CA3240AE1 Intersil Corporation, CA3240AE1 Datasheet

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CA3240AE1

Manufacturer Part Number
CA3240AE1
Description
Dual, 4.5MHz, BiMOS operational amplifier with MOSFET input/bipolar output
Manufacturer
Intersil Corporation
Datasheet

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Dual, 4.5MHz, BiMOS Operational Amplifier
with MOSFET Input/Bipolar Output
The CA3240A and CA3240 are dual versions of the popular
CA3140 series integrated circuit operational amplifiers. They
combine the advantages of MOS and bipolar transistors on
the same monolithic chip. The gate-protected MOSFET
(PMOS) input transistors provide high input impedance and
a wide common-mode input voltage range (typically to 0.5V
below the negative supply rail). The bipolar output
transistors allow a wide output voltage swing and provide a
high output current capability.
The CA3240A and CA3240 are compatible with the industry
standard 1458 operational amplifiers in similar packages.The
offset null feature is available only when these types are supplied
in the 14 lead PDIP package (E1 suffix).
Ordering Information
Functional Diagram
PUT
OFFSET NULL
NOTE: Only available with 14 lead DIP (E1 Suffix).
CA3240AE
CA3240AE1
CA3240E
IN-
+
-
PART NUMBER
A
10
200µA
CURRENT SOURCES
AND REGULATOR
RANGE (
BIAS CIRCUIT
1.6mA
-40 to 85
-40 to 85
-40 to 85
TEMP.
A
2mA
10,000
o
C)
200µA
1
12pF
C
8 Ld PDIP
14 Ld PDIP
8 Ld PDIP
1
1-888-INTERSIL or 321-724-7143
Data Sheet
PACKAGE
A
2µA
1
2mA
4mA
E8.3
E14.3
E8.3
PKG.
NO.
OUT-
V+
PUT
V-
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
|
Intersil and Design is a trademark of Intersil Americas Inc.
Features
• Dual Version of CA3140
• Internally Compensated
• MOSFET Input Stage
• Directly Replaces Industry Type 741 in Most Applications
Applications
• Ground Referenced Single Amplifiers in Automobile and
• Sample and Hold Amplifiers
• Long Duration Timers/Multivibrators (Microseconds-
• Photocurrent Instrumentation
• Intrusion Alarm System
• Comparators
• Instrumentation Amplifiers
Pinouts
† Pins 9 and 13 internally connected through approximately 3Ω.
- Very High Input Impedance (Z
- Very Low Input Current (I
- Wide Common-Mode Input Voltage Range (V
Portable Instrumentation
Minutes-Hours)
Be Swung 0.5V Below Negative Supply Voltage Rail
OUTPUT (A)
August 2001
INPUT (A)
INPUT (A)
NON - INV.
NON-INV.
INPUT (A)
INPUT (A)
INPUT (B)
INPUT (B)
NON-INV.
NULL (A)
NULL (B)
OFFSET
OFFSET
INV.
INV.
INV.
CA3240, CA3240A (PDIP)
V-
V-
1
2
3
4
CA3240A (PDIP)
1
2
3
4
5
6
7
CA3240, CA3240A
TOP VIEW
TOP VIEW
I
) 10pA (Typ) at ±15V
|
• Active Filters
• Function Generators
• Power Supplies
Copyright © Intersil Americas Inc. 2001
File Number 1050.5
IN
) 1.5TΩ (Typ)
14
13
12
10
11
9
8
8
7
6
5
OFFSET
NULL (A)
V+
OUTPUT (A)
NC
OUTPUT (B)
V+
OFFSET
NULL (B)
V+
OUTPUT
INV.
INPUT (B)
NON-INV.
INPUT (B)
ICR
): Can

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CA3240AE1 Summary of contents

Page 1

... PDIP package (E1 suffix). Ordering Information TEMP. o PART NUMBER RANGE ( C) PACKAGE CA3240AE - PDIP CA3240AE1 - PDIP CA3240E - PDIP Functional Diagram 2mA BIAS CIRCUIT CURRENT SOURCES AND REGULATOR 200µA 1.6mA 200µ ...

Page 2

Absolute Maximum Ratings Supply Voltage (Between V+ and V-). . . . . . . . . . . . . . . . . . . . . 36V Differential Input Voltage . . . . . . . ...

Page 3

Electrical Specifications For Equipment Design, V PARAMETER Equivalent Input Noise Voltage (See Figure 19) Short-Circuit Current to Opposite Supply Gain Bandwidth Product (See Figures 14, 28) Slew Rate (See Figure 15) Transient Response (See Figure 1) Settling Time at 10V ...

Page 4

Electrical Specifications For Equipment Design 5V 0V, T PARAMETER Common-Mode Rejection Ratio Common-Mode Input Voltage Range (See Figure 25) Power Supply Rejection Ratio Maximum Output Voltage (See Figures 24, 25) Maximum Output Current Slew Rate ...

Page 5

Test Circuits and Waveforms FIGURE 2. TEST CIRCUIT AMPLIFIER (30dB GAIN) USED FOR WIDEBAND NOISE MEASUREMENT Schematic Diagram (One Amplifier of Two) BIAS CIRCUIT INPUT STAGE ...

Page 6

Application Information Circuit Description The schematic diagram details one amplifier section of the CA3240. It consists of a differential amplifier stage using PMOS transistors (Q and Q ) with gate-to-source protection against 9 10 static discharge damage provided by zener ...

Page 7

... Offset-Voltage Nulling The input offset voltage of the CA3240AE1 and CA3240E1 can be nulled by connecting a 10kΩ potentiometer between Terminals 3 and and 8 and returning its wiper arm to Terminal 4, see Figure 5A. This technique, however, gives ...

Page 8

... V+ 1(7) CA3240 2( (5) 14(8) 10kΩ V- FIGURE 5A. BASIC NOTE: 11. See Electrical Specification Table for value of R. FIGURE 5. THREE OFFSET-VOLTAGE NULLING METHODS, (CA3240AE1 ONLY) “ON” +6V 0.01µF 5 5.1M 1M “OFF” 0.01µF NOTE: 12. At 220V operation, TRIAC should be T2300D 13(9) 12(10) ...

Page 9

HIGH (0.5V) LEVEL 8.2K 5 100K 6 LOW LEVEL 2N6385 3 DARLINGTON 1 2. 30V I + 2000µF - 50V 2. CA3086E 3 TRANSISTOR 8 ARRAY 5 7 ...

Page 10

Top Trace: Output Voltage; 500mV/Div., 5µs/Div. Bottom Trace: Collector Of Load Switching Transistor Load = 100mA to 1A; 5V/Div., 5µs/Div. FIGURE 9. TRANSIENT RESPONSE +15V 8 10M + 3 1/2 CA3240 - 2 2000pF GAIN 100K 1% CONTROL 100K 3.9K ...

Page 11

C30809 PHOTO DIODE C30809 PHOTO DIODE 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 ...

Page 12

Typical Performance Curves R = 2kΩ L 125 - 100 SUPPLY VOLTAGE (V) FIGURE 13. OPEN LOOP VOLTAGE GAIN vs SUPPLY VOLTAGE 2kΩ ...

Page 13

Typical Performance Curves 1000 = ±15V SUPPLY VOLTAGE 100Ω S 100 FREQUENCY (Hz) FIGURE 19. EQUIVALENT INPUT NOISE VOLTAGE vs FREQUENCY o T ...

Page 14

Typical Performance Curves ∞ OUTPUT VOLTAGE (+V COMMON MODE VOLTAGE (+V -0 ...

Page 15

... Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. ...

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