MAX981CUA-T Equivalent & Substitute Parts

Part Overview

The MAX981CUA-T is a single comparator with integrated voltage reference in an 8-uMAX/uSOP package, manufactured by Analog Devices Inc./Maxim Integrated. This device is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The MAX981CUA-T operates across a supply voltage range of 2.5V to 11V (single supply) or ±1.25V to 5.5V (dual supply), with integrated hysteresis of 50mV and a maximum input offset voltage of 10mV at 5V.

Substiute Parts

MAX981CUA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 904MAX981CUA-T Datasheet

Current PartRFQ

MAX981CUA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 50411MAX981CUA+T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The MAX981CUA-T has one direct equivalent substitute: MAX981CUA+T. This substitution is valid based on the following criteria:

Electrical Parameters (Identical):

• Supply voltage range: 2.5V ~ 11V (single) / ±1.25V ~ 5.5V (dual)
• Input offset voltage: 10mV @ 5V
• Quiescent current: 4µA
• CMRR/PSRR: 80dB each
• Hysteresis: 50mV
• Operating temperature: 0°C ~ 70°C

Mechanical Parameters (Identical):

• Package: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
• Supplier device package: 8-uMAX/uSOP
• Mounting type: Surface Mount

Compliance & Status:

• Both devices are ROHS3 compliant
• Both have MSL rating of 1 (Unlimited)
• Both are REACH unaffected
• Both carry ECCN EAR99 classification

The primary distinction between these parts is packaging format and product status: MAX981CUA-T is supplied in tube packaging and is obsolete, while MAX981CUA+T is supplied in Tape & Reel (TR) format and maintains active product status with significantly higher inventory availability (50,400 pcs vs. 815 pcs).

Parameter Comparison

Engineering Selection Recommendations

The MAX981CUA+T is the direct functional equivalent to the MAX981CUA-T with identical electrical and mechanical specifications. Selection of MAX981CUA+T is supported by:

• Active product status ensuring long-term availability and supply chain stability
• Significantly higher inventory levels (50,400 pcs) compared to the obsolete MAX981CUA-T (815 pcs)
• Identical compliance certifications: ROHS3, REACH unaffected, EAR99 classification
• Identical MSL rating of 1 (Unlimited) for moisture sensitivity
• Tape & Reel packaging format suitable for automated assembly processes

For new designs and production runs, MAX981CUA+T is the appropriate selection. For legacy systems requiring MAX981CUA-T, MAX981CUA+T provides full electrical and mechanical compatibility with improved supply availability.

Frequently Asked Questions (FAQ)

Q: Are MAX981CUA-T and MAX981CUA+T electrically interchangeable?

A: Yes. Both devices have identical electrical specifications including supply voltage range (2.5V ~ 11V single / ±1.25V ~ 5.5V dual), input offset voltage (10mV @ 5V), quiescent current (4µA), CMRR/PSRR (80dB each), hysteresis (50mV), and operating temperature range (0°C ~ 70°C).

Q: What is the difference between these two part numbers?

A: The primary differences are packaging format and product status. MAX981CUA-T is supplied in tube packaging and is obsolete. MAX981CUA+T is supplied in Tape & Reel format and maintains active product status with substantially higher inventory availability.

Q: Can MAX981CUA+T be used as a direct replacement in existing designs?

A: Yes. The identical package specification (8-TSSOP, 8-MSOP, 0.118" width, 3.00mm) and surface mount mounting type ensure mechanical and electrical compatibility in existing PCB layouts and assembly processes.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical compliance certifications: ROHS3 compliant, REACH unaffected, EAR99 classification, and MSL rating of 1 (Unlimited).

Q: Why is MAX981CUA-T marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production. MAX981CUA+T represents the current active equivalent for this device family.