MAX992EKA-T Equivalent & Substitute Parts

Part Overview

The MAX992EKA-T is a dual general-purpose comparator manufactured by Analog Devices Inc./Maxim Integrated, featuring CMOS open-drain output with rail-to-rail capability and TTL compatibility in SOT-23-8 surface mount packaging. The device is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. Active substitute parts maintain identical electrical performance while offering improved availability and current product status.

Substiute Parts

MAX992EKA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 1054MAX992EKA-T Datasheet

Current PartRFQ

MAX992EKA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 5360MAX992EKA+T Datasheet

DirectRFQ

HA1631D03TEL-E

Renesas Electronics CorporationIn Stock: 4429HA1631D03TEL-E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX992EKA-T are identified based on strict electrical and mechanical compatibility criteria. The primary substitution logic is based on the following allowed parameters:

Electrical Compatibility Criteria:

• Dual comparator configuration (2 elements)
• Output type: Open-Drain capability with TTL compatibility
• Supply voltage range: Minimum 2.5V ~ 5.5V single supply operation
• Input offset voltage: Maximum 5mV
• Input bias current: Maximum 1pA
• Common-mode rejection ratio: 80dB minimum
• Power supply rejection ratio: 80dB minimum
• Operating temperature range: -40°C ~ 85°C

Mechanical Compatibility Criteria:

• Surface mount packaging
• Pin-compatible or functionally equivalent package footprint
• RoHS3 compliance
• MSL rating of 1 or equivalent

Substitutes are grouped into two categories: direct packaging equivalents (identical SOT-23-8) and functional equivalents (alternative packages meeting all electrical specifications).

Parameter Comparison

Engineering Selection Recommendations

MAX992EKA+T (Direct Substitute - Recommended for Pin-Compatible Replacement)

The MAX992EKA+T is the primary substitute for the obsolete MAX992EKA-T. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical specifications and SOT-23-8 packaging. The MAX992EKA+T is currently in active product status with 5,300 units in stock, providing immediate availability. The only difference is packaging format: MAX992EKA+T is supplied in Tape & Reel (TR) configuration versus the original part's unspecified packaging. This substitute requires no circuit modifications and provides direct pin-for-pin compatibility. ROHS3 compliance and MSL rating of 1 are maintained.

HA1631D03TEL-E (Functional Substitute - Alternative for Design Flexibility)

The HA1631D03TEL-E manufactured by Renesas Electronics Corporation meets all core electrical requirements with identical input offset voltage (5mV), input bias current (1pA), and common-mode/power supply rejection ratios (80dB each). The device operates across -40°C ~ 85°C and maintains ROHS3 compliance with MSL rating of 1. Key differences include: alternative 8-TSSOP packaging (requiring PCB layout modification), extended lower supply voltage limit (1.8V vs. 2.5V minimum), reduced quiescent current (20µA vs. 96µA), and output type specification of Open-Drain with Push-Pull capability. This substitute is suitable for designs where package footprint flexibility exists and lower power consumption is beneficial. PCB redesign is required for package transition.

Frequently Asked Questions (FAQ)

Q: Can MAX992EKA+T be used as a direct replacement for MAX992EKA-T without circuit modifications?

A: Yes. The MAX992EKA+T is pin-compatible and electrically identical to the MAX992EKA-T. Both devices feature SOT-23-8 packaging, identical supply voltage ranges (2.5V ~ 5.5V, ±1.25V ~ 2.75V), and matching electrical specifications including 5mV input offset voltage, 1pA input bias current, and 80dB CMRR/PSRR. No circuit modifications are required.

Q: What are the key differences between MAX992EKA+T and HA1631D03TEL-E?

A: The primary differences are packaging format and quiescent current. MAX992EKA+T uses SOT-23-8 packaging identical to the original part, while HA1631D03TEL-E uses 8-TSSOP packaging requiring PCB layout changes. HA1631D03TEL-E has lower quiescent current (20µA vs. 96µA) and supports lower minimum supply voltage (1.8V vs. 2.5V). Both maintain identical input offset voltage, input bias current, and rejection ratios.

Q: Is the HA1631D03TEL-E suitable for existing PCB designs using SOT-23-8 footprints?

A: No. The HA1631D03TEL-E uses 8-TSSOP packaging with different pin spacing and footprint dimensions (0.173" width, 4.40mm). PCB layout redesign is required for this substitute. For direct PCB compatibility without layout modifications, use MAX992EKA+T.

Q: Are both substitute parts RoHS3 compliant?

A: Yes. Both MAX992EKA+T and HA1631D03TEL-E are ROHS3 compliant with MSL rating of 1 (unlimited moisture sensitivity level), matching the compliance profile of the original MAX992EKA-T.

Q: What is the availability status of these substitutes?

A: MAX992EKA+T is in active product status with 5,300 units in stock. HA1631D03TEL-E is also in active product status with 4,359 units in stock. Both provide immediate availability compared to the obsolete MAX992EKA-T.

Q: Can these parts be used interchangeably in dual-supply applications?

A: Yes. Both substitutes support dual-supply operation (±1.25V ~ 2.75V) identical to the original MAX992EKA-T, maintaining full compatibility across single-supply and dual-supply circuit configurations within the specified voltage ranges.