MAX336CWI Equivalent & Substitute Parts

Part Overview

The MAX336CWI is a 16:1 analog multiplexer/demultiplexer IC manufactured by Analog Devices Inc./Maxim Integrated, housed in a 28-SOIC surface mount package. This component features 400Ohm on-state resistance and operates across supply voltages of 4.5V to 20V (single supply) or ±4.5V to 20V (dual supply). The part is currently classified as obsolete, making identification of suitable alternatives essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Multiplexer/Demultiplexer Circuit	16:1
Number of Circuits	1
On-State Resistance (Max)	400Ohm
Channel-to-Channel Matching (ΔRon)	5Ohm
Voltage - Supply, Single (V+)	4.5V ~ 20V
Voltage - Supply, Dual (V±)	±4.5V ~ 20V
Switch Time (Ton, Toff) (Max)	500ns, 500ns
Charge Injection	4.6pC
Current - Leakage (IS(off)) (Max)	20pA
Crosstalk	-86dB @ 100kHz
Operating Temperature	0°C ~ 70°C
Package / Case	28-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution eligibility for the MAX336CWI is determined by the following critical parameters:

Primary Compatibility Criteria:

Multiplexer/Demultiplexer configuration: 16:1
Number of circuits: 1
Package type: 28-SOIC surface mount
Supply voltage compatibility with existing system design

Secondary Compatibility Criteria:

On-state resistance within acceptable tolerance for signal path integrity
Channel-to-Channel matching (ΔRon) for uniform channel performance
Switch timing characteristics for signal fidelity
Leakage current specifications for low-power applications
Operating temperature range suitability

The identified substitutes maintain the core 16:1 multiplexer architecture and 28-SOIC package footprint, ensuring mechanical and functional compatibility. Variations in electrical performance parameters reflect different design approaches and manufacturing processes between manufacturers.

Parameter Comparison

Parameter	MAX336CWI	MAX336CWI+	DG506BEW-T1-GE3
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Vishay Siliconix
Product Status	Obsolete	Active	Active
Multiplexer/Demultiplexer Circuit	16:1	16:1	16:1
On-State Resistance (Max)	400Ohm	400Ohm	300Ohm
Channel-to-Channel Matching (ΔRon)	5Ohm	5Ohm	10Ohm
Voltage - Supply, Single (V+)	4.5V ~ 20V	4.5V ~ 20V	12V ~ 44V
Voltage - Supply, Dual (V±)	±4.5V ~ 20V	±4.5V ~ 20V	±5V ~ 20V
Switch Time (Ton, Toff) (Max)	500ns, 500ns	500ns, 500ns	250ns, 200ns
Charge Injection	4.6pC	4.6pC	1pC
Current - Leakage (IS(off)) (Max)	20pA	20pA	1nA
Crosstalk	-86dB @ 100kHz	-86dB @ 100kHz	-85dB @ 1MHz
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 125°C
Package / Case	28-SOIC	28-SOIC	28-SOIC
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	-	Tube	Tape & Reel (TR)

Engineering Selection Recommendations

MAX336CWI+ (Analog Devices Inc./Maxim Integrated): This part is the direct successor to the MAX336CWI, offering identical electrical specifications while maintaining active product status. The MAX336CWI+ provides ROHS3 compliance and is available in tube packaging. This option is recommended for applications requiring exact parameter matching and continuity with the original design. The active status ensures long-term availability and manufacturing support.

DG506BEW-T1-GE3 (Vishay Siliconix): This alternative provides a 16:1 multiplexer configuration in the same 28-SOIC package with enhanced performance characteristics. The DG506BEW-T1-GE3 features lower on-state resistance (300Ohm vs. 400Ohm), faster switching times (250ns/200ns vs. 500ns/500ns), and reduced charge injection (1pC vs. 4.6pC). The extended operating temperature range (-40°C to 125°C) and ROHS3 compliance support broader application requirements. Selection of this part requires verification that the lower on-state resistance and different channel matching specification (10Ohm vs. 5Ohm) are compatible with the target circuit design. The higher single supply voltage minimum (12V vs. 4.5V) may restrict use in low-voltage applications.

Frequently Asked Questions (FAQ)

Q: Can MAX336CWI+ be used as a direct replacement for MAX336CWI? A: Yes. The MAX336CWI+ maintains identical electrical specifications including on-state resistance, supply voltage ranges, switch timing, and package configuration. The primary differences are product status (active vs. obsolete) and RoHS compliance level.

Q: What are the key differences between MAX336CWI and DG506BEW-T1-GE3? A: Both devices provide 16:1 multiplexing in 28-SOIC packages. The DG506BEW-T1-GE3 offers superior performance with lower on-state resistance (300Ohm), faster switching (250ns/200ns), and reduced charge injection (1pC). However, it requires minimum 12V single supply voltage compared to 4.5V for the MAX336CWI, and has looser channel matching (10Ohm vs. 5Ohm).

Q: Is the 28-SOIC package footprint identical across all three parts? A: Yes. All three parts use the 28-SOIC (0.295", 7.50mm Width) package, ensuring mechanical compatibility and identical PCB footprints.

Q: What supply voltage considerations apply when selecting between these parts? A: The MAX336CWI and MAX336CWI+ support 4.5V to 20V single supply. The DG506BEW-T1-GE3 requires 12V to 44V single supply. For applications operating below 12V single supply, only the MAX336CWI or MAX336CWI+ are suitable.

Q: Are there RoHS compliance differences? A: Yes. The MAX336CWI is RoHS non-compliant. Both MAX336CWI+ and DG506BEW-T1-GE3 are ROHS3 compliant, meeting current environmental regulations.

Q: What packaging options are available? A: MAX336CWI+ is supplied in tube packaging. DG506BEW-T1-GE3 is supplied in Tape & Reel (TR) format. Packaging selection depends on assembly process requirements and volume considerations.

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