MAX479CSD Equivalent & Substitute Parts

Part Overview

The MAX479CSD 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. The MAX479CSD is classified as an obsolete product, necessitating identification of active equivalent and substitute parts for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility while meeting current manufacturing and compliance standards.

Substiute Parts

MAX479CSD

Analog Devices Inc./Maxim IntegratedIn Stock: 12843MAX479CSD Datasheet

Current PartRFQ

LT2179ACS#PBF

Analog Devices Inc.In Stock: 1032LT2179ACS#PBF Datasheet

MFR RecommendedRFQ

LT2179ACS#TRPBF

Analog Devices Inc.In Stock: 720LT2179ACS#TRPBF Datasheet

MFR RecommendedRFQ

NCV33074DR2G

onsemiIn Stock: 3376NCV33074DR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX479CSD is determined by the following critical parameters: four independent amplifier circuits, general-purpose amplifier classification, 14-SOIC package footprint, surface-mount technology, and supply voltage range compatibility. The substitute parts identified fall into two functional categories based on output type and electrical performance characteristics.

Category 1: Rail-to-Rail Output Substitutes LT2179ACS#PBF and LT2179ACS#TRPBF maintain identical slew rate (0.04 V/µs) and gain bandwidth product (85 kHz) specifications. These parts feature rail-to-rail output capability and extended supply voltage range (2.2 V to 36 V). Both are active products with RoHS3 compliance. The primary difference between these two parts is packaging format: tube versus tape & reel.

Category 2: Single-Ended Output Substitute NCV33074DR2G provides significantly enhanced electrical performance with higher slew rate (13 V/µs) and gain bandwidth product (4.5 MHz). This part features single-ended output, automotive-grade qualification (AEC-Q100), and extended operating temperature range (-40°C to 85°C). Supply voltage range extends to 44 V maximum.

Parameter Comparison

Engineering Selection Recommendations

For Direct Functional Replacement (Identical Electrical Performance): LT2179ACS#PBF and LT2179ACS#TRPBF are primary substitutes for the MAX479CSD. Both parts maintain identical slew rate and gain bandwidth product specifications. Selection between these two depends on procurement and assembly requirements: LT2179ACS#PBF is supplied in tube packaging, while LT2179ACS#TRPBF is supplied in tape & reel format for automated assembly. Both parts are active products with RoHS3 compliance, addressing regulatory requirements that the obsolete MAX479CSD cannot meet.

For Enhanced Performance Applications: NCV33074DR2G provides substantially improved electrical performance with 325× higher slew rate and 52.9× higher gain bandwidth product. This part is suitable for applications requiring faster signal processing and wider bandwidth. The automotive-grade qualification (AEC-Q100) and extended operating temperature range (-40°C to 85°C) make this part appropriate for industrial and automotive environments. Higher supply current consumption (1.9 mA per channel versus 13 µA for MAX479CSD) must be evaluated against application power budget constraints.

Compliance Considerations: All three substitute parts are RoHS3 compliant, addressing environmental and regulatory requirements. The MAX479CSD is RoHS non-compliant and should not be used in new designs subject to RoHS directives. All parts maintain REACH unaffected status and identical ECCN/HTSUS classifications.

Frequently Asked Questions (FAQ)

Q: Can LT2179ACS#PBF and LT2179ACS#TRPBF be used interchangeably with MAX479CSD? A: Yes, both parts are direct functional equivalents. The electrical specifications (slew rate, gain bandwidth product, input bias current, and supply voltage range) are identical. The difference is packaging format: tube versus tape & reel. Both are active products with current manufacturing support.

Q: What is the primary advantage of LT2179ACS over MAX479CSD? A: LT2179ACS parts are active products with RoHS3 compliance, whereas MAX479CSD is obsolete and RoHS non-compliant. For new designs and ongoing production, LT2179ACS provides regulatory compliance and long-term availability assurance.

Q: When should NCV33074DR2G be selected instead of LT2179ACS? A: NCV33074DR2G is selected when applications require higher slew rate (13 V/µs versus 0.04 V/µs) and higher gain bandwidth product (4.5 MHz versus 85 kHz). This part is suitable for faster signal processing applications and automotive environments. Higher supply current consumption must be considered in power-constrained designs.

Q: Are all substitute parts in the same 14-SOIC package? A: Yes, all substitute parts use the 14-SOIC (0.154", 3.90mm width) surface-mount package, ensuring identical PCB footprint compatibility with MAX479CSD designs.

Q: What is the difference between LT2179ACS#PBF and LT2179ACS#TRPBF? A: Both parts have identical electrical specifications and performance. LT2179ACS#PBF is supplied in tube packaging for manual or semi-automated assembly. LT2179ACS#TRPBF is supplied in tape & reel format optimized for high-volume automated assembly processes.

Q: Does NCV33074DR2G require circuit design changes? A: NCV33074DR2G has higher input bias current (100 nA versus 3 nA) and higher input offset voltage (1 mV versus 50 µV). Applications with high-impedance input sources or precision requirements may require circuit optimization. The significantly higher slew rate and bandwidth may require PCB layout review for high-frequency stability.

Q: Are all substitute parts suitable for industrial temperature range applications? A: LT2179ACS parts operate from 0°C to 70°C, matching MAX479CSD temperature range. NCV33074DR2G extends to -40°C to 85°C, providing wider temperature coverage for industrial and automotive applications.