CA3240 Datasheet, PDF (1/15 Pages) Intersil Corporation – Dual, 4.5MHz, BiMOS Operational Amplifier with MOSFET Input/Bipolar Output

Data Sheet
CA3240, CA3240A
August 2001
File Number 1050.5
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
PART NUMBER
CA3240AE
CA3240AE1
CA3240E
TEMP.
RANGE (^oC)
PACKAGE
-40 to 85 8 Ld PDIP
-40 to 85 14 Ld PDIP
-40 to 85 8 Ld PDIP
PKG.
NO.
E8.3
E14.3
E8.3
Functional Diagram
2mA
4mA _V+
Features
• Dual Version of CA3140
• Internally Compensated
• MOSFET Input Stage
- Very High Input Impedance (Z_IN) 1.5TΩ (Typ)
- Very Low Input Current (I_I) 10pA (Typ) at ±15V
- Wide Common-Mode Input Voltage Range (V_ICR): Can
Be Swung 0.5V Below Negative Supply Voltage Rail
• Directly Replaces Industry Type 741 in Most Applications
Applications
• Ground Referenced Single Amplifiers in Automobile and
Portable Instrumentation
• Sample and Hold Amplifiers
• Long Duration Timers/Multivibrators (Microseconds-
Minutes-Hours)
• Photocurrent Instrumentation
• Intrusion Alarm System
• Active Filters
• Comparators
• Function Generators
• Instrumentation Amplifiers • Power Supplies
Pinouts
CA3240, CA3240A (PDIP)
TOP VIEW
+
IN-
PUT
-
BIAS CIRCUIT
CURRENT SOURCES
AND REGULATOR
200µA 1.6mA 200µA
A ≈ 10
A ≈ 10,000
C₁
12pF
2µA 2mA
A≈1
OUT-
PUT
V-
OFFSET NULL
NOTE: Only available with 14 lead DIP (E1 Suffix).
OUTPUT (A) 1
INV.
INPUT (A) ²
NON-INV. ₃
INPUT (A)
V- ⁴
8 V+
7 OUTPUT
6
INV.
INPUT (B)
5 ^NON-INV.
INPUT (B)
CA3240A (PDIP)
TOP VIEW
INV.
INPUT (A) ¹
NON-INV.
INPUT (A)
2
OFFSET ₃
NULL (A)
V- 4
OFFSET
NULL (B) ⁵
NON - INV.
INPUT (B)
6
INV.
INPUT (B)
7
OFFSET
14 _{NULL (A)}
13 V+†
12 OUTPUT (A)
11 NC
10 OUTPUT (B)
9 V+†
8
OFFSET
NULL (B)
† Pins 9 and 13 internally connected through approximately 3Ω.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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