MAX9034ASD+ Equivalent & Substitute Parts

Part Overview

The MAX9034ASD+ is a general-purpose quad comparator manufactured by Analog Devices Inc./Maxim Integrated, featuring push-pull, rail-to-rail output configuration in a 14-SOIC surface mount package. This device is actively produced and widely used in signal conditioning, threshold detection, and analog-to-digital interface applications. Finding equivalent substitute parts becomes necessary due to supply chain constraints, regional availability, or design flexibility requirements while maintaining functional compatibility within specified electrical and mechanical parameters.

Substiute Parts

MAX9034ASD+

Analog Devices Inc./Maxim IntegratedIn Stock: 1009MAX9034ASD+ Datasheet

Current PartRFQ

MAX9034ASD+

Analog Devices Inc./Maxim IntegratedIn Stock: 1009MAX9034ASD+ Datasheet

DirectRFQ

TS334IDT

STMicroelectronicsIn Stock: 9787TS334IDT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX9034ASD+ are identified based on the following critical parameters that determine functional compatibility:

• Package Type: 14-SOIC surface mount configuration
• Element Count: Quad comparator (4 independent comparators)
• Supply Voltage Range: Minimum 2.5V operation capability
• Operating Temperature Range: -40°C to 125°C
• Compliance Standards: ROHS3 compliance and MSL Level 1

The TS334IDT from STMicroelectronics qualifies as a substitute based on matching package geometry, element count, temperature range, and compliance certifications. However, differences in output type (open-drain versus push-pull), supply voltage lower limit (1.6V versus 2.5V), and electrical performance parameters must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Selection between MAX9034ASD+ and TS334IDT depends on output stage requirements and supply voltage specifications:

MAX9034ASD+ (Primary Selection)

• Applications requiring push-pull, rail-to-rail output capability
• Systems with minimum supply voltage of 2.5V or higher
• Designs prioritizing lower input offset voltage (1mV maximum)
• Active product status with established supply chain

TS334IDT (Alternative Selection)

• Applications compatible with open-drain output configuration
• Systems requiring extended lower supply voltage operation (1.6V minimum)
• Designs where lower quiescent current (26µA) provides power efficiency advantage
• Faster propagation delay (210ns) beneficial for high-speed applications
• Active product status with ROHS3 compliance

Both devices maintain identical operating temperature range (-40°C to 125°C), MSL Level 1 rating, and 14-SOIC package geometry, ensuring mechanical and thermal compatibility in PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can TS334IDT directly replace MAX9034ASD+ in existing designs?

A: Direct replacement requires circuit evaluation. The TS334IDT open-drain output differs from MAX9034ASD+ push-pull configuration. Applications using the rail-to-rail output capability of MAX9034ASD+ may require pull-up resistor addition when substituting with TS334IDT. Supply voltage minimum specification (1.6V versus 2.5V) must align with system requirements.

Q: Are both parts physically compatible in the same PCB footprint?

A: Yes. Both devices use identical 14-SOIC (0.154", 3.90mm Width) surface mount package geometry, ensuring footprint compatibility without PCB redesign.

Q: What are the key electrical differences affecting substitution?

A: Input offset voltage differs significantly (1mV for MAX9034ASD+ versus 5mV for TS334IDT at 5V supply). Input bias current is lower in MAX9034ASD+ (0.008µA versus 0.04µA). Quiescent current favors TS334IDT (26µA versus 55µA). Output type fundamentally differs: push-pull rail-to-rail versus open-drain.

Q: Do both parts meet the same compliance standards?

A: Yes. Both MAX9034ASD+ and TS334IDT are ROHS3 compliant with MSL Level 1 rating, meeting identical environmental and regulatory requirements.

Q: Which part should be selected for new designs?

A: Selection depends on output stage requirements. Push-pull, rail-to-rail output applications require MAX9034ASD+. Open-drain compatible designs with extended lower voltage operation benefit from TS334IDT. Both maintain active product status.