CA3140, CA3140A
Data Sheet
September 1998
File Number 957.4
4.5MHz, BiMOS Operational Amplifier with
MOSFET Input/Bipolar Output
The CA3140A and CA3140 are integrated circuit operational
amplifiers that combine the advantages of high voltage PMOS
transistors with high voltage bipolar transistors on a single
monolithic chip.
The CA3140A and CA3140 BiMOS operational amplifiers
feature gate protected MOSFET (PMOS) transistors in the
input circuit to provide very high input impedance, very low
input current, and high speed performance. The CA3140A
and CA3140 operate at supply voltage from 4V to 36V (either
single or dual supply). These operational amplifiers are
internally phase compensated to achieve stable operation in
unity gain follower operation, and additionally, have access
terminal for a supplementary external capacitor if additional
frequency roll-off is desired. Terminals are also provided for
use in applications requiring input offset voltage nulling. The
use of PMOS field effect transistors in the input stage results
in common mode input voltage capability down to 0.5V below
the negative supply terminal, an important attribute for single
supply applications. The output stage uses bipolar transistors
and includes built-in protection against damage from load
terminal short circuiting to either supply rail or to ground.
The CA3140 Series has the same 8-lead pinout used for the
“741” and other industry standard op amps. The CA3140A and
CA3140 are intended for operation at supply voltages up to 36V
(±18V).
Features
• MOSFET Input Stage
- Very High Input Impedance (Z
IN
) -1.5TΩ (Typ)
- Very Low Input Current (I
l
) -10pA (Typ) at
±15V
- Wide Common Mode Input Voltage Range (V
lCR
) - Can be
Swung 0.5V Below Negative Supply Voltage Rail
- Output Swing Complements Input Common Mode
Range
• Directly Replaces Industry Type 741 in Most
Applications
Applications
• Ground-Referenced Single Supply Amplifiers in Automo-
bile and Portable Instrumentation
• Sample and Hold Amplifiers
• Long Duration Timers/Multivibrators
(µseconds-Minutes-Hours)
• Photocurrent Instrumentation
• Peak Detectors
• Active Filters
• Comparators
• Interface in 5V TTL Systems and Other Low
Supply Voltage Systems
• All Standard Operational Amplifier Applications
• Function Generators
• Tone Controls
• Power Supplies
• Portable Instruments
• Intrusion Alarm Systems
Ordering Information
PART NUMBER
(BRAND)
CA3140AE
CA3140AM
(3140A)
CA3140AS
CA3140AT
CA3140E
CA3140M
(3140)
CA3140M96
(3140)
CA3140T
TEMP.
RANGE (
o
C)
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
PACKAGE
8 Ld PDIP
8 Ld SOIC
8 Pin Metal Can
8 Pin Metal Can
8 Ld PDIP
8 Ld SOIC
8 Ld SOIC Tape
and Reel
8 Pin Metal Can
T8.C
PKG.
NO.
E8.3
M8.15
T8.C
T8.C
E8.3
M8.15
Pinouts
CA3140 (METAL CAN)
TOP VIEW
TAB
8
OFFSET
NULL
INV. 2
INPUT
NON-INV.
INPUT
3
1
7
V+
6 OUTPUT
STROBE
-
+
5 OFFSET
NULL
4
V- AND CASE
CA3140 (PDIP, SOIC)
TOP VIEW
OFFSET
NULL
INV. INPUT
NON-INV.
INPUT
V-
1
2
3
4
8
STROBE
V+
OUTPUT
OFFSET
NULL
-
+
7
6
5
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
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©
Intersil Corporation 1999
INTERSIL [ INTERSIL CORPORATION ]
