MAX412BCPA Equivalent & Substitute Parts

Part Overview

The MAX412BCPA is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, configured as a dual-circuit (2-channel) device in an 8-PDIP through-hole package. This component is classified as obsolete, which necessitates identification of equivalent substitute parts for ongoing design requirements and production continuity. 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 amplification applications requiring moderate bandwidth performance.

Substiute Parts

MAX412BCPA

Analog Devices Inc./Maxim IntegratedIn Stock: 922MAX412BCPA 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

Substitute parts for the MAX412BCPA are identified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Mechanical Compatibility:

• Package type: 8-DIP (0.300", 7.62mm)
• Mounting type: Through Hole
• Number of circuits: 2 (dual-channel configuration)

Electrical Compatibility Criteria:

• Supply voltage range overlap with original specification (4.8V to 10.5V)
• Output current capability per channel (minimum 35 mA required)
• Input bias current and offset voltage characteristics
• Slew rate and bandwidth performance suitable for general-purpose applications

Compliance & Status:

• RoHS3 compliance maintained
• MSL rating of 1 (Unlimited)
• Active or Last Time Buy product status preferred for availability

The two substitute parts listed (AD8056ANZ and AD8072JNZ) meet the mechanical package requirements and electrical parameter ranges necessary for functional replacement in through-hole PCB designs.

Parameter Comparison

Engineering Selection Recommendations

AD8056ANZ Selection Criteria: The AD8056ANZ is classified as Active product status, ensuring long-term availability and supply chain continuity. This voltage feedback amplifier provides significantly enhanced performance characteristics compared to the MAX412BCPA, including 1400V/µs slew rate and 300 MHz bandwidth. The AD8056ANZ maintains full RoHS3 compliance and MSL-1 rating. Output current capability of 60 mA per channel exceeds the 35 mA requirement. Supply voltage range of 8V to 12V overlaps with the upper portion of the MAX412BCPA specification (4.8V to 10.5V). The extended operating temperature range (-40°C to 125°C) provides broader environmental coverage than the original part (0°C to 70°C). Input bias current of 400 nA and offset voltage of 3 mV represent acceptable trade-offs for improved bandwidth performance.

AD8072JNZ Selection Criteria: The AD8072JNZ is designated Last Time Buy status, indicating limited future availability. This current feedback amplifier offers 500V/µs slew rate and 100 MHz bandwidth, positioning it between the original MAX412BCPA and the AD8056ANZ in performance hierarchy. Output current of 30 mA per channel falls below the 35 mA specification of the MAX412BCPA, requiring circuit-level evaluation. Supply voltage flexibility (±2.5V to ±6V dual, or 5V to 12V single) accommodates various system architectures. RoHS3 compliance and MSL-1 rating are maintained. The Last Time Buy status necessitates careful inventory planning for long-term production requirements.

Recommendation Priority: For new designs and ongoing production requiring component longevity, AD8056ANZ is the preferred substitute due to Active product status. For existing inventory management or cost-sensitive applications where performance headroom exists, AD8072JNZ remains viable pending output current verification at the circuit level.

Frequently Asked Questions (FAQ)

Q1: Can the AD8056ANZ directly replace the MAX412BCPA in existing PCB designs?

A: Yes, mechanical compatibility is confirmed. Both devices use 8-DIP (0.300", 7.62mm) through-hole packaging with identical pin counts and dual-circuit configuration. Electrical compatibility requires verification of supply voltage availability (AD8056ANZ requires minimum 8V versus MAX412BCPA minimum 4.8V) and confirmation that the circuit design can accommodate the higher input offset voltage (3 mV versus 120 µV). Pin-to-pin compatibility must be verified against the specific application schematic.

Q2: What is the primary difference between AD8056ANZ and AD8072JNZ?

A: AD8056ANZ is a voltage feedback amplifier with 1400V/µs slew rate and 300 MHz bandwidth, classified as Active product. AD8072JNZ is a current feedback amplifier with 500V/µs slew rate and 100 MHz bandwidth, classified as Last Time Buy. The voltage feedback topology of AD8056ANZ provides superior high-frequency performance, while the current feedback topology of AD8072JNZ offers different gain-bandwidth trade-offs. Selection depends on application bandwidth requirements and supply voltage constraints.

Q3: Are there supply voltage compatibility issues when substituting?

A: Yes. The MAX412BCPA operates from 4.8V to 10.5V. The AD8056ANZ requires 8V to 12V minimum, eliminating compatibility with systems operating below 8V. The AD8072JNZ supports ±2.5V to ±6V (dual supply) or 5V to 12V (single supply), providing broader low-voltage compatibility. Circuit redesign or voltage regulation modifications may be necessary depending on the original system power architecture.

Q4: What is the significance of "Last Time Buy" status for AD8072JNZ?

A: Last Time Buy designation indicates that the manufacturer has announced end-of-life for this component. Production will cease after a specified date, and no further manufacturing is planned. Existing inventory from current suppliers will be the final available stock. For applications requiring long-term production continuity, AD8056ANZ (Active status) is the more appropriate choice. AD8072JNZ should be considered only for short-term or legacy system support.

Q5: Do the substitute parts maintain RoHS3 and MSL compliance?

A: Yes. Both AD8056ANZ and AD8072JNZ are RoHS3 compliant and carry MSL-1 (Unlimited) moisture sensitivity ratings, matching the MAX412BCPA specifications. No additional environmental or handling requirements are introduced by substitution.

Q6: What output current limitations should be considered?

A: The MAX412BCPA specifies 35 mA per channel output current. AD8056ANZ provides 60 mA per channel, exceeding this requirement. AD8072JNZ provides 30 mA per channel, which is 5 mA below the original specification. For applications operating near the 35 mA limit, AD8072JNZ requires circuit-level analysis to confirm adequate performance margin or potential redesign of output loading conditions.