MAX334CWE Equivalent & Substitute Parts

Part Overview

The MAX334CWE is a 4-circuit IC switch with SPST-NC (Single Pole Single Throw - Normally Closed) configuration, designed for 50Ohm impedance matching applications. This component operates across a wide supply voltage range (5V to 30V single supply, or ±5V to ±15V dual supply) and features fast switching times suitable for signal routing and multiplexing tasks in interface applications.

The MAX334CWE is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for existing applications and new designs.

Key Parameters

Parameter	Value
Switch Circuit Type	SPST - NC
Number of Circuits	4
Multiplexer/Demultiplexer Configuration	1:1
On-State Resistance (Max)	50Ohm
Channel-to-Channel Matching (ΔRon)	1.5Ohm
Voltage - Supply, Single (V+)	5V ~ 30V
Voltage - Supply, Dual (V±)	±5V ~ 15V
Switch Time (Ton, Toff) (Max)	120ns, 75ns
Charge Injection	10pC
Channel Capacitance (CS(off), CD(off))	10pF, 10pF
Current - Leakage (IS(off)) (Max)	1nA
Crosstalk	-86dB @ 1MHz
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	16-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution eligibility for the MAX334CWE is determined by strict equivalence across the following critical parameters:

Switch circuit topology (SPST - NC configuration)
Number of circuits (4 independent circuits)
Multiplexer/demultiplexer ratio (1:1)
On-state resistance specification (50Ohm maximum)
Channel-to-channel matching tolerance (1.5Ohm maximum)
Supply voltage ranges (5V ~ 30V single supply; ±5V ~ 15V dual supply)
Switching performance (Ton ≤ 120ns, Toff ≤ 75ns)
Charge injection (10pC)
Channel capacitance (10pF off-state)
Leakage current (1nA maximum)
Crosstalk performance (-86dB @ 1MHz)
Operating temperature range (0°C ~ 70°C)
Package form factor (16-SOIC surface mount)

The MAX334CWE+ meets all these criteria and qualifies as a direct substitute.

Parameter Comparison

Parameter	MAX334CWE (Main Part)	MAX334CWE+ (Substitute)
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Switch Circuit	SPST - NC	SPST - NC
Number of Circuits	4	4
Multiplexer/Demultiplexer Circuit	1:1	1:1
On-State Resistance (Max)	50Ohm	50Ohm
Channel-to-Channel Matching (ΔRon)	1.5Ohm	1.5Ohm
Voltage - Supply, Single (V+)	5V ~ 30V	5V ~ 30V
Voltage - Supply, Dual (V±)	±5V ~ 15V	±5V ~ 15V
Switch Time (Ton, Toff) (Max)	120ns, 75ns	120ns, 75ns
Charge Injection	10pC	10pC
Channel Capacitance (CS(off), CD(off))	10pF, 10pF	10pF, 10pF
Current - Leakage (IS(off)) (Max)	1nA	1nA
Crosstalk	-86dB @ 1MHz	-86dB @ 1MHz
Operating Temperature	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)
Package / Case	16-SOIC (0.295", 7.50mm Width)	16-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount	Surface Mount
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Packaging	Not specified	Tube

Engineering Selection Recommendations

The MAX334CWE+ is the direct substitute for the MAX334CWE. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical and mechanical specifications across all critical parameters.

The primary distinction between these parts is product status and regulatory compliance. The MAX334CWE is obsolete, while the MAX334CWE+ maintains active product status. The MAX334CWE+ also carries ROHS3 compliance, whereas the original MAX334CWE is RoHS non-compliant. For new designs and applications requiring regulatory compliance with modern environmental standards, the MAX334CWE+ is the appropriate selection. For legacy system maintenance where RoHS compliance is not a requirement, the MAX334CWE+ remains functionally equivalent and interchangeable.

Frequently Asked Questions (FAQ)

Q: Can the MAX334CWE+ be used as a direct replacement for the MAX334CWE in existing designs?

A: Yes. The MAX334CWE+ is electrically and mechanically identical to the MAX334CWE. All electrical parameters, switching characteristics, supply voltage ranges, package dimensions, and pin configurations are equivalent. Direct substitution is supported without circuit modification.

Q: What is the difference between MAX334CWE and MAX334CWE+?

A: The primary differences are product status and compliance certification. The MAX334CWE is obsolete and RoHS non-compliant. The MAX334CWE+ is an active product with ROHS3 compliance. Electrical and mechanical specifications are identical.

Q: Are there any packaging differences between these parts?

A: Both parts use the 16-SOIC surface mount package with identical dimensions (0.295", 7.50mm width). The MAX334CWE+ is supplied in tube packaging, while the original MAX334CWE packaging specification is not detailed. This does not affect electrical performance or PCB assembly compatibility.

Q: Is the MAX334CWE+ suitable for applications requiring RoHS compliance?

A: Yes. The MAX334CWE+ carries ROHS3 certification and is suitable for applications with RoHS compliance requirements. The original MAX334CWE is RoHS non-compliant.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is based on matching switch circuit topology (SPST - NC), circuit count (4), impedance (50Ohm), supply voltage ranges (5V ~ 30V single; ±5V ~ 15V dual), switching times (120ns/75ns), charge injection (10pC), capacitance (10pF), leakage current (1nA), crosstalk (-86dB @ 1MHz), and operating temperature range (0°C ~ 70°C). The MAX334CWE+ meets all these specifications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message