MAX412BCSA Equivalent & Substitute Parts

Part Overview

The MAX412BCSA is a general-purpose operational amplifier featuring dual circuits in an 8-SOIC surface mount package, manufactured by Analog Devices Inc./Maxim Integrated. This device is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The MAX412BCSA 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, suitable for general-purpose amplification applications requiring moderate bandwidth and low input bias current.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Slew Rate	4.5	V/µs
Gain Bandwidth Product	28	MHz
Current - Input Bias	80	nA
Voltage - Input Offset	120	µV
Current - Supply (per Channel)	2.5	mA
Current - Output / Channel	35	mA
Voltage - Supply Span (Min)	4.8	V
Voltage - Supply Span (Max)	10.5	V
Operating Temperature	0 to 70	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Product Status	Obsolete	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the MAX412BCSA is determined by compatibility across the following critical parameters: package type (8-SOIC surface mount), dual-circuit configuration, supply voltage range overlap, and functional amplifier classification. The substitute parts are grouped into two categories based on their electrical characteristics and product status:

Category 1: Direct Functional Equivalent MAX412BCSA+ maintains identical electrical specifications and amplifier type classification (general purpose) with the same 8-SOIC package. This part differs only in packaging format (Tube vs. original specification) and product status (Active vs. Obsolete), making it a direct replacement.

Category 2: Performance-Enhanced Substitutes AD8058ARZ-REEL7, AD8002ARZ-R7, AD8072JRZ-REEL7, and TS522IDT offer alternative amplifier topologies (voltage feedback, current feedback, and audio) with enhanced performance characteristics. These parts maintain the 8-SOIC package and dual-circuit configuration but feature different slew rates, bandwidth specifications, and supply voltage requirements. Substitution within this category requires verification that the application tolerates the specified electrical parameter variations.

Parameter Comparison

Parameter	MAX412BCSA	MAX412BCSA+	AD8058ARZ-REEL7	AD8002ARZ-R7	AD8072JRZ-REEL7	TS522IDT
Amplifier Type	General Purpose	General Purpose	Voltage Feedback	Current Feedback	Current Feedback	Audio
Number of Circuits	2	2	2	2	2	2
Slew Rate (V/µs)	4.5	4.5	1150	1200	500	7
Gain Bandwidth Product (MHz)	28	28	—	—	—	15
-3dB Bandwidth (MHz)	—	—	325	600	100	—
Current - Input Bias (nA)	80	80	500	5000	—	250
Voltage - Input Offset (µV)	120	120	1000	2000	—	850
Current - Supply (mA)	2.5	2.5	14	10	3.5	4
Current - Output / Channel (mA)	35	35	—	70	30	37
Voltage - Supply Span Min (V)	4.8	4.8	3	6	±2.5	5
Voltage - Supply Span Max (V)	10.5	10.5	12	12	±6	30
Operating Temperature (°C)	0 to 70	0 to 70	-40 to 85	-40 to 85	—	-40 to 125
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Product Status	Obsolete	Active	Active	Active	Last Time Buy	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (No Design Modification Required): MAX412BCSA+ is the recommended substitute when maintaining identical electrical performance and operating specifications. This part carries Active product status, ensuring long-term availability and supply chain continuity. Both parts are ROHS3 compliant with identical moisture sensitivity levels (MSL 1 - Unlimited).

For Performance-Enhanced Applications: Selection among AD8058ARZ-REEL7, AD8002ARZ-R7, AD8072JRZ-REEL7, and TS522IDT depends on application-specific requirements:

AD8058ARZ-REEL7 (Voltage Feedback Amplifier) provides significantly higher slew rate (1150V/µs) and bandwidth (325 MHz) with extended operating temperature range (-40°C to 85°C). This part supports lower minimum supply voltage (3V) and higher maximum supply voltage (12V) compared to the original specification. Active product status ensures availability.

AD8002ARZ-R7 (Current Feedback Amplifier) offers the highest slew rate (1200V/µs) and bandwidth (600 MHz) among substitutes, with higher output current capability (70 mA per channel). Minimum supply voltage requirement is 6V. Active product status and ROHS3 compliance are confirmed.

AD8072JRZ-REEL7 (Current Feedback Video Amplifier) carries Last Time Buy status, indicating limited future availability. This part provides moderate performance enhancement (500V/µs slew rate, 100 MHz bandwidth) with lower supply current (3.5 mA) compared to the original specification.

TS522IDT (Audio Amplifier) is qualified to AEC-Q100 automotive standards with extended operating temperature range (-40°C to 125°C). This part supports the widest supply voltage range (5V to 30V) and maintains Active product status. Slew rate (7V/µs) and gain bandwidth product (15 MHz) are comparable to the original specification.

Frequently Asked Questions (FAQ)

Q: Can MAX412BCSA+ be used as a direct drop-in replacement for MAX412BCSA? A: Yes. MAX412BCSA+ maintains identical electrical specifications, dual-circuit configuration, and 8-SOIC package. The only differences are packaging format (Tube vs. original) and product status (Active vs. Obsolete). No circuit modifications are required.

Q: What are the key differences between the general-purpose MAX412BCSA and the performance-enhanced substitutes? A: The MAX412BCSA operates at 4.5V/µs slew rate with 28 MHz gain bandwidth product. AD8058ARZ-REEL7 and AD8002ARZ-R7 provide significantly higher slew rates (1150V/µs and 1200V/µs respectively) and bandwidth (325 MHz and 600 MHz), suitable for high-speed applications. AD8072JRZ-REEL7 and TS522IDT offer moderate performance enhancement with specialized topologies (current feedback and audio amplification).

Q: Are all substitute parts compatible with the 8-SOIC package footprint? A: Yes. All listed substitute parts use the 8-SOIC (0.154", 3.90mm Width) package, ensuring mechanical and electrical compatibility with existing PCB layouts designed for MAX412BCSA.

Q: What supply voltage considerations apply when selecting substitutes? A: MAX412BCSA operates within 4.8V to 10.5V. AD8058ARZ-REEL7 supports 3V to 12V (lower minimum, higher maximum). AD8002ARZ-R7 requires 6V to 12V (higher minimum). AD8072JRZ-REEL7 supports ±2.5V to ±6V (dual supply). TS522IDT supports 5V to 30V (widest range). Verify supply voltage compatibility with your application before substitution.

Q: Which substitute offers the best long-term availability? A: MAX412BCSA+, AD8058ARZ-REEL7, AD8002ARZ-R7, and TS522IDT all carry Active product status, ensuring continued manufacturing and supply. AD8072JRZ-REEL7 carries Last Time Buy status, indicating limited future availability and should be avoided for new long-term designs.

Q: Do all substitutes maintain ROHS3 compliance and automotive qualification? A: All listed parts are ROHS3 compliant. TS522IDT additionally carries AEC-Q100 automotive qualification, making it suitable for automotive applications requiring this certification.

Q: What is the impact of higher input bias current in substitute parts? A: MAX412BCSA specifies 80 nA input bias current. AD8058ARZ-REEL7 (500 nA) and TS522IDT (250 nA) have higher input bias current, which may affect circuit performance in high-impedance applications. AD8002ARZ-R7 (5 µA) has significantly higher input bias current and should be evaluated carefully for precision applications.

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