MAX412CPA+ Equivalent & Substitute Parts

Part Overview

The MAX412CPA+ is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, configured as a dual-circuit 8-PDIP through-hole package. This device is classified as obsolete, making equivalent substitutes necessary for new designs and production continuity. The MAX412CPA+ operates across a supply voltage range of 4.8V to 10.5V with a slew rate of 4.5V/µs and gain bandwidth product of 28 MHz, serving applications requiring dual-channel amplification in legacy systems.

Substiute Parts

MAX412CPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2136MAX412CPA+ Datasheet

Current PartRFQ

AD8056ANZ

Analog Devices Inc.In Stock: 7391AD8056ANZ Datasheet

MFR RecommendedRFQ

AD8072JNZ

Analog Devices Inc.In Stock: 2493AD8072JNZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX412CPA+ is determined by the following critical parameters:

Mechanical Compatibility: Both substitute parts maintain the 8-DIP (0.300", 7.62mm) through-hole package format, ensuring direct pin-compatible replacement without PCB redesign.

Electrical Functionality: All candidates provide dual-circuit amplification (2 circuits per package) with through-hole mounting capability.

Supply Voltage Compatibility: The MAX412CPA+ operates within 4.8V to 10.5V. Substitute parts must accommodate this range or provide overlapping supply voltage specifications.

Performance Envelope: Substitutes are evaluated based on slew rate, bandwidth, input bias current, and output current capacity relative to the original specification.

Product Status & Compliance: Active or Last Time Buy status ensures availability. RoHS3 compliance and MSL ratings confirm regulatory alignment with the original part.

The two identified substitutes—AD8056ANZ and AD8072JNZ—meet these criteria with enhanced performance characteristics and confirmed active or transitional product status.

Parameter Comparison

Engineering Selection Recommendations

AD8056ANZ Selection Criteria:

The AD8056ANZ is classified as Active product status, ensuring long-term availability and manufacturing support. This part exhibits significantly enhanced performance with 1400V/µs slew rate and 300 MHz bandwidth, substantially exceeding MAX412CPA+ specifications. The AD8056ANZ operates within 8V to 12V supply range, which overlaps the upper portion of the MAX412CPA+ specification (4.8V to 10.5V). Extended operating temperature range (-40°C to 125°C) provides broader environmental coverage. RoHS3 compliance and MSL 1 rating match the original part. Higher input bias current (400 nA vs. 80 nA) and input offset voltage (3 mV vs. 120 µV) represent trade-offs for improved bandwidth performance. Increased supply current (10mA vs. 2.5mA) and higher output current capability (60 mA vs. 35 mA) support more demanding load conditions.

AD8072JNZ Selection Criteria:

The AD8072JNZ carries Last Time Buy status, indicating limited future availability. This part is optimized for current feedback applications with 500V/µs slew rate and 100 MHz bandwidth. Supply voltage specification (±2.5V to ±6V dual, 5V to 12V single) accommodates the MAX412CPA+ range within single-supply configuration. Output current per channel (30 mA) remains comparable to the original specification (35 mA). Supply current (3.5 mA) is closer to the MAX412CPA+ requirement than AD8056ANZ. RoHS3 compliance and MSL 1 rating align with regulatory requirements. The Last Time Buy status necessitates inventory planning for long-term production requirements.

Recommendation Logic:

For new designs requiring extended product lifecycle and enhanced performance margins, AD8056ANZ is the preferred substitute due to Active status and superior electrical characteristics. For existing production requiring minimal design modification and supply current optimization, AD8072JNZ provides compatibility with lower power consumption, contingent upon Last Time Buy inventory planning.

Frequently Asked Questions (FAQ)

Q1: Can MAX412CPA+ be directly replaced with AD8056ANZ without PCB modification?

A: Yes. Both parts use identical 8-DIP (0.300", 7.62mm) through-hole packaging with pin-compatible configurations. No PCB redesign is required for mechanical substitution. However, circuit performance will change due to significantly higher bandwidth (300 MHz vs. 28 MHz) and slew rate (1400V/µs vs. 4.5V/µs). Circuit stability analysis is required to confirm suitability for the application.

Q2: What is the primary limitation when substituting MAX412CPA+ with AD8056ANZ?

A: The AD8056ANZ minimum supply voltage is 8V, while MAX412CPA+ operates from 4.8V. Applications requiring operation below 8V cannot use AD8056ANZ without additional power supply modification.

Q3: Why is AD8072JNZ marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has announced end-of-life for this product. Existing inventory is available for purchase, but no new production is planned. This status requires long-term inventory planning for applications dependent on this part.

Q4: Are input offset voltage differences between MAX412CPA+ (120 µV) and AD8056ANZ (3 mV) significant?

A: The 25x difference in input offset voltage is material for precision analog applications. Applications with tight DC accuracy requirements may require additional offset trimming circuitry when substituting to AD8056ANZ. General-purpose applications with AC coupling or offset compensation are typically unaffected.

Q5: How does the increased supply current of AD8056ANZ (10mA vs. 2.5mA) affect system design?

A: Higher supply current increases power dissipation and thermal load. Power supply capacity and thermal management must be re-evaluated. For battery-powered or power-constrained applications, AD8072JNZ with 3.5mA supply current may be more suitable.

Q6: Are all three parts RoHS3 compliant?

A: Yes. MAX412CPA+, AD8056ANZ, and AD8072JNZ are all RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, confirming regulatory alignment for EU and similar markets.

Q7: What is the operating temperature range difference impact?

A: MAX412CPA+ operates 0°C to 70°C, while AD8056ANZ extends to -40°C to 125°C. For applications requiring extended temperature operation, AD8056ANZ provides broader environmental coverage. Applications limited to 0°C to 70°C do not benefit from this extended range.