MAX9052AESA Equivalent & Substitute Parts

Part Overview

The MAX9052AESA is a dual-channel comparator with integrated voltage reference manufactured by Analog Devices Inc./Maxim Integrated. This CMOS device features push-pull, rail-to-rail, and TTL-compatible outputs, designed for precision analog signal comparison applications. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. Substitute parts must maintain electrical compatibility across supply voltage, input offset, bias current, output characteristics, and thermal operating range while accommodating packaging and availability constraints.

Substiute Parts

MAX9052AESA

Analog Devices Inc./Maxim IntegratedIn Stock: 844MAX9052AESA Datasheet

Current PartRFQ

MAX9052AESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2046MAX9052AESA+ Datasheet

DirectRFQ

MAX9051AESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 853MAX9051AESA+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MAX9052AESA is categorized into two groups based on electrical and mechanical compatibility:

Direct Manufacturer Substitute (Packaging Variant): MAX9052AESA+ maintains identical electrical specifications and package form factor. The primary difference is packaging format (Tube vs. unspecified original packaging) and product status transition from Obsolete to Active. This part is a direct replacement with no functional or parametric deviation.

Parametric Equivalent (Single-Channel Variant): MAX9051AESA+ shares the same output type, supply voltage range, input offset, bias current, CMRR/PSRR, propagation delay, hysteresis, operating temperature, package, and mounting type. The critical difference is the number of integrated comparator elements: MAX9051AESA+ contains 1 comparator versus 2 in the MAX9052AESA. Additionally, quiescent current differs (72µA vs. 85µA). This part is suitable only for applications requiring single-channel comparison functionality.

Both substitute parts are ROHS3 compliant, MSL 1 rated, and manufactured by the same supplier, ensuring regulatory and environmental consistency.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Dual-Channel Applications): Select MAX9052AESA+ when the design requires dual-channel comparator functionality with identical electrical performance. This part is preferred due to its Active product status, ensuring long-term availability and manufacturing support. The transition from Obsolete to Active status eliminates supply chain risk. Tube packaging is standard for production environments and does not affect electrical or mechanical compatibility.

For Single-Channel Applications: MAX9051AESA+ is suitable only when the application circuit requires a single comparator channel. The 13µA reduction in maximum quiescent current (72µA vs. 85µA) provides marginal power consumption benefit in battery-powered or low-power designs. This part maintains all critical electrical parameters including input offset, bias current, output characteristics, and timing specifications. However, PCB layout and schematic modifications are required to accommodate the single-channel architecture.

Compliance and Certification: Both substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing processes and long-term storage without moisture sensitivity constraints. Selection between direct and parametric equivalents depends solely on application channel requirements, not on regulatory or environmental factors.

Frequently Asked Questions (FAQ)

Q: Can MAX9052AESA+ be used as a direct drop-in replacement for MAX9052AESA? A: Yes. MAX9052AESA+ is electrically and mechanically identical to MAX9052AESA. The only differences are packaging format (Tube) and product status (Active vs. Obsolete). No circuit modifications are required.

Q: What is the primary limitation of MAX9051AESA+ as a substitute? A: MAX9051AESA+ contains a single comparator element instead of two. It is suitable only for applications requiring single-channel comparison. Dual-channel designs require MAX9052AESA+ or equivalent dual-channel devices.

Q: Are there differences in supply voltage compatibility between the three parts? A: No. All three parts operate across the identical supply voltage range of 2.7V to 5.5V, supporting both single and dual supply configurations within this range.

Q: Does the quiescent current difference between MAX9052AESA+ and MAX9051AESA+ affect circuit design? A: The 13µA difference (85µA vs. 72µA) is negligible in most applications. It becomes relevant only in ultra-low-power designs where every microampere of standby current is critical. For standard applications, this difference does not warrant design changes.

Q: Are all three parts suitable for the same PCB footprint? A: Yes. All three parts use the 8-SOIC package with identical dimensions (0.154" width, 3.90mm). PCB footprints are interchangeable. However, schematic and layout modifications are necessary when switching from dual-channel (MAX9052) to single-channel (MAX9051) architectures due to different pin assignments and functional requirements.

Q: What is the significance of the Active product status for MAX9052AESA+? A: Active status indicates ongoing manufacturing and long-term availability commitment from Analog Devices. This eliminates obsolescence risk and ensures consistent supply for production and future design iterations. The Obsolete status of the original MAX9052AESA makes transition to MAX9052AESA+ necessary for new designs and ongoing production support.

Q: Are moisture sensitivity levels identical across all three parts? A: Yes. All three parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints. Standard handling and storage procedures apply without special desiccant or humidity control requirements.