MAX9030AXT-T Equivalent & Substitute Parts

Part Overview

The MAX9030AXT-T is a general-purpose comparator IC manufactured by Analog Devices Inc./Maxim Integrated, designed for rail-to-rail push-pull output applications in the SC-70-6 package. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The comparator operates across a 2.5V to 5.5V supply voltage range with low input offset voltage and minimal quiescent current consumption, suitable for precision signal comparison applications.

Substiute Parts

MAX9030AXT-T

Analog Devices Inc./Maxim IntegratedIn Stock: 9367MAX9030AXT-T Datasheet

Current PartRFQ

MAX9030AXT+T

Analog Devices Inc./Maxim IntegratedIn Stock: 5336MAX9030AXT+T Datasheet

DirectRFQ

BU7251SG-TR

Rohm SemiconductorIn Stock: 4203BU7251SG-TR Datasheet

MFR RecommendedRFQ

LMV7219M5/NOPB

Texas InstrumentsIn Stock: 23142LMV7219M5/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MAX9030AXT-T is determined by the following critical parameters:

Primary Substitution Criteria:

• Single-element general-purpose comparator topology
• Push-pull output configuration
• Supply voltage compatibility within or overlapping the 2.5V ~ 5.5V range
• Surface-mount packaging suitable for SC-70-6 footprint or compatible alternatives
• Operating temperature range covering -40°C minimum
• RoHS3 compliance and MSL Level 1 rating

Substitute Parts Identified:

1. MAX9030AXT+T (Analog Devices Inc./Maxim Integrated) - Direct equivalent with identical electrical specifications, differentiated only by packaging format (Tape & Reel vs. bulk) and active product status.

2. BU7251SG-TR (Rohm Semiconductor) - Functional substitute with extended lower supply voltage range (1.8V ~ 5.5V), reduced quiescent current (35µA), and different package footprint (5-SSOP). Trade-offs include higher input offset voltage (11mV) and longer propagation delay (550ns).

3. LMV7219M5/NOPB (Texas Instruments) - Functional substitute with rail-to-rail output, narrower supply range (2.7V ~ 5V), significantly faster propagation delay (20ns), and higher quiescent current (1.8mA). Package footprint differs (SOT-23-5).

Parameter Comparison

Engineering Selection Recommendations

MAX9030AXT+T is the primary direct replacement for MAX9030AXT-T. Both parts share identical electrical specifications and operating characteristics. The distinction lies in product status (active vs. obsolete) and packaging format. This substitute maintains full compatibility with existing designs and PCB layouts. Selection of MAX9030AXT+T is recommended for new production runs and long-term supply continuity.

BU7251SG-TR serves as a functional alternative for applications where lower quiescent current consumption is prioritized. The extended lower supply voltage range (1.8V) accommodates battery-powered or low-voltage applications. However, the higher input offset voltage (11mV) and extended propagation delay (550ns) require circuit-level evaluation. Package footprint differs, necessitating PCB redesign. This substitute is suitable for low-power applications with relaxed timing requirements.

LMV7219M5/NOPB is appropriate for timing-critical applications requiring fast propagation delay (20ns). The rail-to-rail output and active product status ensure long-term availability. The significantly higher quiescent current (1.8mA) and narrower operating temperature range (-40°C ~ 85°C) must be evaluated against application power budgets and thermal requirements. Package footprint differs, requiring PCB redesign.

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

Frequently Asked Questions (FAQ)

Q: Can MAX9030AXT+T be used as a direct drop-in replacement for MAX9030AXT-T?

A: Yes. MAX9030AXT+T is electrically and functionally identical to MAX9030AXT-T. The primary difference is product status (active vs. obsolete) and packaging format (Tape & Reel vs. bulk). Both parts use the same SC-70-6 package and share identical electrical specifications. No circuit modifications are required.

Q: What are the key differences between MAX9030AXT-T and BU7251SG-TR?

A: BU7251SG-TR offers lower quiescent current (35µA vs. 55µA) and extended lower supply voltage range (1.8V minimum). However, it has higher input offset voltage (11mV vs. 1mV), longer propagation delay (550ns vs. 228ns), and uses a different package footprint (5-SSOP vs. SC-70-6). PCB redesign is required for package compatibility.

Q: Is LMV7219M5/NOPB suitable for high-speed applications?

A: LMV7219M5/NOPB features significantly faster propagation delay (20ns vs. 228ns), making it suitable for timing-critical applications. However, quiescent current is substantially higher (1.8mA vs. 55µA), and the operating temperature range is narrower (-40°C ~ 85°C vs. -40°C ~ 125°C). Package footprint differs (SOT-23-5), requiring PCB redesign.

Q: Do all substitute parts maintain the same supply voltage range?

A: No. MAX9030AXT+T maintains the identical 2.5V ~ 5.5V range. BU7251SG-TR extends the lower limit to 1.8V. LMV7219M5/NOPB operates within 2.7V ~ 5V. Circuit design must account for these differences when selecting substitutes.

Q: Are package footprints interchangeable between these parts?

A: No. MAX9030AXT-T and MAX9030AXT+T use SC-70-6 packaging. BU7251SG-TR and LMV7219M5/NOPB use different footprints (5-SSOP and SOT-23-5 respectively). PCB redesign is required when substituting with BU7251SG-TR or LMV7219M5/NOPB.

Q: What compliance certifications apply to all substitute parts?

A: All parts listed are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating. All are classified under ECCN EAR99 for export control purposes.