DATASHEET
CA3240, CA3240A
FN1050
Rev 6.00
March 4, 2005
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.
Features
• Dual Version of CA3140
• Internally Compensated
• MOSFET Input Stage
- Very High Input Impedance (ZIN) 1.5T (Typ)
- Very Low Input Current (II) 10pA (Typ) at 15V
- Wide Common-Mode Input Voltage Range (VICR): Can
Be Swung 0.5V Below Negative Supply Voltage Rail
• Directly Replaces Industry Type 741 in Most Applications
• Pb-Free Available (RoHS Compliant)
Ordering Information
TEMP.
RANGE (oC)
PART NUMBER
PACKAGE
PKG.
DWG. #
Applications
CA3240AE
-40 to 85
8 Ld PDIP
E8.3
• Ground Referenced Single Amplifiers in Automobile and
Portable Instrumentation
CA3240AEZ
(See Note)
-40 to 85
8 Ld PDIP
(Pb-free)
E8.3
• Sample and Hold Amplifiers
CA3240E
-40 to 85
8 Ld PDIP
E8.3
• Long Duration Timers/Multivibrators (MicrosecondsMinutes-Hours)
CA3240EZ
(See Note)
-40 to 85
8 Ld PDIP
(Pb-free)
E8.3
• Photocurrent Instrumentation
Pb-free PDIPs can be used for through hole wave solder processing only.
They are not intended for use in Reflow solder processing applications.
NOTE: Intersil Pb-free products employ special Pb-free material sets;
molding compounds/die attach materials and 100% matte tin plate termination
finish, which are RoHS compliant and compatible with both SnPb and Pb-free
soldering operations. Intersil Pb-free products are MSL classified at Pb-free
peak reflow temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
Functional Diagram
4mA
V+
BIAS CIRCUIT
CURRENT SOURCES
AND REGULATOR
1.6mA
200A
• Active Filters
• Comparators
• Function Generators
• Instrumentation Amplifiers
• Power Supplies
Pinout
CA3240, CA3240A (PDIP)
TOP VIEW
2A
OUTPUT (A)
INV.
INPUT (A)
NON-INV.
INPUT (A)
1
8 V+
2
V-
2mA
200A
• Intrusion Alarm System
4
7 OUTPUT
INV.
6 INPUT (B)
5 NON-INV.
INPUT (B)
3
2mA
+
INPUT
A 10
-
A 10,000
OUTPUT
C1
12pF
FN1050 Rev 6.00
March 4, 2005
A1
V-
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