MAX9051AESA Equivalent & Substitute Parts

Part Overview

The MAX9051AESA is a single-channel comparator with integrated voltage reference manufactured by Analog Devices Inc./Maxim Integrated. This device features CMOS push-pull output with rail-to-rail capability and TTL compatibility, housed in an 8-SOIC surface mount package. The part is classified as obsolete, making identification of active equivalent alternatives essential for ongoing production and design continuity. Substitute parts must maintain identical electrical performance and package specifications to ensure direct replacement capability.

Substiute Parts

MAX9051AESA

Analog Devices Inc./Maxim IntegratedIn Stock: 1204MAX9051AESA Datasheet

Current PartRFQ

MAX9051AESA+

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

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX9051AESA is determined by strict equivalence across the following critical parameters:

Electrical Performance Criteria: Supply voltage range (2.7V ~ 5.5V), input offset voltage (5mV @ 5V), input bias current (1pA @ 5V), output current (8mA typical), quiescent current (72µA maximum), CMRR/PSRR (80dB), propagation delay (450ns maximum), and hysteresis (±3mV) must remain unchanged.

Mechanical & Package Criteria: Package type must be 8-SOIC with identical 0.154" (3.90mm) width. Mounting type must be surface mount. Pin configuration and footprint compatibility are mandatory.

Compliance & Environmental Criteria: RoHS3 compliance and MSL Level 1 rating must be maintained. Operating temperature range of -40°C ~ 85°C must be preserved.

The substitute part MAX9051AESA+ meets all these criteria with identical electrical specifications and package configuration, differing only in product status (active versus obsolete) and packaging format (tube versus unspecified).

Parameter Comparison

Engineering Selection Recommendations

The MAX9051AESA+ is a direct parametric equivalent to the MAX9051AESA. All electrical specifications, package dimensions, mounting type, and compliance certifications are identical. The primary distinction is product lifecycle status: the MAX9051AESA is obsolete while the MAX9051AESA+ maintains active status with Analog Devices Inc./Maxim Integrated.

For new designs and ongoing production requiring this comparator function, the MAX9051AESA+ is the appropriate selection. Both parts carry ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with modern manufacturing and environmental standards. The tube packaging format of the MAX9051AESA+ is standard for active production components and presents no technical limitation for surface mount assembly processes.

Frequently Asked Questions (FAQ)

Q: Can MAX9051AESA+ be used as a direct replacement for MAX9051AESA in existing designs?

A: Yes. The MAX9051AESA+ is electrically and mechanically identical to the MAX9051AESA. All electrical parameters, package specifications, and pin configurations match exactly. Direct substitution is supported without circuit modification.

Q: What is the difference between MAX9051AESA and MAX9051AESA+?

A: The parts are parametrically equivalent. The MAX9051AESA is classified as obsolete, while MAX9051AESA+ is an active product. The MAX9051AESA+ is supplied in tube packaging format, which is standard for active production. No electrical or functional differences exist.

Q: Are both parts RoHS compliant?

A: Yes. Both MAX9051AESA and MAX9051AESA+ are ROHS3 compliant with MSL Level 1 rating, meeting current environmental and manufacturing standards.

Q: What is the 8-SOIC package specification?

A: The 8-SOIC package is a surface mount small outline integrated circuit with 8 pins. The package width is 0.154 inches (3.90mm). This is the standard package for both the main part and substitute.

Q: Can these parts operate at different supply voltages?

A: Both parts operate across the identical supply voltage range of 2.7V to 5.5V for single or dual supply configurations. No voltage-dependent substitution restrictions apply.

Q: What is the propagation delay specification?

A: The maximum propagation delay for both parts is 450 nanoseconds. This parameter defines the time interval between input signal transition and output response.

Q: Are there any temperature range limitations for substitution?

A: No. Both parts operate across the identical temperature range of -40°C to 85°C. Temperature-dependent substitution restrictions do not apply.