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CA3140, CA3140A
Data Sheet February 10, 2005 FN957.9

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 CA3140A and CA3140 are intended for operation at supply voltages up to 36V (±18V).

Features
• MOSFET Input Stage - Very High Input Impedance (ZIN) -1.5TΩ (Typ) - Very Low Input Current (Il) -10pA (Typ) at ±15V - Wide Common Mode Input Voltage Range (VlCR) - 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 • Pb-Free Available (RoHS Compliant)

Applications
• Ground-Referenced Single Supply Amplifiers in Automobile 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

Ordering Information
PART NUMBER (BRAND) CA3140AE CA3140AM (3140A) CA3140AM96 (3140A) CA3140AMZ (3140A) (See Note) CA3140AMZ96 (3140A) (See Note) CA3140E CA3140M (3140) CA3140M96 (3140) CA3140MZ (3140) (See Note) CA3140MZ96 (3140) (See Note) TEMP. RANGE (°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 -55 to 125 -55 to 125 PACKAGE 8 Ld PDIP 8 Ld SOIC PKG. DWG. # E8.3 M8.15

• Function Generators • Tone Controls • Power Supplies • Portable Instruments • Intrusion Alarm Systems

8 Ld SOIC Tape and Reel 8 Ld SOIC (Pb-free) M8.15

Pinout
CA3140 (PDIP, SOIC) TOP VIEW
OFFSET NULL INV. INPUT 1 2 3 4 8 STROBE V+ OUTPUT OFFSET NULL

8 Ld SOIC Tape and Reel (Pb-free) 8 Ld PDIP 8 Ld SOIC E8.3 M8.15

+

7 6 5

8 Ld SOIC Tape and Reel 8 Ld SOIC (Pb-free) M8.15

NON-INV. INPUT V-

8 Ld SOIC Tape and Reel (Pb-free)

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.

1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Harris Corporation 1998, Copyright Intersil Americas Inc. 2002, 2004, 2005. All Rights Reserved All other trademarks mentioned are the property of their respective owners.

CA3140, CA3140A
Absolute Maximum Ratings
DC Supply Voltage (Between V+ and V- Terminals) . . . . . . . . ....
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