MAX934CSE-T Equivalent & Substitute Parts

Part Overview

The MAX934CSE-T is a quad comparator with integrated voltage reference, manufactured by Analog Devices Inc./Maxim Integrated. This CMOS/TTL output device operates across single supply (2.5V to 11V) or dual supply (±1.25V to ±5.5V) configurations and is housed in a 16-SOIC surface mount package. The part is currently obsolete, making equivalent substitutes necessary for new designs and production continuity. Active alternatives from the same manufacturer family provide identical or enhanced electrical performance with current product status.

Substiute Parts

MAX934CSE-T

Analog Devices Inc./Maxim IntegratedIn Stock: 3167MAX934CSE-T Datasheet

Current PartRFQ

MAX934CSE+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2377MAX934CSE+T Datasheet

DirectRFQ

LTC1443CS#PBF

Analog Devices Inc.In Stock: 1227LTC1443CS#PBF Datasheet

MFR RecommendedRFQ

LTC1443CS#TRPBF

Analog Devices Inc.In Stock: 837LTC1443CS#TRPBF Datasheet

MFR RecommendedRFQ

LTC1443IS#PBF

Analog Devices Inc.In Stock: 21631LTC1443IS#PBF Datasheet

MFR RecommendedRFQ

LTC1443IS#TRPBF

Analog Devices Inc.In Stock: 1957LTC1443IS#TRPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX934CSE-T is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Number of Elements: 4 comparators
• Output Type: CMOS, TTL
• Voltage Supply Range: Minimum 2.5V single supply or ±1.25V dual supply capability
• Input Offset Voltage: 10mV @ 5V maximum
• Output Current: 0.015mA @ 5V typical
• Quiescent Current: 8.5µA maximum
• CMRR/PSRR: 80dB minimum
• Propagation Delay: 12µs maximum

Mechanical Compatibility Requirements:

• Package: 16-SOIC form factor
• Mounting: Surface mount
• Pin count and pinout: 16-pin configuration

Regulatory Compliance:

• RoHS3 compliance required
• MSL rating: 1 (Unlimited)

The substitute parts listed below maintain electrical equivalence within these parameters while offering improved product status (Active vs. Obsolete) and extended temperature range options where applicable.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Same Temperature Range): MAX934CSE+T is the primary direct substitute for MAX934CSE-T. Both parts maintain identical electrical specifications and operating temperature range (0°C to 70°C). The MAX934CSE+T carries Active product status and is available in Cut Tape and Digi-Reel packaging options, ensuring supply continuity.

Extended Temperature Range Alternatives: LTC1443IS#PBF and LTC1443IS#TRPBF extend the operating temperature range to -40°C to 85°C, providing enhanced reliability for industrial and automotive applications. These parts maintain all critical electrical parameters and are available in Tube and Tape & Reel packaging respectively. LTC1443IS#TRPBF additionally specifies 50mV hysteresis, which may be beneficial in noise-sensitive applications.

Commercial Temperature Range Alternatives: LTC1443CS#PBF and LTC1443CS#TRPBF maintain the 0°C to 70°C operating range and are available in Tube and Tape & Reel packaging. These parts are suitable for applications where extended temperature capability is not required.

Regulatory Compliance: All substitute parts maintain ROHS3 compliance and MSL rating 1 (Unlimited), ensuring compatibility with current manufacturing and environmental standards.

Packaging Considerations: Selection between packaging options (Tube, Tape & Reel, Cut Tape, Digi-Reel) depends on production volume and assembly requirements. Tape & Reel packaging is standard for high-volume automated assembly. Tube packaging is suitable for lower volumes and manual assembly processes.

Frequently Asked Questions (FAQ)

Q: Can MAX934CSE+T be used as a direct replacement for MAX934CSE-T? A: Yes. MAX934CSE+T is electrically and mechanically identical to MAX934CSE-T, with the primary difference being Active product status versus Obsolete. Both parts operate across 0°C to 70°C and maintain identical electrical specifications.

Q: What is the difference between LTC1443 variants (CS vs. IS)? A: The CS variant operates across 0°C to 70°C (commercial temperature range), while the IS variant operates across -40°C to 85°C (industrial temperature range). All other electrical parameters remain identical. Selection depends on the application's temperature requirements.

Q: Are packaging options interchangeable? A: Packaging options (Tube, Tape & Reel, Cut Tape, Digi-Reel) are interchangeable from an electrical and mechanical standpoint. Selection is based on production volume, assembly equipment, and supply chain requirements. The 16-SOIC package form factor remains constant across all options.

Q: Does the 50mV hysteresis specified in LTC1443IS#TRPBF affect compatibility? A: The 50mV hysteresis in LTC1443IS#TRPBF is an additional specification not present in other variants. This provides improved noise immunity and may be beneficial in applications with noisy input signals. It does not prevent substitution but should be evaluated for the specific application.

Q: What is the significance of the voltage supply range differences between MAX934 and LTC1443 parts? A: MAX934CSE-T specifies 2.5V to 11V single supply and ±1.25V to ±5.5V dual supply. LTC1443 variants specify 2V to 11V single supply and ±1V to ±5.5V dual supply. The LTC1443 parts support lower minimum supply voltages, making them suitable for lower-power applications. Both ranges are compatible with standard 5V and ±5V supply systems.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All substitute parts listed maintain ROHS3 compliance and MSL rating 1 (Unlimited), meeting current environmental and manufacturing standards.

Q: Which substitute should be selected for new designs? A: For new designs requiring 0°C to 70°C operation, MAX934CSE+T or LTC1443CS variants are appropriate. For applications requiring extended temperature range (-40°C to 85°C), LTC1443IS variants are recommended. All parts are electrically equivalent within their specified operating ranges.