MAX382CWN+ Equivalent & Substitute Parts

Part Overview

The MAX382CWN+ is an 8:1 analog multiplexer/demultiplexer IC manufactured by Analog Devices Inc./Maxim Integrated. This single-circuit switch device operates across a wide supply voltage range and is designed for signal routing applications requiring low on-state resistance and minimal crosstalk. The part is currently in active production status with 779 units available in stock. Alternative equivalent parts may be required due to supply constraints, design optimization, or specific application requirements.

Key Parameters

Parameter	Value
Multiplexer/Demultiplexer Configuration	8:1
Number of Circuits	1
On-State Resistance (Max)	100Ω
Channel-to-Channel Matching (ΔRon)	4Ω (Max)
Voltage - Supply, Single (V+)	2.7V ~ 16.5V
Voltage - Supply, Dual (V±)	±3V ~ 8V
Switch Time (Ton, Toff) (Max)	150ns, 150ns
Charge Injection	2pC
Channel Capacitance (CS(off), CD(off))	11pF, 40pF
Current - Leakage (IS(off)) (Max)	200pA
Crosstalk	-92dB @ 100kHz
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	18-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Equivalent and substitute parts for the MAX382CWN+ must satisfy the following criteria based on allowed electrical and mechanical parameters:

Critical Matching Parameters:

Multiplexer/Demultiplexer configuration: 8:1
Number of circuits: 1
On-state resistance: 100Ω maximum
Channel-to-channel matching: 4Ω maximum
Supply voltage compatibility: Single supply 2.7V ~ 16.5V or dual supply ±3V ~ 8V
Package type: 18-SOIC surface mount
Operating temperature range: 0°C ~ 70°C minimum

Substitute parts must maintain electrical performance within these specified parameters and be compatible with the 18-SOIC package footprint. Parts meeting these criteria are considered functionally equivalent for direct replacement in circuit applications.

Parameter Comparison

Parameter	MAX382CWN+ (Main Part)	MAX382CWN+ (Substitute)
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Multiplexer Configuration	8:1	8:1
Number of Circuits	1	1
On-State Resistance (Max)	100Ω	100Ω
Channel-to-Channel Matching (ΔRon)	4Ω (Max)	4Ω (Max)
Voltage - Supply, Single (V+)	2.7V ~ 16.5V	2.7V ~ 16.5V
Voltage - Supply, Dual (V±)	±3V ~ 8V	±3V ~ 8V
Switch Time (Ton, Toff) (Max)	150ns, 150ns	150ns, 150ns
Charge Injection	2pC	2pC
Channel Capacitance (CS(off), CD(off))	11pF, 40pF	11pF, 40pF
Current - Leakage (IS(off)) (Max)	200pA	200pA
Crosstalk	-92dB @ 100kHz	-92dB @ 100kHz
Operating Temperature	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)
Package / Case	18-SOIC (0.295", 7.50mm Width)	18-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

The MAX382CWN+ is an active product with full ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and use. The part carries MSL Level 1 rating, indicating unlimited shelf life without moisture sensitivity constraints.

Selection of equivalent parts should be based on confirmation that all electrical parameters remain within specified tolerances and that the 18-SOIC package footprint is maintained. Compliance certifications (ROHS3, REACH) must be verified for substitute parts to ensure regulatory alignment with the original component specification.

Frequently Asked Questions (FAQ)

Q: What defines a compatible substitute for the MAX382CWN+? A: A compatible substitute must maintain the 8:1 multiplexer configuration, 100Ω on-state resistance, 4Ω maximum channel-to-channel matching, and operate within the specified supply voltage ranges (2.7V ~ 16.5V single or ±3V ~ 8V dual). The part must be packaged in 18-SOIC surface mount format with operating temperature range of 0°C ~ 70°C.

Q: Can the MAX382CWN+ be replaced with a different package type? A: No. The 18-SOIC package is a critical specification for PCB compatibility. Substitutes must use the identical 18-SOIC (0.295", 7.50mm Width) package to ensure proper footprint alignment and circuit board integration.

Q: What is the significance of the 4Ω channel-to-channel matching specification? A: Channel-to-channel matching (ΔRon) of 4Ω maximum ensures consistent signal attenuation across all eight multiplexer channels. This parameter is critical for applications requiring uniform signal routing characteristics and must be maintained in any substitute part.

Q: Are there supply voltage flexibility considerations for substitution? A: The MAX382CWN+ supports both single supply (2.7V ~ 16.5V) and dual supply (±3V ~ 8V) configurations. Substitute parts must support the same voltage ranges to maintain circuit design compatibility.

Q: What is the importance of the -92dB crosstalk specification? A: Crosstalk of -92dB @ 100kHz indicates the level of signal isolation between non-selected channels. This specification must be maintained in substitute parts to prevent unwanted signal coupling in multi-channel applications.

Q: Does the MSL Level 1 rating affect component handling? A: MSL Level 1 indicates unlimited shelf life without moisture sensitivity constraints. This simplifies inventory management and component handling compared to higher MSL ratings, and substitute parts should maintain this same MSL classification.

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