MAX334EPE Equivalent & Substitute Parts

Part Overview

The MAX334EPE is a 4-circuit SPST-NC (Single Pole Single Throw - Normally Closed) analog switch IC manufactured by Analog Devices Inc./Maxim Integrated. This device operates as a 1:1 multiplexer/demultiplexer with 50Ohm on-state resistance and is housed in a 16-DIP package. The MAX334EPE is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility across switch topology, circuit count, package form factor, and operating temperature range while accommodating variations in electrical performance characteristics.

Substiute Parts

MAX334EPE

Analog Devices Inc./Maxim IntegratedIn Stock: 2003MAX334EPE Datasheet

Current PartRFQ

ADG441BNZ

Analog Devices Inc.In Stock: 2089ADG441BNZ Datasheet

MFR RecommendedRFQ

DG271BCJ-E3

Vishay SiliconixIn Stock: 1198DG271BCJ-E3 Datasheet

MFR RecommendedRFQ

DG411DJ-E3

Vishay SiliconixIn Stock: 2575DG411DJ-E3 Datasheet

MFR RecommendedRFQ

DG411DJZ

Renesas Electronics CorporationIn Stock: 12247DG411DJZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX334EPE are qualified based on the following mandatory compatibility criteria:

Functional Requirements:

• Switch circuit type: SPST - NC (Single Pole Single Throw - Normally Closed)
• Number of circuits: 4
• Multiplexer/Demultiplexer configuration: 1:1
• Package form factor: 16-DIP (0.300", 7.62mm)
• Mounting type: Through Hole
• Operating temperature range: -40°C ~ 85°C (TA)

Electrical Performance Tolerance:

• On-state resistance: 35Ohm to 70Ohm (acceptable range for signal switching applications)
• Supply voltage compatibility: Overlap with MAX334EPE supply ranges (5V ~ 30V single supply or ±5V ~ 15V dual supply)
• Switch timing: Ton and Toff within acceptable operational margins
• Leakage current: ≤ 1nA maximum
• Channel capacitance: ≤ 10pF for both CS(off) and CD(off)

All four substitute parts meet these core compatibility criteria. Variations in on-state resistance, charge injection, and crosstalk performance are acceptable within the functional envelope of analog switch applications.

Parameter Comparison

Engineering Selection Recommendations

For RoHS3 Compliance Requirements: All substitute parts (ADG441BNZ, DG271BCJ-E3, DG411DJ-E3, DG411DJZ) are ROHS3 compliant, whereas the MAX334EPE is RoHS non-compliant. For new designs or production requiring regulatory compliance, any of the four substitutes are suitable.

For Active Product Status: The MAX334EPE is obsolete. All four substitute parts maintain active product status with established supply chains and ongoing manufacturer support. ADG441BNZ, DG271BCJ-E3, DG411DJ-E3, and DG411DJZ are all recommended for new designs to ensure long-term availability and technical support.

For Dual Supply Voltage Operation (±5V ~ 15V): All four substitutes support the dual supply voltage range of the MAX334EPE. ADG441BNZ operates at ±15V fixed, while DG271BCJ-E3 also operates at ±15V. DG411DJ-E3 and DG411DJZ support the extended range of ±5V ~ 20V, providing greater flexibility for dual supply applications.

For Single Supply Voltage Operation (5V ~ 30V): DG411DJ-E3 and DG411DJZ support the widest single supply range (5V ~ 44V), exceeding the MAX334EPE specification. ADG441BNZ is limited to 12V single supply. DG271BCJ-E3 does not specify single supply operation.

For On-State Resistance Matching: DG271BCJ-E3 matches the MAX334EPE at 50Ohm on-state resistance. DG411DJ-E3 and DG411DJZ offer lower on-state resistance at 35Ohm, suitable for applications requiring reduced signal attenuation. ADG441BNZ operates at 70Ohm, acceptable for higher-impedance signal paths.

For Leakage Current Performance: DG411DJZ exhibits the lowest leakage current at 100pA maximum, followed by DG411DJ-E3 at 250pA and ADG441BNZ at 500pA. DG271BCJ-E3 and MAX334EPE both specify 1nA maximum leakage. Lower leakage current is beneficial for precision analog switching applications.

For Charge Injection Characteristics: DG271BCJ-E3 exhibits the lowest charge injection at -5pC, followed by ADG441BNZ at 1pC. DG411DJ-E3 and DG411DJZ specify 5pC, while MAX334EPE specifies 10pC. Lower charge injection reduces signal distortion in precision applications.

Frequently Asked Questions (FAQ)

Q: Can I directly replace MAX334EPE with any of these substitute parts without PCB modifications?

A: Yes. All substitute parts are housed in the same 16-DIP (0.300", 7.62mm) through-hole package with identical pin configurations for SPST-NC 4-circuit switch topology. Direct socket substitution is possible without PCB layout changes.

Q: Which substitute part is the closest electrical match to MAX334EPE?

A: DG271BCJ-E3 matches the MAX334EPE on-state resistance specification at 50Ohm and leakage current at 1nA maximum. This part provides the most direct functional equivalence for applications where these parameters are critical.

Q: Are there supply voltage compatibility concerns when substituting?

A: ADG441BNZ is limited to 12V single supply operation, which may not be suitable if your design requires the full 5V ~ 30V range of the MAX334EPE. DG411DJ-E3 and DG411DJZ support 5V ~ 44V single supply, providing the broadest compatibility. For dual supply applications, all substitutes support ±15V operation, which overlaps with the MAX334EPE ±5V ~ 15V range.

Q: What is the impact of different on-state resistance values on circuit performance?

A: On-state resistance affects signal attenuation and impedance matching. DG411DJ-E3 and DG411DJZ at 35Ohm provide lower attenuation than MAX334EPE at 50Ohm. ADG441BNZ at 70Ohm introduces greater attenuation. For applications sensitive to signal loss, DG271BCJ-E3 (50Ohm) or DG411 variants (35Ohm) are preferred.

Q: Does the lower leakage current of DG411DJZ provide practical benefits?

A: DG411DJZ at 100pA maximum leakage current is beneficial for precision analog switching, high-impedance signal conditioning, and low-power applications where leakage current contributes to system noise or power consumption. For general-purpose switching, the difference between 100pA and 1nA is typically negligible.

Q: Are all substitutes suitable for new product designs?

A: Yes. All four substitute parts maintain active product status with ROHS3 compliance. For new designs, any substitute is appropriate. The choice depends on specific electrical requirements: DG271BCJ-E3 for closest MAX334EPE matching, DG411 variants for lower on-state resistance and leakage current, or ADG441BNZ for Analog Devices ecosystem consistency.

Q: What is the difference between DG411DJ-E3 and DG411DJZ?

A: Both parts are functionally identical 4-circuit SPST-NC switches with 35Ohm on-state resistance and identical electrical specifications. The primary difference is manufacturer: DG411DJ-E3 is manufactured by Vishay Siliconix, while DG411DJZ is manufactured by Renesas Electronics Corporation. DG411DJZ exhibits lower leakage current (100pA vs. 250pA), making it preferable for precision applications.

Q: Can I use these substitutes in existing MAX334EPE designs without circuit redesign?

A: Functional substitution is direct due to identical package and switch topology. However, circuit redesign may be beneficial to optimize performance. Lower on-state resistance (DG411 variants) or charge injection (DG271BCJ-E3) may improve signal integrity. Verify supply voltage compatibility with your power supply design, particularly if using ADG441BNZ (12V single supply limitation).