MAX908CSD-T Equivalent & Substitute Parts

Part Overview

The MAX908CSD-T is a general-purpose comparator IC manufactured by Analog Devices Inc./Maxim Integrated, featuring four independent comparator elements in a 14-SOIC surface-mount package. This device is classified as obsolete, which necessitates identification of active equivalent parts to ensure design continuity and procurement availability. The MAX908CSD-T operates across a supply voltage range of 4.5V to 11V with TTL-compatible output stages, making it suitable for signal conditioning and threshold detection applications in legacy and new designs requiring pin-compatible alternatives.

Substiute Parts

MAX908CSD-T

Analog Devices Inc./Maxim IntegratedIn Stock: 884MAX908CSD-T Datasheet

Current PartRFQ

MAX908CSD+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3781MAX908CSD+T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX908CSD-T is determined by strict equivalence across the following critical parameters:

• Number of Comparator Elements: 4 independent comparators
• Output Configuration: TTL-compatible output stage
• Supply Voltage Range: 4.5V to 11V operation
• Package Type: 14-SOIC surface-mount form factor
• Electrical Performance: Input offset voltage, input bias current, quiescent current, CMRR/PSRR, and propagation delay specifications
• Operating Temperature Range: 0°C to 70°C
• Compliance Standards: ROHS3 compliance and MSL rating

The MAX908CSD+T qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction is product status and packaging format, with the substitute part classified as active and available in Tape & Reel (TR) packaging, compared to the obsolete MAX908CSD-T.

Parameter Comparison

Engineering Selection Recommendations

The MAX908CSD+T is the direct equivalent for the obsolete MAX908CSD-T. Both parts maintain identical electrical specifications, pin configuration, and package dimensions. The MAX908CSD+T is classified as an active product with current manufacturing status and higher inventory availability (3689 Pcs vs. 832 Pcs), ensuring long-term procurement reliability.

Both parts satisfy ROHS3 compliance requirements and carry MSL Level 1 ratings, indicating compatibility with standard surface-mount assembly processes without moisture-related constraints. The substitution is electrically and mechanically transparent, requiring no circuit modifications or design re-qualification.

Frequently Asked Questions (FAQ)

Q: Are the MAX908CSD-T and MAX908CSD+T pin-compatible? A: Yes. Both devices feature identical 14-SOIC package geometry with matching pin assignments and electrical characteristics. Direct socket substitution is supported without circuit modifications.

Q: What is the primary difference between these parts? A: The MAX908CSD-T is obsolete, while the MAX908CSD+T is an active product. The substitute part is supplied in Tape & Reel (TR) packaging format, standard for high-volume production environments.

Q: Do both parts meet the same compliance standards? A: Yes. Both the MAX908CSD-T and MAX908CSD+T are ROHS3 compliant with MSL Level 1 ratings, ensuring equivalent environmental and regulatory compliance.

Q: Can the MAX908CSD+T be used in existing designs originally specified for the MAX908CSD-T? A: Yes. Identical electrical performance, supply voltage range, operating temperature specifications, and package configuration enable direct substitution without design changes or performance degradation.

Q: What are the key electrical parameters that define substitution eligibility? A: Substitution is determined by matching the number of comparator elements (4), output type (TTL), supply voltage range (4.5V ~ 11V), input offset voltage (2mV @ 5V), input bias current (0.3µA @ 5V), quiescent current (1mA), CMRR/PSRR (86.02dB), propagation delay (50ns), and operating temperature range (0°C ~ 70°C).

Q: Is the Tape & Reel packaging of the MAX908CSD+T compatible with standard pick-and-place assembly equipment? A: Yes. Tape & Reel (TR) packaging is the standard format for automated surface-mount assembly processes and is compatible with all conventional production equipment.