MAX903ESA Equivalent & Substitute Parts

Part Overview

The MAX903ESA is a single-channel comparator with integrated latch functionality, packaged in 8-SOIC surface mount configuration. This device operates across single supply (5V to 10V) and dual supply (±2.5V to ±5V) ranges, making it suitable for precision voltage comparison and signal conditioning applications. The part is currently listed as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Substiute Parts

MAX903ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 1483MAX903ESA Datasheet

Current PartRFQ

MAX903ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1997MAX903ESA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX903ESA is determined by strict equivalence across the following critical parameters:

• Functional Architecture: Single-channel comparator with integrated latch
• Output Logic Family: TTL-compatible output
• Supply Voltage Range: 5V ~ 10V (single supply) and ±2.5V ~ ±5V (dual supply)
• Package Footprint: 8-SOIC surface mount configuration
• Electrical Performance: Input offset voltage, input bias current, quiescent current, and frequency response characteristics
• Operating Temperature Range: -40°C ~ 85°C

The MAX903ESA+ meets all substitution criteria, maintaining identical electrical specifications and package compatibility while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The MAX903ESA+ is the direct functional equivalent of the MAX903ESA. Both devices are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical specifications, pin configuration, and package footprint.

The primary distinction between these parts is product lifecycle status and regulatory compliance. The MAX903ESA is classified as obsolete, while the MAX903ESA+ maintains active product status with ROHS3 compliance. For new designs or ongoing production requiring regulatory adherence to RoHS3 standards, the MAX903ESA+ is the appropriate selection. Both parts maintain equivalent REACH and ECCN classifications.

Frequently Asked Questions (FAQ)

Q: Can MAX903ESA+ be used as a direct replacement for MAX903ESA in existing designs?

A: Yes. The MAX903ESA+ is electrically and mechanically identical to the MAX903ESA. Pin configuration, package footprint (8-SOIC), and all electrical parameters are equivalent. No circuit modifications are required.

Q: What is the difference between MAX903ESA and MAX903ESA+?

A: The primary differences are product status and RoHS compliance. The MAX903ESA is obsolete and RoHS non-compliant, while the MAX903ESA+ is an active product with ROHS3 compliance. Electrical performance and packaging are identical.

Q: Are there any packaging differences between these parts?

A: The MAX903ESA is supplied in standard packaging, while the MAX903ESA+ is supplied in tube packaging. Both use the same 8-SOIC surface mount package. Tube packaging does not affect electrical performance or board-level compatibility.

Q: What supply voltage configurations does this comparator support?

A: The MAX903ESA and MAX903ESA+ support both single supply (5V to 10V) and dual supply (±2.5V to ±5V) operation, providing flexibility for various circuit topologies.

Q: Is this comparator suitable for high-speed applications?

A: This device is specified for general-purpose voltage comparison with TTL-compatible output. Propagation delay specifications are not provided in the available data. Consult detailed datasheets for timing-critical applications.