MAX4618ESE Equivalent & Substitute Parts

Part Overview

The MAX4618ESE is a dual SP4T (Single-Pole, 4-Throw) analog switch IC manufactured by Analog Devices Inc./Maxim Integrated. This 16-SOIC surface mount device provides two independent 4:1 multiplexer/demultiplexer circuits with 10Ohm on-state resistance, designed for signal routing and switching applications in the 2V to 5.5V supply range.

The MAX4618ESE is classified as obsolete. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance of systems utilizing this component.

Key Parameters

Parameter	Value
Switch Circuit Configuration	SP4T (Single-Pole, 4-Throw)
Number of Circuits	2
Multiplexer/Demultiplexer Circuit	4:1
On-State Resistance (Max)	10Ohm
Channel-to-Channel Matching (ΔRon)	200mOhm
Supply Voltage Range (Single)	2V ~ 5.5V
Switch Time (Ton/Toff)	15ns / 10ns
Charge Injection	3pC
Channel Capacitance (CS(off) / CD(off))	5pF / 15pF
Leakage Current (IS(off)) Max	1nA
Crosstalk	-96dB @ 100kHz
Operating Temperature Range	-40°C ~ 85°C
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution of the MAX4618ESE is determined by strict equivalence across the following critical parameters:

Switch topology: SP4T configuration with 2 independent circuits
Multiplexer ratio: 4:1 channel selection
On-state resistance: 10Ohm maximum
Channel matching: 200mOhm ΔRon specification
Supply voltage compatibility: 2V ~ 5.5V single supply operation
Switching performance: 15ns Ton / 10ns Toff maximum
Signal integrity: Charge injection (3pC), crosstalk (-96dB @ 100kHz)
Package compatibility: 16-SOIC form factor with identical pinout
Temperature range: -40°C ~ 85°C operation

Only parts meeting all these parameters without deviation are classified as direct substitutes.

Parameter Comparison

Parameter	MAX4618ESE (Main Part)	MAX4618ESE+ (Substitute)
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Switch Circuit	SP4T	SP4T
Number of Circuits	2	2
Multiplexer/Demultiplexer Circuit	4:1	4:1
On-State Resistance (Max)	10Ohm	10Ohm
Channel-to-Channel Matching (ΔRon)	200mOhm	200mOhm
Supply Voltage (V+)	2V ~ 5.5V	2V ~ 5.5V
Switch Time (Ton, Toff) Max	15ns, 10ns	15ns, 10ns
Charge Injection	3pC	3pC
Channel Capacitance (CS(off), CD(off))	5pF, 15pF	5pF, 15pF
Leakage Current (IS(off)) Max	1nA	1nA
Crosstalk	-96dB @ 100kHz	-96dB @ 100kHz
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	16-SOIC (0.154", 3.90mm Width)	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The MAX4618ESE+ is a direct functional equivalent to the MAX4618ESE with identical electrical and mechanical specifications. The primary distinction is product lifecycle status and regulatory compliance.

MAX4618ESE (Obsolete): This part is no longer in active production. Existing inventory may be available through authorized distributors, but long-term supply cannot be guaranteed. The part does not meet current RoHS3 compliance requirements.

MAX4618ESE+ (Active): This variant is in active production with confirmed inventory availability. It meets ROHS3 compliance standards, making it suitable for new designs and applications subject to environmental regulations. All electrical and thermal characteristics are identical to the obsolete variant, ensuring pin-for-pin and functional compatibility.

For new designs or ongoing production requiring regulatory compliance, the MAX4618ESE+ is the appropriate selection. For legacy system maintenance where RoHS compliance is not a requirement, either part may be used interchangeably based on availability.

Frequently Asked Questions (FAQ)

Q: Can MAX4618ESE+ be used as a direct replacement for MAX4618ESE in existing designs?

A: Yes. The MAX4618ESE+ is electrically and mechanically identical to the MAX4618ESE. Both parts share the same pinout, package footprint (16-SOIC), and all electrical specifications. No circuit modifications are required for substitution.

Q: What is the difference between MAX4618ESE and MAX4618ESE+?

A: The primary differences are product status and compliance certification. The MAX4618ESE is obsolete and RoHS non-compliant. The MAX4618ESE+ is in active production and ROHS3 compliant. Electrical performance and package specifications are identical.

Q: Why is the MAX4618ESE classified as obsolete?

A: The MAX4618ESE has been discontinued by the manufacturer. Analog Devices Inc./Maxim Integrated has transitioned production to the MAX4618ESE+ variant, which incorporates current environmental compliance standards.

Q: Are there any thermal or performance differences between these parts?

A: No. Both parts operate across the identical temperature range (-40°C ~ 85°C) and deliver identical switching performance, on-state resistance, and signal integrity specifications.

Q: What packaging options are available for these parts?

A: Both the MAX4618ESE and MAX4618ESE+ are supplied in 16-SOIC surface mount packages. The MAX4618ESE+ is available in Tube packaging, while the MAX4618ESE packaging specification is not detailed in the provided data.

Q: Are these parts suitable for high-speed signal routing applications?

A: Yes. Both parts meet the switching time specifications (15ns Ton / 10ns Toff) and crosstalk performance (-96dB @ 100kHz) required for signal routing in the specified voltage range (2V ~ 5.5V).

Q: What is the moisture sensitivity level for these parts?

A: Both parts have a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating minimal moisture absorption risk during storage and handling.

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