MAX414CSD+ Equivalent & Substitute Parts Reference

Part Overview

The MAX414CSD+ 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 classified as obsolete. The MAX414CSD+ operates across a supply voltage range of 4.8 V to 10.5 V with a slew rate of 4.5 V/µs and gain bandwidth product of 28 MHz. Due to its obsolete product status, equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and legacy system support.

Key Parameters

Parameter	Value
Manufacturer Part Number	MAX414CSD+
Manufacturer	Analog Devices Inc./Maxim Integrated
Category	Linear, Amplifiers
Amplifier Type	General Purpose
Number of Circuits	4
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

Substitution of the MAX414CSD+ is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 14-SOIC surface-mount package with 0.154" (3.90 mm) width to ensure direct PCB footprint compatibility.

Circuit Count: All substitutes contain four independent amplifier circuits, maintaining functional equivalence in multi-channel applications.

Supply Voltage Range: Substitute parts must operate within overlapping supply voltage specifications. The MAX414CSD+ operates from 4.8 V to 10.5 V. Substitutes with wider supply ranges (4 V to 12 V) are compatible with this specification window.

Operating Temperature Range: The MAX414CSD+ operates from 0°C to 70°C. Substitutes with extended temperature ranges (-40°C to 85°C) are backward-compatible with this specification.

Compliance Standards: All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status, ensuring regulatory and environmental compatibility.

Amplifier Architecture: Substitute parts include both general-purpose and current-feedback amplifier topologies. Current-feedback amplifiers (AD8004ARZ-14, LT1397CS#PBF) offer significantly higher slew rates and bandwidth compared to the general-purpose MAX414CSD+, making them suitable for higher-frequency applications while maintaining four-circuit integration.

Parameter Comparison

Parameter	MAX414CSD+	AD8004ARZ-14	AD8004ARZ-14-REEL7	LT1397CS#PBF	LT1397CS#TRPBF
Amplifier Type	General Purpose	Current Feedback	Current Feedback	Current Feedback	Current Feedback
Number of Circuits	4	4	4	4	4
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Slew Rate	4.5 V/µs	3000 V/µs	3000 V/µs	800 V/µs	800 V/µs
Gain Bandwidth Product	28 MHz	30 MHz	30 MHz	Not Specified	Not Specified
-3dB Bandwidth	Not Specified	250 MHz	250 MHz	400 MHz	400 MHz
Current - Input Bias	80 nA	40 µA	40 µA	10 µA	10 µA
Voltage - Input Offset	150 µV	1 mV	1 mV	1 mV	1 mV
Current - Supply	2.5 mA (x4)	14 mA	14 mA	4.6 mA (x4)	4.6 mA (x4)
Current - Output / Channel	35 mA	50 mA	50 mA	80 mA	80 mA
Voltage - Supply Span (Min)	4.8 V	4 V	4 V	4 V	4 V
Voltage - Supply Span (Max)	10.5 V	12 V	12 V	12 V	12 V
Operating Temperature	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	0°C ~ 70°C
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Replacement with Minimal Design Changes:

The LT1397CS#PBF and LT1397CS#TRPBF are the most conservative substitutes for the MAX414CSD+. Both parts maintain the same operating temperature range (0°C ~ 70°C) as the original device and offer compatible supply voltage specifications. These parts are active products with full ROHS3 compliance and MSL Level 1 rating. The primary difference is packaging format: LT1397CS#PBF is supplied in tube packaging, while LT1397CS#TRPBF is supplied in tape and reel format. Selection between these two depends on production volume and assembly line requirements.

For Applications Requiring Extended Temperature Range:

The AD8004ARZ-14 and AD8004ARZ-14-REEL7 extend the operating temperature range to -40°C ~ 85°C, providing compatibility with industrial and automotive environments. These parts are active products with full regulatory compliance. The AD8004ARZ-14-REEL7 variant is supplied in cut tape and Digi-Reel® format, while AD8004ARZ-14 is supplied in tube packaging. Both variants are functionally identical and differ only in packaging and delivery format.

Compliance and Regulatory Status:

All substitute parts maintain ROHS3 compliance, MSL Level 1 (unlimited moisture sensitivity), and REACH unaffected status. All parts carry EAR99 export classification and HTSUS code 8542.33.0001, ensuring regulatory compatibility with the original MAX414CSD+.

Product Availability:

The MAX414CSD+ is obsolete with limited inventory (800 pieces). All substitute parts are active products with significantly higher inventory levels: AD8004ARZ-14 (2336 pieces), AD8004ARZ-14-REEL7 (1650 pieces), LT1397CS#PBF (3758 pieces), and LT1397CS#TRPBF (2180 pieces). This ensures long-term component availability for production continuity.

Frequently Asked Questions (FAQ)

Q: Can the AD8004ARZ-14 be used as a direct replacement for the MAX414CSD+ without circuit modifications?

A: The AD8004ARZ-14 shares the same 14-SOIC package and four-circuit configuration as the MAX414CSD+. However, the AD8004ARZ-14 is a current-feedback amplifier architecture, while the MAX414CSD+ is a general-purpose amplifier. Current-feedback amplifiers have different frequency response characteristics and require different feedback network design. Circuit simulation and validation are necessary to confirm functional equivalence in your specific application.

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

A: Both parts are functionally identical with the same electrical specifications. The difference is in packaging and delivery format. AD8004ARZ-14 is supplied in tube packaging, while AD8004ARZ-14-REEL7 is supplied in cut tape and Digi-Reel® format. Selection depends on your assembly process requirements and production volume.

Q: Why do the LT1397CS#PBF and LT1397CS#TRPBF have different slew rates compared to the AD8004ARZ-14?

A: Both are current-feedback amplifier architectures but represent different design generations and performance classes. The LT1397 series offers 800 V/µs slew rate with 400 MHz -3dB bandwidth, while the AD8004 series offers 3000 V/µs slew rate with 250 MHz -3dB bandwidth. Selection depends on your application's frequency and transient response requirements.

Q: Are all substitute parts compatible with the same PCB footprint as the MAX414CSD+?

A: Yes. All substitute parts use the 14-SOIC package with 0.154" (3.90 mm) width, ensuring direct PCB footprint compatibility. No layout modifications are required for package placement.

Q: What is the difference between LT1397CS#PBF and LT1397CS#TRPBF?

A: Both parts are functionally identical with the same electrical specifications. LT1397CS#PBF is supplied in tube packaging, while LT1397CS#TRPBF is supplied in tape and reel format. Selection depends on your assembly process and production volume requirements.

Q: Can I use the AD8004ARZ-14 in applications requiring the 0°C ~ 70°C operating temperature range?

A: Yes. The AD8004ARZ-14 operates from -40°C ~ 85°C, which encompasses the 0°C ~ 70°C range of the MAX414CSD+. The extended temperature range provides additional operational margin and is fully compatible with applications designed for the narrower temperature specification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (AD8004ARZ-14, AD8004ARZ-14-REEL7, LT1397CS#PBF, LT1397CS#TRPBF) are ROHS3 compliant with MSL Level 1 rating and REACH unaffected status, matching the regulatory compliance of the MAX414CSD+.

Q: Which substitute part offers the highest output current per channel?

A: The LT1397CS#PBF and LT1397CS#TRPBF offer 80 mA output current per channel, compared to 35 mA for the MAX414CSD+ and 50 mA for the AD8004ARZ-14 variants. This higher output current capability may be beneficial for driving low-impedance loads.

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