CA3240A
11
Differential Light Detector
In the circuit shown in Figure 12, the CA3240E converts the
current from two photo diodes to voltage, and applies 1V of
reverse bias to the diodes. The voltages from the CA3240E
outputs are subtracted in the second stage (CA3140) so that
only the difference is amplified. In this manner, the circuit
can be used over a wide range of ambient light conditions
without circuit component adjustment. Also, when used with
a light source, the circuit will not be sensitive to changes in
light level as the source ages.
FIGURE 11. TYPICAL ELECTROCARIOGRAM WAVEFORM
FIGURE 12. DIFFERENTIAL LIGHT DETECTOR
Vertical: 1.0mV/Div.
Amplifier Gain = 100X
Scope Sensitivity = 0.1V/Div.
Horizontal: >0.2s/Div. (Uncal)
3
2
+15V
6
2
3
7
+15V
CA3140
+
6
5
4
8
4
1
7
-15V
-15V
1/2
CA3240E
+
-
1/2
CA3240E
+
0.015µF
100K
0.015µF
100K
+15V
5.1K
1.3
13K
K
C30809
PHOTO
DIODE
C30809
PHOTO
DIODE
-
2K
200K
2K
OUTPUT
-
200k
CA3240, CA3240A
12
Typical Performance Curves
FIGURE 13. OPEN LOOP VOLTAGE GAIN vs SUPPLY VOLTAGE FIGURE 14. GAIN BANDWIDTH PRODUCT vs SUPPLY VOLTAGE
FIGURE 15. SLEW RATE vs SUPPLY VOLTAGE FIGURE16. QUIESCENTSUPPLY CURRENTvsSUPPLYVOLTAGE
FIGURE 17. MAXIMUM OUTPUT VOLTAGE SWING vs
FREQUENCY
FIGURE 18. COMMON MODE REJECTION RATIO vs
FREQUENCY
R
L
=2kΩ
T
A
=-40
o
C
25
o
C
85
o
C
125
100
75
50
25
2520151050
OPEN LOOP VOLTAGE GAIN (dB)
SUPPLY VOLTAGE (V)
R
L
=2kΩ
C
L
=100pF
T
A
=-40
o
C
0 5 10 15 20 25
SUPPLY VOLTAGE (V)
1
10
20
GAIN BANDWIDTH PRODUCT (MHz)
25
o
C
85
o
C
25
o
C
T
A
=-40
o
C
R
L
=2kΩ
5101520
SUPPLY VOLTAGE (V)
25
C
L
= 100pF
20
15
10
5
0
SLEW RATE (V/µs)
0
85
o
C
R
L
= ∞
T
A
=-40
o
C
25
o
C
85
o
C
10
9
8
7
6
5
4
3
2
0 5 10 15 20
SUPPLY VOLTAGE (V)
TOTAL SUPPLY CURRENT (mA)
FORBOTHAMPS
25
25
20
15
10
5
0
OUTPUT VOLTAGE (V
P-P
)
10K 100K
FREQUENCY (Hz)
1M 4M
SUPPLY VOLTAGE: V
S
= ±15V
T
A
=25
o
C
120
100
80
60
40
20
0
SUPPLY VOLTAGE: V
S
= ±15V
T
A
=25
o
C
10
1
10
2
10
3
10
4
10
5
10
6
10
7
COMMON MODE REJECTION RATIO (dB)
FREQUENCY (Hz)
CA3240, CA3240A
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