MAX4690CWE+ Equivalent & Substitute Parts

Part Overview

The MAX4690CWE+ is a 2-circuit IC switch manufactured by Analog Devices Inc./Maxim Integrated, configured as a SPST-NO (Single Pole Single Throw - Normally Open) device with 1.25Ohm on-state resistance. This interface component operates across a wide supply voltage range (4.5V to 36V single supply, or ±4.5V to ±20V dual supply) and is designed for applications requiring low-impedance analog signal switching with minimal crosstalk. The device is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Key Parameters

Parameter	Value
Manufacturer Part Number	MAX4690CWE+
Manufacturer	Analog Devices Inc./Maxim Integrated
Category	Interface
Switch Circuit Type	SPST - NO
Number of Circuits	2
Multiplexer/Demultiplexer Circuit	1:1
On-State Resistance (Max)	1.25Ohm
Channel-to-Channel Matching (ΔRon)	90mOhm
Voltage - Supply, Single (V+)	4.5V ~ 36V
Voltage - Supply, Dual (V±)	±4.5V ~ 20V
Switch Time (Ton, Toff) (Max)	275ns, 175ns
Charge Injection	550pC
Channel Capacitance (CS(off), CD(off))	115pF, 115pF
Current - Leakage (IS(off)) (Max)	500pA
Crosstalk	-65dB @ 1MHz
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	16-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
Product Status	Active
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the MAX4690CWE+ must satisfy the following critical parameters to ensure functional and mechanical compatibility:

Electrical Compatibility Criteria:

Switch circuit configuration: SPST - NO (Single Pole Single Throw - Normally Open)
Number of circuits: 2
Multiplexer/Demultiplexer circuit ratio: 1:1
On-state resistance (maximum): 1.25Ohm
Channel-to-channel matching (ΔRon): 90mOhm
Supply voltage range: 4.5V ~ 36V (single) or ±4.5V ~ 20V (dual)
Switch timing: Ton ≤ 275ns, Toff ≤ 175ns
Charge injection: 550pC
Channel capacitance: 115pF (CS(off), CD(off))
Leakage current: ≤ 500pA
Crosstalk: -65dB @ 1MHz

Mechanical Compatibility Criteria:

Package type: 16-SOIC (0.295", 7.50mm Width)
Mounting type: Surface Mount
Operating temperature range: 0°C ~ 70°C

Compliance Criteria:

RoHS3 compliance required
Moisture sensitivity level: MSL 1 or better

Parameter Comparison

Parameter	MAX4690CWE+ (Main Part)	MAX4690CWE+ (Substitute)
Manufacturer Part Number	MAX4690CWE+	MAX4690CWE+
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Switch Circuit Type	SPST - NO	SPST - NO
Number of Circuits	2	2
On-State Resistance (Max)	1.25Ohm	1.25Ohm
Channel-to-Channel Matching (ΔRon)	90mOhm	90mOhm
Voltage - Supply, Single (V+)	4.5V ~ 36V	4.5V ~ 36V
Voltage - Supply, Dual (V±)	±4.5V ~ 20V	±4.5V ~ 20V
Switch Time (Ton, Toff) (Max)	275ns, 175ns	275ns, 175ns
Charge Injection	550pC	550pC
Channel Capacitance (CS(off), CD(off))	115pF, 115pF	115pF, 115pF
Current - Leakage (IS(off)) (Max)	500pA	500pA
Crosstalk	-65dB @ 1MHz	-65dB @ 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	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

The MAX4690CWE+ is the direct equivalent part. Both the main part and substitute maintain identical electrical specifications, mechanical packaging, and compliance certifications. Selection between equivalent units should be based on inventory availability and lead time requirements. Both parts carry active product status from Analog Devices Inc./Maxim Integrated, ensuring continued manufacturing support and supply chain stability. RoHS3 compliance and MSL 1 rating confirm suitability for standard PCB assembly processes without special moisture handling requirements.

Frequently Asked Questions (FAQ)

Q: What defines a valid substitute for the MAX4690CWE+? A: A valid substitute must maintain identical electrical parameters including SPST-NO switch configuration, 2-circuit topology, 1.25Ohm on-state resistance, 90mOhm channel matching, and the specified supply voltage ranges. The package must be 16-SOIC surface mount, and compliance certifications (RoHS3, MSL 1) must be equivalent or superior.

Q: Can the MAX4690CWE+ be replaced with a different package variant? A: No. The 16-SOIC (0.295", 7.50mm Width) package is a critical mechanical specification. Different package types (such as TSSOP or QFN variants) are not interchangeable without PCB redesign and re-qualification.

Q: Are there any temperature derating considerations for the MAX4690CWE+? A: The specified operating temperature range is 0°C to 70°C. Applications requiring operation outside this range require alternative device selection with extended temperature specifications.

Q: What is the significance of the 90mOhm channel-to-channel matching specification? A: Channel-to-channel matching (ΔRon) of 90mOhm ensures consistent on-state resistance between the two circuits within the device. This parameter is critical for applications requiring balanced signal switching and is a mandatory matching criterion for substitutes.

Q: Does the MAX4690CWE+ require special handling during assembly? A: The MSL 1 (Unlimited) rating indicates no moisture sensitivity restrictions. Standard PCB assembly processes and storage conditions are acceptable without special precautions.

Q: What is the crosstalk specification and why is it important? A: Crosstalk of -65dB @ 1MHz indicates the level of signal coupling between the two independent circuits at 1 MHz frequency. This specification is critical for applications with simultaneous multi-channel switching to prevent signal interference and must be matched in substitute parts.

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