MAX989EUA-T Equivalent & Substitute Parts

Part Overview

The MAX989EUA-T is a dual-channel general-purpose comparator manufactured by Analog Devices Inc./Maxim Integrated. It features CMOS push-pull, rail-to-rail output with TTL compatibility in an 8-uMAX/uSOP surface-mount package. The device operates across a supply voltage range of 2.5V to 5.5V (single supply) or ±1.25V to ±2.75V (dual supply), with a maximum input offset voltage of 5mV and propagation delay of 450ns.

The MAX989EUA-T is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this comparator topology.

Substiute Parts

MAX989EUA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 4232MAX989EUA-T Datasheet

Current PartRFQ

MAX989EUA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 12978MAX989EUA+T Datasheet

Parametric EquivalentRFQ

AZV3002S-13

Diodes IncorporatedIn Stock: 1373AZV3002S-13 Datasheet

MFR RecommendedRFQ

BU7232SFVM-TR

Rohm SemiconductorIn Stock: 4029BU7232SFVM-TR Datasheet

MFR RecommendedRFQ

HA1631D01MMEL-E

Renesas Electronics CorporationIn Stock: 954HA1631D01MMEL-E Datasheet

MFR RecommendedRFQ

LMC6762BIM/NOPB

Texas InstrumentsIn Stock: 1360LMC6762BIM/NOPB Datasheet

MFR RecommendedRFQ

TLV3202AIDGK

Texas InstrumentsIn Stock: 3233TLV3202AIDGK Datasheet

MFR RecommendedRFQ

TLV3202AIDGKR

Texas InstrumentsIn Stock: 17801TLV3202AIDGKR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX989EUA-T is determined by the following critical parameters:

• Output Type Configuration: CMOS push-pull, rail-to-rail, TTL-compatible output
• Dual-Channel Architecture: Two independent comparator elements per package
• Supply Voltage Range: Minimum 2.5V single supply or ±1.25V dual supply capability
• Input Offset Voltage: Maximum 5mV specification
• Input Bias Current: Maximum 1pA specification
• Quiescent Current: Maximum 24µA specification
• CMRR / PSRR Performance: Minimum 80dB common-mode and power-supply rejection
• Propagation Delay: Maximum 450ns specification
• Package Compatibility: 8-pin surface-mount form factor (8-TSSOP, 8-MSOP, or equivalent)
• Operating Temperature Range: -40°C to 85°C minimum
• Compliance: ROHS3 compliant, MSL 1 rating

Substitute parts must satisfy all critical electrical parameters within the specified tolerances and maintain package-level compatibility for PCB layout and assembly processes.

Parameter Comparison

Engineering Selection Recommendations

Direct Parametric Equivalent (Recommended Primary Substitute)

MAX989EUA+T is the direct parametric equivalent to MAX989EUA-T. Both parts share identical electrical specifications, output configuration, and supply voltage range. The primary difference is packaging format: MAX989EUA+T is supplied in Tape & Reel (TR) format with Active product status, compared to the obsolete MAX989EUA-T. This part provides the highest level of design compatibility and requires no circuit modifications.

Secondary Substitutes with Acceptable Parameter Variance

TLV3202AIDGK and TLV3202AIDGKR (Texas Instruments) meet the critical electrical requirements with input offset voltage of 5mV, input bias current of 50pA, and CMRR/PSRR of 70dB/85dB. These parts feature faster propagation delay (50ns versus 450ns) and extended operating temperature range (-40°C to 125°C). Both are Active status products. Package compatibility is maintained with 8-TSSOP/8-MSOP form factor. The primary trade-off is higher quiescent current (50µA versus 24µA).

BU7232SFVM-TR (Rohm Semiconductor) provides dual-channel general-purpose comparison with push-pull output in 8-MSOP package. Input offset voltage is 11mV (within acceptable tolerance), and quiescent current is 25µA. Extended operating temperature range to 105°C is available. This part is Active status and ROHS3 compliant.

HA1631D01MMEL-E (Renesas Electronics) offers dual-channel comparison with open-drain and push-pull output options. Input offset voltage is 5mV, input bias current is 1pA, and quiescent current is 20µA. Operating temperature range is -40°C to 85°C. This part is Active status and ROHS3 compliant.

Substitutes with Parameter Trade-offs

AZV3002S-13 (Diodes Incorporated) and LMC6762BIM/NOPB (Texas Instruments) deviate from the original specifications in propagation delay and quiescent current. AZV3002S-13 exhibits 0.8µs propagation delay and 9µA quiescent current. LMC6762BIM/NOPB has 10µs propagation delay and 20µA quiescent current but supports extended supply voltage range (2.7V to 15V). These parts are suitable only for applications where timing performance is not critical.

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can MAX989EUA+T be used as a direct replacement for MAX989EUA-T?

A: Yes. MAX989EUA+T is the direct parametric equivalent with identical electrical specifications, output configuration, and supply voltage range. The only difference is packaging format (Tape & Reel versus tube). No circuit modifications are required. MAX989EUA+T is Active status, making it the recommended primary substitute for the obsolete MAX989EUA-T.

Q: What are the key differences between MAX989EUA-T and TLV3202AIDGK?

A: Both parts meet the 5mV input offset voltage and 1pA input bias current specifications. TLV3202AIDGK offers significantly faster propagation delay (50ns versus 450ns) and extended operating temperature range (-40°C to 125°C). However, TLV3202AIDGK has higher quiescent current (50µA versus 24µA) and lower CMRR (70dB versus 80dB). Selection depends on whether faster response time or lower power consumption is prioritized in the application.

Q: Are package changes required when substituting with AZV3002S-13 or LMC6762BIM/NOPB?

A: Yes. AZV3002S-13 uses 8-SOIC package (0.154", 3.90mm width) instead of 8-TSSOP/8-MSOP. LMC6762BIM/NOPB also uses 8-SOIC package. Both require PCB layout modifications and are not pin-compatible with the original 8-TSSOP/8-MSOP footprint. These substitutes are suitable only when PCB redesign is feasible.

Q: Which substitute parts maintain the same package footprint as MAX989EUA-T?

A: MAX989EUA+T, BU7232SFVM-TR, HA1631D01MMEL-E, TLV3202AIDGK, and TLV3202AIDGKR all use 8-TSSOP or 8-MSOP packages compatible with the original MAX989EUA-T footprint. These parts support direct PCB substitution without layout modifications.

Q: What is the significance of Product Status (Active, Obsolete, Last Time Buy)?

A: Product Status indicates supply chain availability and manufacturer support. Active status parts have ongoing production and long-term availability. Obsolete parts are no longer manufactured. Last Time Buy parts have limited remaining inventory before discontinuation. For new designs or long-term production, Active status substitutes (MAX989EUA+T, TLV3202AIDGK, TLV3202AIDGKR, BU7232SFVM-TR, HA1631D01MMEL-E, AZV3002S-13) are recommended.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original MAX989EUA-T compliance profile. This ensures compatibility with standard manufacturing processes and environmental regulations.

Q: Which substitute offers the best balance of performance and compatibility?

A: MAX989EUA+T provides identical performance and full compatibility with zero design risk. For applications requiring improved performance, TLV3202AIDGK and TLV3202AIDGKR offer faster propagation delay (50ns) and extended temperature range while maintaining package compatibility. Selection should be based on specific application timing and power consumption requirements.