MAX975ESA Equivalent & Substitute Parts

Part Overview

The MAX975ESA is a general-purpose CMOS comparator with rail-to-rail output and TTL compatibility, housed in an 8-SOIC surface mount package. This device is currently classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity. The MAX975ESA remains functionally viable for applications requiring single-channel comparison with specified electrical performance within the -40°C to 85°C operating range.

Substiute Parts

MAX975ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 820MAX975ESA Datasheet

Current PartRFQ

MAX975ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3781MAX975ESA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX975ESA is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute must maintain identical specifications for supply voltage range, input offset voltage, input bias current, quiescent current, CMRR/PSRR performance, propagation delay, hysteresis characteristics, operating temperature range, and package configuration. The 8-SOIC surface mount package is mandatory for mechanical compatibility. All substitute parts must be single-element general-purpose comparators with CMOS output, rail-to-rail capability, and TTL compatibility.

Parameter Comparison

Engineering Selection Recommendations

The MAX975ESA+ serves as the direct substitute for the obsolete MAX975ESA. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical specifications across all measured parameters. The primary distinction is product status: the MAX975ESA is obsolete while the MAX975ESA+ is actively produced and supported. The MAX975ESA+ additionally meets ROHS3 compliance requirements, whereas the original MAX975ESA does not. For new designs or production continuity, the MAX975ESA+ is the appropriate selection due to its active product status and enhanced regulatory compliance. Both parts maintain identical functional performance and package compatibility, ensuring direct substitution without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can MAX975ESA+ be used as a direct replacement for MAX975ESA? A: Yes. The MAX975ESA+ is electrically and mechanically identical to the MAX975ESA across all specified parameters, including supply voltage, input offset voltage, bias current, propagation delay, hysteresis, and operating temperature range. Both use the 8-SOIC surface mount package with identical pinout and footprint.

Q: What is the primary reason to transition from MAX975ESA to MAX975ESA+? A: The MAX975ESA is classified as obsolete, while the MAX975ESA+ is an active product with ongoing manufacturer support. The MAX975ESA+ also meets ROHS3 compliance standards. For production continuity and regulatory alignment, the MAX975ESA+ is the recommended choice.

Q: Are there any performance differences between these parts? A: No. Both parts deliver identical electrical performance: 2.7V to 5.25V supply range, 2mV maximum input offset voltage at 5V, 0.1µA maximum input bias current, 500µA maximum quiescent current, 90dB CMRR and PSRR, 820ns maximum propagation delay, and 4mV hysteresis.

Q: Is the 8-SOIC package mandatory for substitution? A: Yes. The 8-SOIC (0.154", 3.90mm width) surface mount package is a critical parameter for mechanical and electrical compatibility. Any substitute must use this identical package configuration.

Q: What compliance certifications differ between the two parts? A: The MAX975ESA+ meets ROHS3 compliance, while the original MAX975ESA is RoHS non-compliant. Both parts are REACH Unaffected and classified under ECCN EAR99.