1
CA3240, CA3240A
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.
Functional Diagram
Features
Dual Version of CA3140
Internally Compensated
MOSFET Input Stage
- Very High Input Impedance (ZIN) 1.5TΩ (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)
Applications
Ground Referenced Single Amplifiers in Automobile and
Portable Instrumentation
Sample and Hold Amplifiers
Long Duration Timers/Multivibrators (Microseconds-
Minutes-Hours)
Photocurrent Instrumentation
Pinout
CA3240, CA3240A (PDIP)
TOP VIEW
Ordering Information
PART NUMBER
TEMP.
RANGE (oC)
PACKAGE
PKG.
DWG. #
CA3240AE
-40 to 85
8 Ld PDIP
E8.3
CA3240AEZ
(See Note)
-40 to 85
8 Ld PDIP
(Pb-free)
E8.3
CA3240E
-40 to 85
8 Ld PDIP
E8.3
CA3240EZ
(See Note)
-40 to 85
8 Ld PDIP
(Pb-free)
E8.3
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.
A
≈ 10,000
BIAS CIRCUIT
CURRENT SOURCES
AND REGULATOR
A
≈ 1
2mA
4mA
2mA
1.6mA
2
μA
200
μA
200
μA
IN-
OUT-
C1
12pF
V+
V-
+
-
A
≈ 10
PUT
Intrusion Alarm System
Active Filters
Comparators
Function Generators
Instrumentation Amplifiers
Power Supplies
OUTPUT (A)
INV.
INPUT (A)
NON-INV.
1
2
3
4
8
7
6
5
V+
OUTPUT
INV.
NON-INV.
INPUT (A)
V-
INPUT (B)
Data Sheet
March 4, 2005
FN1050.6
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-352-6832
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2001-2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.