MAX4623ESE Equivalent & Substitute Parts

Part Overview

The MAX4623ESE is a 2-circuit IC switch with DPST-NO configuration, 5Ohm on-state resistance, and 16-SOIC surface mount packaging manufactured by Analog Devices Inc./Maxim Integrated. This part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. The device operates across single supply (4.5V to 36V) or dual supply (±4.5V to ±18V) configurations with 250ns/200ns switching times and low leakage current characteristics.

Key Parameters

Parameter	Value
Switch Circuit Configuration	DPST - NO (Normally Open)
Multiplexer/Demultiplexer Circuit	2:1
Number of Circuits	2
On-State Resistance (Max)	5Ohm
Channel-to-Channel Matching (ΔRon)	250mOhm
Voltage - Supply, Single (V+)	4.5V ~ 36V
Voltage - Supply, Dual (V±)	±4.5V ~ ±18V
Switch Time (Ton, Toff) (Max)	250ns, 200ns
Charge Injection	480pC
Channel Capacitance (CS(off), CD(off))	34pF, 34pF
Current - Leakage (IS(off)) (Max)	500pA
Crosstalk	-60dB @ 1MHz
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MAX4623ESE is determined by the following critical parameters:

Primary Compatibility Criteria:

Switch circuit configuration: DPST - NO
Multiplexer/demultiplexer circuit: 2:1
Number of circuits: 2
Package type: 16-SOIC surface mount
Operating temperature range: -40°C ~ 85°C
Moisture sensitivity level: 1 (Unlimited)

Secondary Performance Criteria:

On-state resistance tolerance
Supply voltage ranges (single and dual)
Switching speed characteristics
Leakage current specifications
Crosstalk performance

The substitute parts identified maintain identical switch topology, circuit count, and physical packaging. Variations in on-state resistance, switching times, and charge injection are acceptable within the scope of equivalent substitution, provided the application requirements permit these parameter differences.

Parameter Comparison

Parameter	MAX4623ESE	MAX4623ESE+	DG405DY-E3	DG405DY-T1-E3
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Vishay Siliconix	Vishay Siliconix
Product Status	Obsolete	Active	Active	Active
Switch Circuit	DPST - NO	DPST - NO	DPST - NO	DPST - NO
Multiplexer/Demultiplexer Circuit	2:1	2:1	2:1	2:1
Number of Circuits	2	2	2	2
On-State Resistance (Max)	5Ohm	5Ohm	45Ohm	45Ohm
Channel-to-Channel Matching (ΔRon)	250mOhm	250mOhm	Not specified	Not specified
Voltage - Supply, Single (V+)	4.5V ~ 36V	4.5V ~ 36V	13V ~ 36V	13V ~ 36V
Voltage - Supply, Dual (V±)	±4.5V ~ ±18V	±4.5V ~ ±18V	±7V ~ ±22V	±7V ~ ±22V
Switch Time (Ton, Toff) (Max)	250ns, 200ns	250ns, 200ns	150ns, 100ns	150ns, 100ns
Charge Injection	480pC	480pC	60pC	60pC
Channel Capacitance (CS(off), CD(off))	34pF, 34pF	34pF, 34pF	12pF, 12pF	12pF, 12pF
Current - Leakage (IS(off)) (Max)	500pA	500pA	500pA	500pA
Crosstalk	-60dB @ 1MHz	-60dB @ 1MHz	-90dB @ 1MHz	-90dB @ 1MHz
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	16-SOIC (0.154", 3.90mm Width)	16-SOIC (0.154", 3.90mm Width)	16-SOIC (0.154", 3.90mm Width)	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Packaging	Not specified	Tube	Tube	Tape & Reel (TR)
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

MAX4623ESE+ (Direct Manufacturer Upgrade)

The MAX4623ESE+ is the primary substitute for the obsolete MAX4623ESE. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical specifications, including 5Ohm on-state resistance, 250ns/200ns switching times, and 480pC charge injection. The MAX4623ESE+ is active in production status and ROHS3 compliant, addressing regulatory requirements for new designs. Packaging is available in tube format. This part provides direct functional equivalence with no performance trade-offs.

DG405DY-E3 and DG405DY-T1-E3 (Vishay Siliconix Alternatives)

The DG405DY-E3 and DG405DY-T1-E3 are functionally equivalent DPST-NO 2:1 switch ICs from Vishay Siliconix in identical 16-SOIC packaging. Both parts are active in production and ROHS3 compliant. Key differences include higher on-state resistance (45Ohm versus 5Ohm), faster switching times (150ns/100ns versus 250ns/200ns), lower charge injection (60pC versus 480pC), and improved crosstalk performance (-90dB versus -60dB @ 1MHz). The DG405DY-E3 is supplied in tube packaging, while DG405DY-T1-E3 is supplied in tape and reel format. Selection between these variants depends on packaging requirements for production volume and handling.

Applications requiring the lower on-state resistance of the MAX4623ESE series should prioritize the MAX4623ESE+. Applications where higher on-state resistance is acceptable and improved switching speed or reduced charge injection is beneficial may utilize the DG405DY variants.

Frequently Asked Questions (FAQ)

Q: Can the DG405DY series directly replace the MAX4623ESE in all applications?

A: The DG405DY-E3 and DG405DY-T1-E3 maintain identical switch topology, circuit count, and 16-SOIC packaging. However, the 45Ohm on-state resistance differs from the MAX4623ESE's 5Ohm specification. Applications sensitive to on-state resistance or requiring the lower impedance path should use the MAX4623ESE+ instead. Applications where higher on-state resistance is acceptable may use the DG405DY variants.

Q: What is the difference between DG405DY-E3 and DG405DY-T1-E3?

A: Both parts are electrically identical. The primary difference is packaging format: DG405DY-E3 is supplied in tube packaging, while DG405DY-T1-E3 is supplied in tape and reel format. Selection depends on production volume requirements and assembly line handling preferences.

Q: Is the MAX4623ESE+ a true equivalent to the MAX4623ESE?

A: Yes. The MAX4623ESE+ shares all electrical specifications with the MAX4623ESE, including 5Ohm on-state resistance, 250ns/200ns switching times, 480pC charge injection, and identical supply voltage ranges. The primary difference is product status: MAX4623ESE+ is active in production, while MAX4623ESE is obsolete. The MAX4623ESE+ is ROHS3 compliant.

Q: Are there supply voltage compatibility concerns when substituting these parts?

A: The MAX4623ESE and MAX4623ESE+ support single supply 4.5V to 36V and dual supply ±4.5V to ±18V. The DG405DY variants support single supply 13V to 36V and dual supply ±7V to ±22V. Applications operating below 13V single supply or below ±7V dual supply must use the MAX4623ESE+ to maintain specified performance.

Q: What are the RoHS compliance implications?

A: The MAX4623ESE is RoHS non-compliant. The MAX4623ESE+, DG405DY-E3, and DG405DY-T1-E3 are all ROHS3 compliant. New designs and products subject to RoHS regulations must use one of the compliant alternatives.

Q: How do switching speed differences affect substitution decisions?

A: The MAX4623ESE and MAX4623ESE+ specify 250ns turn-on and 200ns turn-off times. The DG405DY variants specify 150ns turn-on and 100ns turn-off times. Applications requiring the slower switching characteristics of the MAX4623ESE series should use the MAX4623ESE+. Applications where faster switching is beneficial or neutral may use the DG405DY variants.

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