MAX412BCPA+ Equivalent & Substitute Parts

Part Overview

The MAX412BCPA+ is a general-purpose operational amplifier featuring two independent circuits in an 8-PDIP through-hole package, manufactured by Analog Devices Inc./Maxim Integrated. This device is classified as obsolete, indicating discontinued production and limited availability for new designs. The MAX412BCPA+ 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, making it suitable for general-purpose analog signal processing applications. Due to its obsolete status, identifying functionally equivalent substitute components is essential for design continuity, system maintenance, and component procurement.

Substiute Parts

MAX412BCPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1092MAX412BCPA+ 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 MAX412BCPA+ is determined by strict alignment of electrical and mechanical parameters. The primary substitution criteria are:

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

Circuit Configuration: Substitute parts must contain two independent amplifier circuits to maintain functional equivalence in dual-channel applications.

Supply Voltage Range: The substitute must operate within or encompass the original supply voltage specification (4.8V to 10.5V for the MAX412BCPA+).

Output Current Capability: The substitute must deliver sufficient output current per channel to support the application load requirements.

Compliance and Certification: All substitute parts must maintain ROHS3 compliance and MSL Level 1 rating to ensure environmental and reliability standards are met.

The two substitute parts identified—AD8056ANZ and AD8072JNZ—both satisfy these core mechanical and electrical compatibility criteria while offering enhanced performance characteristics in specific application domains.

Parameter Comparison

Engineering Selection Recommendations

AD8056ANZ Selection Criteria:

The AD8056ANZ is an active production component from Analog Devices Inc., providing long-term availability and supply chain stability. This voltage feedback amplifier delivers significantly enhanced performance with a slew rate of 1400V/µs and -3dB bandwidth of 300 MHz, representing a 50x improvement in slew rate and 10.7x improvement in bandwidth compared to the MAX412BCPA+. The AD8056ANZ operates within an 8V to 12V supply range, which encompasses the upper portion of the MAX412BCPA+ specification. Output current capability is increased to 60 mA per channel. The extended operating temperature range (-40°C to 125°C) provides broader environmental coverage. Input bias current increases to 400 nA and input offset voltage to 3 mV, representing trade-offs in precision for enhanced speed performance. Supply current requirement increases to 10 mA. The AD8056ANZ is suitable for applications requiring higher bandwidth and slew rate performance within the compatible supply voltage window.

AD8072JNZ Selection Criteria:

The AD8072JNZ is classified as Last Time Buy, indicating limited future availability. This current feedback amplifier provides intermediate performance characteristics with a slew rate of 500V/µs and -3dB bandwidth of 100 MHz. Supply voltage operation spans ±2.5V to ±6V (dual supply) or 5V to 12V (single supply), overlapping with the MAX412BCPA+ specification range. Output current per channel is 30 mA, slightly below the original specification. Supply current requirement is 3.5 mA. The AD8072JNZ is applicable to video and high-frequency signal processing applications where current feedback topology provides advantages. The Last Time Buy status indicates this component should be considered only for designs with extended production timelines or where specific current feedback characteristics are required.

Compliance Basis:

Both substitute parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with modern manufacturing and environmental standards. Selection between AD8056ANZ and AD8072JNZ depends on application-specific bandwidth, slew rate, and supply voltage requirements rather than compliance considerations.

Frequently Asked Questions (FAQ)

Q1: Can the AD8056ANZ directly replace the MAX412BCPA+ without PCB modifications?

A: Yes. Both devices use the 8-DIP (0.300", 7.62mm) through-hole package with identical pin configurations for dual-channel amplifier circuits. Direct socket substitution is mechanically and electrically feasible. However, the AD8056ANZ requires a minimum supply voltage of 8V compared to the MAX412BCPA+ minimum of 4.8V. Verify that your power supply meets this requirement before substitution.

Q2: What are the key performance differences between the MAX412BCPA+ and AD8056ANZ?

A: The AD8056ANZ provides substantially higher slew rate (1400V/µs versus 4.5V/µs) and bandwidth (300 MHz versus 28 MHz GBW). These enhancements make the AD8056ANZ suitable for high-frequency and fast-transient applications. Trade-offs include higher input bias current (400 nA versus 80 nA), higher input offset voltage (3 mV versus 120 µV), and increased supply current (10 mA versus 2.5 mA per channel). Applications sensitive to input offset voltage or operating from low-current power supplies may require circuit redesign.

Q3: Why is the AD8072JNZ classified as Last Time Buy?

A: Last Time Buy status indicates that Analog Devices Inc. has announced end-of-life for this product. Existing inventory is available for purchase, but no new production is planned. This classification does not affect technical performance or compliance. However, long-term availability cannot be guaranteed, making the AD8072JNZ suitable only for designs with defined production end dates or where current feedback topology provides specific application advantages.

Q4: What supply voltage range must be maintained for successful substitution?

A: The MAX412BCPA+ operates from 4.8V to 10.5V. The AD8056ANZ requires 8V to 12V, creating a compatible window of 8V to 10.5V. The AD8072JNZ accepts ±2.5V to ±6V (dual supply) or 5V to 12V (single supply), providing broader compatibility. Ensure your application power supply falls within the intersection of the original and substitute specifications.

Q5: Are there differences in thermal or environmental operating ranges?

A: The MAX412BCPA+ operates from 0°C to 70°C. The AD8056ANZ extends this range to -40°C to 125°C, providing enhanced environmental coverage. The AD8072JNZ operating temperature range is not specified in the provided parameters. For applications requiring operation outside the original 0°C to 70°C window, the AD8056ANZ is the appropriate selection.

Q6: How do output current capabilities compare?

A: The MAX412BCPA+ delivers 35 mA per channel. The AD8056ANZ provides 60 mA per channel, supporting higher load currents. The AD8072JNZ delivers 30 mA per channel, slightly below the original specification. Verify that your application load current requirements align with the selected substitute's output current rating.

Q7: What is the impact of increased supply current on power budget?

A: The MAX412BCPA+ draws 2.5 mA per channel (5 mA total for dual channels). The AD8056ANZ requires 10 mA total supply current, representing a 2x increase. The AD8072JNZ requires 3.5 mA total supply current, representing a 1.4x increase. Applications with strict power budget constraints should account for this increase in power supply design and thermal management.

Q8: Are all substitute parts RoHS3 compliant?

A: Yes. Both AD8056ANZ and AD8072JNZ are ROHS3 compliant with MSL Level 1 rating, matching the environmental and reliability standards of the MAX412BCPA+. All three components are REACH unaffected and classified under ECCN EAR99 and HTSUS 8542.33.0001.