MAX4523CSE Equivalent & Substitute Parts

Part Overview

The MAX4523CSE is a 4-circuit IC switch with SPST (Single Pole Single Throw) NO/NC configuration, designed for signal routing and switching applications in analog and mixed-signal systems. This component features 100Ohm on-state resistance and operates across a wide supply voltage range of 2V to 12V (single supply) or ±2V to 6V (dual supply). The part is currently classified as obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Specification
Switch Circuit Type	SPST - NO/NC
Number of Circuits	4
On-State Resistance (Max)	100Ohm
Channel-to-Channel Matching (ΔRon)	1Ohm
Voltage - Supply, Single (V+)	2V ~ 12V
Voltage - Supply, Dual (V±)	±2V ~ 6V
Switch Time (Ton, Toff) (Max)	80ns, 30ns
Charge Injection	1pC
Channel Capacitance (CS(off), CD(off))	2pF, 2pF
Current - Leakage (IS(off)) (Max)	1nA
Crosstalk	-90dB @ 100kHz
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution eligibility for the MAX4523CSE is determined by strict equivalence across the following critical parameters:

Switch circuit configuration (SPST - NO/NC)
Number of circuits (4)
On-state resistance maximum (100Ohm)
Channel-to-channel matching tolerance (1Ohm)
Supply voltage ranges (2V ~ 12V single; ±2V ~ 6V dual)
Switch timing specifications (80ns Ton, 30ns Toff maximum)
Charge injection (1pC)
Channel capacitance values (2pF off-state)
Leakage current specification (1nA maximum)
Crosstalk performance (-90dB @ 100kHz)
Operating temperature range (0°C ~ 70°C)
Package form factor (16-SOIC)

Only parts meeting all these parameters qualify as direct substitutes. The MAX4523CSE+ is identified as a direct equivalent based on identical electrical and mechanical specifications.

Parameter Comparison

Parameter	MAX4523CSE (Main Part)	MAX4523CSE+ (Substitute)
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Switch Circuit	SPST - NO/NC	SPST - NO/NC
Number of Circuits	4	4
On-State Resistance (Max)	100Ohm	100Ohm
Channel-to-Channel Matching (ΔRon)	1Ohm	1Ohm
Voltage - Supply, Single (V+)	2V ~ 12V	2V ~ 12V
Voltage - Supply, Dual (V±)	±2V ~ 6V	±2V ~ 6V
Switch Time (Ton, Toff) (Max)	80ns, 30ns	80ns, 30ns
Charge Injection	1pC	1pC
Channel Capacitance (CS(off), CD(off))	2pF, 2pF	2pF, 2pF
Current - Leakage (IS(off)) (Max)	1nA	1nA
Crosstalk	-90dB @ 100kHz	-90dB @ 100kHz
Operating Temperature	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)
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 MAX4523CSE+ is the direct functional equivalent of the MAX4523CSE. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical and mechanical specifications across all critical switching parameters.

The primary distinction between these parts is product lifecycle status and regulatory compliance. The MAX4523CSE is classified as obsolete, while the MAX4523CSE+ maintains active product status. Additionally, the MAX4523CSE+ achieves ROHS3 compliance, whereas the original MAX4523CSE is RoHS non-compliant. Both parts maintain identical moisture sensitivity classification (MSL 1) and REACH status.

For new designs and ongoing system support where the MAX4523CSE is no longer available, the MAX4523CSE+ provides full electrical and mechanical compatibility with no design modifications required.

Frequently Asked Questions (FAQ)

Q: Can MAX4523CSE+ be used as a direct replacement for MAX4523CSE in existing designs?

A: Yes. The MAX4523CSE+ is electrically and mechanically identical to the MAX4523CSE. All switching parameters, supply voltage ranges, timing specifications, and package dimensions are equivalent. No circuit modifications are necessary.

Q: What is the difference between MAX4523CSE and MAX4523CSE+?

A: The parts are functionally identical. The primary differences are product status (MAX4523CSE is obsolete; MAX4523CSE+ is active) and regulatory compliance (MAX4523CSE+ is ROHS3 compliant). Packaging differs only in supplier delivery format (MAX4523CSE is unspecified; MAX4523CSE+ is supplied in tubes).

Q: Are there any performance differences between these parts?

A: No. Both parts meet identical specifications for on-state resistance (100Ohm), switch timing (80ns Ton, 30ns Toff), charge injection (1pC), leakage current (1nA), and crosstalk performance (-90dB @ 100kHz).

Q: What supply voltages are supported by these parts?

A: Both parts support single supply operation from 2V to 12V or dual supply operation from ±2V to 6V.

Q: Is the 16-SOIC package compatible with existing PCB layouts?

A: Yes. Both parts use the identical 16-SOIC package (0.154" width, 3.90mm) with surface mount configuration. No PCB redesign is required.

Q: What is the operating temperature range for these parts?

A: Both parts operate across 0°C to 70°C ambient temperature range.

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