MAX414BCSD+ Equivalent & Substitute Parts

Part Overview

The MAX414BCSD+ is a general-purpose operational amplifier integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. This device contains four independent amplifier circuits in a 14-SOIC surface-mount package and is designed for general-purpose signal conditioning and amplification applications. The MAX414BCSD+ is classified as an obsolete product, making equivalent and substitute parts necessary for ongoing design support, production continuity, and system maintenance. Substitute parts must maintain compatibility with the 14-SOIC package format and support the electrical operating parameters of the original design.

Key Parameters

Parameter	MAX414BCSD+	Unit
Amplifier Type	General Purpose	—
Number of Circuits	4	Channels
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Slew Rate	4.5	V/µs
Gain Bandwidth Product	28	MHz
Current - Input Bias	80	nA
Voltage - Input Offset	150	µV
Current - Supply	2.5	mA (x4 Channels)
Current - Output / Channel	35	mA
Voltage - Supply Span (Min)	4.8	V
Voltage - Supply Span (Max)	10.5	V
Operating Temperature	0°C ~ 70°C	—
Product Status	Obsolete	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the MAX414BCSD+ are selected based on strict compatibility criteria derived from the provided electrical and mechanical parameters. The primary substitution logic is organized as follows:

Package Compatibility: All substitute parts must use the 14-SOIC (0.154", 3.90mm Width) surface-mount package to ensure direct PCB layout compatibility without redesign.

Circuit Count: All substitute parts contain four independent amplifier circuits, maintaining the same functional density as the original device.

Supply Voltage Range: Substitute parts must operate within or encompass the original supply voltage range of 4.8 V to 10.5 V. Parts with extended supply ranges (such as 1.8 V to 5.5 V or 4 V to 12 V) are acceptable if the minimum and maximum values bracket or match the original specification.

Amplifier Type Consideration: The MAX414BCSD+ is a general-purpose amplifier. Substitute parts may be general-purpose or current-feedback amplifiers, provided they meet the electrical performance requirements and package constraints. Current-feedback amplifiers offer higher slew rates and bandwidth but are functionally compatible in general-purpose applications.

Compliance and Status: All substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, matching the original device's environmental compliance profile.

The following substitute parts meet these criteria:

MAX4472ESD+ (General Purpose, Rail-to-Rail, Active Status)
AD8004ARZ-14 (Current Feedback, Active Status)
AD8004ARZ-14-REEL7 (Current Feedback, Active Status, Reel Packaging)
LT1397CS#PBF (Current Feedback, Active Status)
LT1397CS#TRPBF (Current Feedback, Active Status, Tape & Reel Packaging)

Parameter Comparison

Parameter	MAX414BCSD+	MAX4472ESD+	AD8004ARZ-14	AD8004ARZ-14-REEL7	LT1397CS#PBF	LT1397CS#TRPBF	Unit
Amplifier Type	General Purpose	General Purpose	Current Feedback	Current Feedback	Current Feedback	Current Feedback	—
Number of Circuits	4	4	4	4	4	4	Channels
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	—
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	—
Slew Rate	4.5	0.002	3000	3000	800	800	V/µs
Gain Bandwidth Product	28	9	30	30	—	—	MHz
Current - Input Bias	80	200	40000	40000	10000	10000	nA
Voltage - Input Offset	150	500	1000	1000	1000	1000	µV
Current - Supply	2.5	0.75	14	14	4.6	4.6	mA
Current - Output / Channel	35	36	50	50	80	80	mA
Voltage - Supply Span (Min)	4.8	1.8	4	4	4	4	V
Voltage - Supply Span (Max)	10.5	5.5	12	12	12	12	V
Operating Temperature	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	0°C ~ 70°C	—
Product Status	Obsolete	Active	Active	Active	Active	Active	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1	1	1	1	1	1	—

Engineering Selection Recommendations

Primary Substitute: MAX4472ESD+

The MAX4472ESD+ is the recommended primary substitute for the MAX414BCSD+. Both devices are general-purpose operational amplifiers with four circuits in a 14-SOIC package. The MAX4472ESD+ is an active product with extended operating temperature range (-40°C to 85°C) compared to the original (0°C to 70°C). The MAX4472ESD+ features rail-to-rail output capability and lower supply current (0.75 mA versus 2.5 mA), making it suitable for power-sensitive applications. The supply voltage range of 1.8 V to 5.5 V encompasses the lower portion of the original specification (4.8 V to 10.5 V); designs operating within 4.8 V to 5.5 V are fully compatible. ROHS3 compliance and MSL 1 rating match the original device.

Secondary Substitutes: AD8004ARZ-14 and AD8004ARZ-14-REEL7

The AD8004ARZ-14 and AD8004ARZ-14-REEL7 are current-feedback amplifiers with four circuits in a 14-SOIC package. These devices are active products with extended operating temperature range (-40°C to 85°C). Current-feedback architecture provides significantly higher slew rate (3000 V/µs) and gain bandwidth product (30 MHz), exceeding the original device performance. Supply voltage range (4 V to 12 V) fully encompasses the original specification. Higher input bias current (40 µA) and output current per channel (50 mA) are trade-offs of the current-feedback topology. The AD8004ARZ-14-REEL7 variant provides tape and reel packaging for automated assembly. Both variants are ROHS3 compliant with MSL 1 rating.

Tertiary Substitutes: LT1397CS#PBF and LT1397CS#TRPBF

The LT1397CS#PBF and LT1397CS#TRPBF are current-feedback amplifiers from the LT® series with four circuits in a 14-SOIC package. These devices are active products with operating temperature range matching the original (0°C to 70°C). Current-feedback architecture provides high slew rate (800 V/µs) and -3dB bandwidth (400 MHz). Supply voltage range (4 V to 12 V) fully encompasses the original specification. Output current per channel (80 mA) exceeds the original device. The LT1397CS#TRPBF variant provides tape and reel packaging. Both variants are ROHS3 compliant with MSL 1 rating.

Selection Criteria Summary:

For general-purpose applications with power efficiency priority: Select MAX4472ESD+
For high-speed or high-slew-rate applications: Select AD8004ARZ-14, AD8004ARZ-14-REEL7, LT1397CS#PBF, or LT1397CS#TRPBF
For automated assembly with reel packaging: Select AD8004ARZ-14-REEL7 or LT1397CS#TRPBF
For extended temperature operation: Select AD8004ARZ-14 or AD8004ARZ-14-REEL7 (-40°C to 85°C)
For temperature range matching the original: Select LT1397CS#PBF or LT1397CS#TRPBF (0°C to 70°C)

All substitute parts maintain ROHS3 compliance and MSL 1 moisture sensitivity rating, ensuring compatibility with modern manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q1: Can the MAX4472ESD+ be used as a direct replacement for the MAX414BCSD+ in all applications?

A: The MAX4472ESD+ is compatible with applications operating within the overlapping supply voltage range (4.8 V to 5.5 V). The MAX4472ESD+ features lower slew rate (0.002 V/µs) and lower gain bandwidth product (9 kHz) compared to the original MAX414BCSD+ (4.5 V/µs slew rate, 28 MHz bandwidth). Applications requiring the original performance specifications should select current-feedback alternatives such as AD8004ARZ-14 or LT1397CS#PBF.

Q2: What is the difference between the AD8004ARZ-14 and AD8004ARZ-14-REEL7?

A: Both devices are electrically identical current-feedback amplifiers with four circuits in a 14-SOIC package. The primary difference is packaging format: AD8004ARZ-14 is supplied in tube packaging, while AD8004ARZ-14-REEL7 is supplied in cut tape and Digi-Reel® format. The reel variant is optimized for automated pick-and-place assembly processes.

Q3: Why do the current-feedback substitutes (AD8004, LT1397) have higher input bias current than the original MAX414BCSD+?

A: Current-feedback amplifier topology inherently exhibits higher input bias current (typically in the microampere range) compared to general-purpose voltage-feedback amplifiers (typically in the nanoampere range). This is a fundamental characteristic of the current-feedback architecture and does not indicate a defect. Applications sensitive to input bias current should select the MAX4472ESD+ general-purpose alternative.

Q4: Are all substitute parts compatible with the 14-SOIC package footprint of the MAX414BCSD+?

A: Yes. All substitute parts use the 14-SOIC (0.154", 3.90mm Width) package format, ensuring direct PCB footprint compatibility without layout redesign. Pin assignments and functional pinout are compatible across all listed substitutes.

Q5: What is the significance of the "Active" product status for substitute parts?

A: Active product status indicates that the substitute part is currently manufactured and supported by the supplier, ensuring long-term availability and continued technical support. The original MAX414BCSD+ is classified as obsolete, meaning it is no longer manufactured. Selecting active substitute parts ensures design continuity and production support for future manufacturing runs.

Q6: Do all substitute parts meet the same environmental compliance standards as the MAX414BCSD+?

A: Yes. All substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original device's environmental compliance profile. All parts are REACH unaffected and carry EAR99 export classification.

Q7: Which substitute part offers the best performance for high-frequency signal conditioning applications?

A: The LT1397CS#PBF and LT1397CS#TRPBF current-feedback amplifiers provide the highest -3dB bandwidth (400 MHz) and high slew rate (800 V/µs), making them optimal for high-frequency applications. The AD8004ARZ-14 and AD8004ARZ-14-REEL7 provide even higher slew rate (3000 V/µs) for applications requiring extremely fast transient response.

Q8: Can the MAX4472ESD+ operate at the full 10.5 V maximum supply voltage of the original MAX414BCSD+?

A: No. The MAX4472ESD+ has a maximum supply voltage of 5.5 V, which is below the original device's 10.5 V maximum. Applications requiring operation above 5.5 V must select current-feedback alternatives: AD8004ARZ-14, AD8004ARZ-14-REEL7, LT1397CS#PBF, or LT1397CS#TRPBF, all of which support supply voltages up to 12 V.

Q9: What is the operating temperature range difference between substitute options?

A: The MAX4472ESD+, AD8004ARZ-14, and AD8004ARZ-14-REEL7 support extended operating temperature range (-40°C to 85°C), exceeding the original MAX414BCSD+ specification (0°C to 70°C). The LT1397CS#PBF and LT1397CS#TRPBF match the original temperature range (0°C to 70°C). Applications requiring operation below 0°C or above 70°C should select the extended-range alternatives.

Q10: Is there a substitute part that most closely matches the electrical performance of the original MAX414BCSD+?

A: The AD8004ARZ-14 and AD8004ARZ-14-REEL7 provide the closest performance match with gain bandwidth product of 30 MHz (versus 28 MHz original) and slew rate of 3000 V/µs (exceeding the 4.5 V/µs original). These current-feedback devices maintain four-circuit configuration, 14-SOIC package compatibility, and supply voltage range encompassing the original specification.

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