CA3240AE Equivalent & Substitute Parts

Part Overview

The CA3240AE is a general-purpose operational amplifier featuring two independent circuits in an 8-PDIP through-hole package. Manufactured by Renesas Electronics Corporation, this device operates across a wide supply voltage range of 4V to 36V and is rated for temperatures from -40°C to 85°C. The CA3240AE is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support, maintenance, and production continuity. Substitute parts must maintain functional compatibility while meeting current component availability and compliance requirements.

Substiute Parts

CA3240AE

Renesas Electronics CorporationIn Stock: 17342CA3240AE Datasheet

Current PartRFQ

CA3240AEZ

Renesas Electronics CorporationIn Stock: 1759CA3240AEZ Datasheet

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AD712JNZ

Analog Devices Inc.In Stock: 2086AD712JNZ Datasheet

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AD712KNZ

Analog Devices Inc.In Stock: 3820AD712KNZ Datasheet

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OP213FPZ

Analog Devices Inc.In Stock: 2078OP213FPZ Datasheet

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RC4559P

Texas InstrumentsIn Stock: 2299RC4559P Datasheet

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TL072ACP

Texas InstrumentsIn Stock: 2396TL072ACP Datasheet

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TLE2142CP

Texas InstrumentsIn Stock: 1280TLE2142CP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CA3240AE are grouped based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Number of circuits: 2 independent amplifier circuits
• Package type: 8-DIP (0.300", 7.62mm) through-hole mounting
• Supply voltage range: Minimum 4V to maximum 36V overlap required
• Operating temperature range: Minimum -40°C to 85°C or subset thereof
• Output current capability: Minimum 40 mA per channel

Substitution Categories:

Direct Equivalent (Same Amplifier Type): CA3240AEZ maintains identical electrical specifications to the CA3240AE, differing only in product status (Active vs. Obsolete) and RoHS compliance. This part provides the closest functional replacement.

General Purpose Alternatives: OP213FPZ, RC4559P, and TLE2142CP are general-purpose dual-amplifier devices in 8-DIP packages. These parts meet the core package and circuit count requirements. Electrical parameters vary within acceptable ranges for general-purpose applications, with differences in slew rate, bandwidth, and supply current.

J-FET Amplifier Alternatives: AD712JNZ, AD712KNZ, and TL072ACP feature J-FET input stages rather than standard CMOS inputs. These devices provide superior input bias current characteristics and are suitable for applications requiring low input current. Supply voltage minimums differ from the CA3240AE.

All substitute parts are housed in 8-PDIP packages with through-hole mounting and maintain the dual-circuit configuration of the original device.

Parameter Comparison

Engineering Selection Recommendations

CA3240AEZ (Direct Equivalent)

CA3240AEZ is the primary substitute for CA3240AE. Both parts are manufactured by Renesas Electronics Corporation and share identical electrical specifications across all measured parameters. CA3240AEZ is classified as Active product status with ROHS3 compliance, addressing the obsolescence and regulatory limitations of the original CA3240AE. This part is suitable for direct replacement in all applications where the CA3240AE was previously specified.

OP213FPZ (General Purpose, Rail-to-Rail Output)

OP213FPZ is a general-purpose dual amplifier with rail-to-rail output capability. It maintains the same supply voltage range (4V to 36V) and operating temperature range (-40°C to 85°C) as the CA3240AE. The slew rate is lower (1.2 V/µs versus 9 V/µs), and gain bandwidth product is reduced (3.4 MHz versus 4.5 MHz). OP213FPZ is ROHS3 compliant and Active status. Selection of this part is appropriate for applications where lower slew rate is acceptable and rail-to-rail output swing is beneficial.

RC4559P (General Purpose, Low Supply Current)

RC4559P is a general-purpose dual amplifier with significantly reduced supply current (3.3 mA per channel versus 8 mA). However, this part has a minimum supply voltage of 10V, which restricts use in applications requiring 4V to 9V operation. Output current per channel is limited to 10 mA compared to 40 mA for the CA3240AE. Operating temperature range is 0°C to 70°C. RC4559P is ROHS3 compliant and Active status. Selection is appropriate for applications with higher supply voltages and lower output current requirements.

TLE2142CP (General Purpose, Rail-to-Rail, High Slew Rate)

TLE2142CP is a general-purpose dual amplifier with rail-to-rail output and elevated slew rate (45 V/µs). It maintains the 4V minimum supply voltage and extends maximum supply voltage to 44V. Output current capability is 50 mA per channel, exceeding the CA3240AE specification. Operating temperature range is 0°C to 70°C. TLE2142CP is ROHS3 compliant and Active status. Selection is appropriate for high-speed applications and designs requiring extended supply voltage range.

AD712JNZ and AD712KNZ (J-FET Input, Low Input Bias Current)

AD712JNZ and AD712KNZ are J-FET input dual amplifiers with input bias current of 25 pA, substantially lower than the CA3240AE (10 pA). Both parts have identical electrical specifications and differ only in temperature grade designation. Minimum supply voltage is 9V, restricting use in applications below this threshold. Slew rate is 20 V/µs, and output current is 25 mA per channel. Operating temperature range is 0°C to 70°C. Both parts are ROHS3 compliant and Active status. Selection is appropriate for applications requiring J-FET input characteristics and supply voltages of 9V or higher.

TL072ACP (J-FET Input, High Gain Bandwidth)

TL072ACP is a J-FET input dual amplifier with gain bandwidth product of 5.25 MHz, exceeding the CA3240AE (4.5 MHz). Slew rate is 13 V/µs. Input bias current is 65 pA. Minimum supply voltage is 10V. Supply current is 1.4 mA per channel, the lowest among all substitutes. Operating temperature range is 0°C to 70°C. TL072ACP is ROHS3 compliant and Active status. Selection is appropriate for low-power applications with higher supply voltages and J-FET input requirements.

Frequently Asked Questions (FAQ)

Q: Can CA3240AEZ be used as a direct replacement for CA3240AE?

A: Yes. CA3240AEZ is manufactured by the same company (Renesas Electronics Corporation) and maintains identical electrical specifications for all measured parameters including slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current, and supply voltage range. The primary differences are product status (Active versus Obsolete) and RoHS compliance (ROHS3 versus non-compliant). CA3240AEZ is the recommended substitute for direct replacement.

Q: What are the key differences between general-purpose and J-FET amplifier substitutes?

A: General-purpose substitutes (OP213FPZ, RC4559P, TLE2142CP) use standard CMOS input stages and are suitable for applications where input bias current in the picoampere range is acceptable. J-FET substitutes (AD712JNZ, AD712KNZ, TL072ACP) feature J-FET input stages with input bias currents in the picoampere range but offer superior input impedance characteristics. J-FET devices typically require higher minimum supply voltages (9V to 10V) compared to general-purpose alternatives (4V minimum).

Q: Which substitute parts maintain the full operating temperature range of the CA3240AE (-40°C to 85°C)?

A: Only CA3240AEZ and OP213FPZ maintain the full operating temperature range of -40°C to 85°C. All other substitute parts are rated for 0°C to 70°C operation. Selection of temperature-rated parts is critical for applications requiring extended low-temperature operation below 0°C.

Q: Are all substitute parts available in the same 8-DIP package?

A: Yes. All substitute parts listed are housed in 8-DIP (0.300", 7.62mm) through-hole packages with identical pin configurations. Direct physical substitution is possible without PCB redesign.

Q: What is the minimum supply voltage requirement for each substitute?

A: CA3240AEZ, OP213FPZ, and TLE2142CP support 4V minimum supply voltage, matching the CA3240AE. RC4559P and TL072ACP require 10V minimum. AD712JNZ and AD712KNZ require 9V minimum. Applications operating below 9V must use CA3240AEZ, OP213FPZ, or TLE2142CP.

Q: Which substitute provides the highest output current capability?

A: TLE2142CP provides 50 mA per channel output current, exceeding the CA3240AE specification of 40 mA. CA3240AEZ and OP213FPZ also provide 40 mA per channel. RC4559P is limited to 10 mA per channel, and AD712JNZ and AD712KNZ provide 25 mA per channel.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts are ROHS3 compliant. The original CA3240AE is RoHS non-compliant. Selection of any substitute part addresses RoHS compliance requirements for new designs and manufacturing processes.

Q: Which substitute has the lowest supply current consumption?

A: TL072ACP has the lowest supply current at 1.4 mA per channel (2.8 mA total for dual channels). This is significantly lower than the CA3240AE (8 mA per channel). TL072ACP is suitable for battery-powered and low-power applications where supply current is a critical design parameter.

Q: Can RC4559P be used in applications requiring 4V to 9V supply voltage operation?

A: No. RC4559P has a minimum supply voltage requirement of 10V and cannot operate below this threshold. For applications requiring operation in the 4V to 9V range, use CA3240AEZ, OP213FPZ, or TLE2142CP.

Q: What is the difference between AD712JNZ and AD712KNZ?

A: AD712JNZ and AD712KNZ are functionally identical J-FET input dual amplifiers with the same electrical specifications. Both are manufactured by Analog Devices Inc. and are housed in 8-DIP packages. The designation difference reflects temperature grade classification, but both are rated for 0°C to 70°C operation. Selection between these parts is based on availability and supplier preference.