MAX474CPA Equivalent & Substitute Parts

Part Overview

The MAX474CPA is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, featuring dual circuits in an 8-PDIP through-hole package. This device is classified as obsolete, indicating discontinued production and limited availability for new designs. The MAX474CPA delivers rail-to-rail output capability with a slew rate of 17V/µs and gain bandwidth product of 12 MHz, suitable for general-purpose amplification applications requiring moderate bandwidth and speed performance.

Due to its obsolete status, component sourcing for new production or long-term supply chain requirements necessitates identification of functionally equivalent alternatives. Substitute parts must maintain compatibility with existing PCB layouts, electrical performance within acceptable tolerances, and supply chain viability.

Substiute Parts

MAX474CPA

Analog Devices Inc./Maxim IntegratedIn Stock: 87843MAX474CPA Datasheet

Current PartRFQ

MCP6292-E/P

Microchip TechnologyIn Stock: 2290MCP6292-E/P Datasheet

MFR RecommendedRFQ

TLV2772AIP

Texas InstrumentsIn Stock: 1250TLV2772AIP Datasheet

MFR RecommendedRFQ

TLV2772CP

Texas InstrumentsIn Stock: 981TLV2772CP Datasheet

MFR RecommendedRFQ

TLV2772IP

Texas InstrumentsIn Stock: 1936TLV2772IP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX474CPA is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 8-DIP (0.300", 7.62mm) through-hole package to ensure direct PCB layout compatibility without redesign.

Functional Requirements: Substitute parts must provide dual-circuit (2 circuits) general-purpose amplification with rail-to-rail output capability.

Electrical Performance Boundaries: Substitute parts must operate within the supply voltage range of 2.7 V to 5.25 V. Input bias current, input offset voltage, slew rate, and gain bandwidth product may vary within acceptable application tolerances, provided the substitute does not introduce incompatibility with existing circuit design.

Operating Temperature Range: The MAX474CPA operates from 0°C to 70°C. Substitute parts with extended temperature ranges (such as -40°C to 125°C) are acceptable for applications within the original temperature specification.

Compliance and Availability: Active or Last Time Buy status parts are preferred over obsolete alternatives. RoHS3 compliance is advantageous for modern supply chain requirements, though not mandatory for direct electrical substitution.

The three substitute parts identified—MCP6292-E/P, TLV2772AIP, TLV2772CP, and TLV2772IP—satisfy all package and functional requirements while offering improved compliance status and extended availability.

Parameter Comparison

Engineering Selection Recommendations

MCP6292-E/P (Microchip Technology): This part holds Active product status, ensuring long-term availability and supply chain stability. It provides the closest electrical performance match to the MAX474CPA with a gain bandwidth product of 10 MHz and slew rate of 7 V/µs. The MCP6292-E/P achieves ROHS3 compliance and operates within the original supply voltage specification (2.4 V to 6 V encompasses the MAX474CPA range). Input bias current is significantly lower at 1 pA, and supply current is reduced to 1 mA per channel, offering improved power efficiency. This part is recommended for new designs requiring long-term component availability and modern compliance standards.

TLV2772AIP (Texas Instruments): This CMOS amplifier carries Last Time Buy status with extended operating temperature range (-40°C to 125°C), exceeding the original 0°C to 70°C specification. The TLV2772AIP provides ROHS3 compliance and higher output current capability (50 mA per channel). The gain bandwidth product of 5.1 MHz is lower than the MAX474CPA, and slew rate is 10.5 V/µs. This part is suitable for applications where extended temperature operation is beneficial and where the reduced bandwidth is acceptable.

TLV2772CP (Texas Instruments): Functionally identical to TLV2772AIP but with operating temperature range limited to 0°C to 70°C, matching the original MAX474CPA specification. Last Time Buy status applies. This variant is appropriate for applications requiring temperature range alignment with the original part without extended low-temperature operation.

TLV2772IP (Texas Instruments): Functionally identical to TLV2772AIP with extended operating temperature range (-40°C to 125°C). Last Time Buy status applies. This part offers the same electrical characteristics as TLV2772AIP with broader temperature coverage.

Selection Priority: For new production requiring maximum supply chain longevity, MCP6292-E/P is the primary recommendation due to Active status. For applications where the TLV2772 series characteristics are acceptable, TLV2772CP provides temperature range alignment with the original part.

Frequently Asked Questions (FAQ)

Q: Can the MCP6292-E/P directly replace the MAX474CPA without PCB modifications?

A: Yes. Both parts use the 8-DIP (0.300", 7.62mm) through-hole package with identical pinout compatibility for dual general-purpose amplifiers with rail-to-rail output. No PCB layout changes are required.

Q: What is the primary difference between TLV2772AIP, TLV2772CP, and TLV2772IP?

A: The three TLV2772 variants are electrically identical in terms of amplifier performance (slew rate, gain bandwidth product, input offset voltage, and output current). The differences are operating temperature range and product status. TLV2772CP operates 0°C to 70°C (matching MAX474CPA). TLV2772AIP and TLV2772IP both operate -40°C to 125°C. All three carry Last Time Buy status.

Q: Why does the MCP6292-E/P have lower supply current than the MAX474CPA?

A: The MCP6292-E/P is designed with modern CMOS technology, reducing quiescent current to 1 mA per channel compared to the MAX474CPA at 2 mA per channel. This is a design improvement and does not affect functional compatibility.

Q: Is the lower gain bandwidth product of the TLV2772 series (5.1 MHz vs. 12 MHz) a concern?

A: The TLV2772 series operates at reduced bandwidth compared to the MAX474CPA. Applications requiring the full 12 MHz bandwidth should use the MCP6292-E/P (10 MHz) or verify that the 5.1 MHz specification is acceptable for the intended circuit function.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. MCP6292-E/P, TLV2772AIP, TLV2772CP, and TLV2772IP all carry ROHS3 Compliant status, meeting modern environmental and regulatory requirements. The original MAX474CPA is RoHS non-compliant.

Q: Which substitute part has the best long-term availability?

A: MCP6292-E/P holds Active product status, indicating ongoing production and the longest guaranteed availability. The TLV2772 series variants carry Last Time Buy status, indicating limited future availability.

Q: Can I use TLV2772AIP in an application with 0°C to 70°C operating temperature requirement?

A: Yes. TLV2772AIP operates from -40°C to 125°C, which encompasses the 0°C to 70°C range. The extended temperature capability does not create incompatibility with narrower temperature specifications.

Q: What is the significance of "Last Time Buy" status?

A: Last Time Buy indicates the manufacturer has announced end-of-life for the product. Customers may place final orders before production ceases. These parts remain functionally equivalent but have limited future availability compared to Active status parts.