MAX333AEAP Equivalent & Substitute Parts

Part Overview

The MAX333AEAP is a 4-circuit SPDT analog switch IC manufactured by Analog Devices Inc./Maxim Integrated, housed in a 20-SSOP surface mount package. This component functions as a 2:1 multiplexer/demultiplexer with 45Ohm on-state resistance, designed for signal routing and switching applications across supply voltages of 10V to 30V (single supply) or ±4.5V to ±20V (dual supply).

The MAX333AEAP is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and access components with active production status and improved compliance certifications.

Key Parameters

Parameter	Value
Switch Circuit Configuration	SPDT (Single Pole Double Throw)
Multiplexer/Demultiplexer Circuit	2:1
Number of Circuits	4
On-State Resistance (Max)	45Ohm
Channel-to-Channel Matching (ΔRon)	2Ohm (Max)
Voltage - Supply, Single (V+)	10V ~ 30V
Voltage - Supply, Dual (V±)	±4.5V ~ 20V
Switch Time (Ton, Toff) (Max)	175ns, 145ns
Charge Injection	2pC
Channel Capacitance (CS(off), CD(off))	5pF
Current - Leakage (IS(off)) (Max)	250pA
Crosstalk	-78dB @ 1MHz
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	20-SSOP (0.209", 5.30mm Width)
Mounting Type	Surface Mount
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MAX333AEAP is determined by the following critical parameters:

Switch Circuit Configuration: SPDT topology must be maintained
Number of Circuits: 4-circuit configuration required
Multiplexer/Demultiplexer Circuit: 2:1 ratio required
Package / Case: 20-SSOP form factor required for PCB compatibility
Operating Temperature Range: -40°C ~ 85°C minimum requirement
On-State Resistance: Maximum 45Ohm acceptable; lower values provide improved performance
Supply Voltage Compatibility: Single supply (10V ~ 30V) or dual supply (±4.5V ~ 20V) minimum ranges

Substitute parts are grouped into two categories:

Category 1 - Direct Functional Equivalents (Analog Devices Inc./Maxim Integrated)

MAX333AEAP+ (active product status, improved RoHS compliance)
ADG333ABRSZ and ADG333ABRSZ-REEL (enhanced performance specifications, active status)

Category 2 - Cross-Manufacturer Alternative (Renesas Electronics Corporation)

ISL43240IAZ and ISL43240IAZ-T (lower on-state resistance, improved switching speed, active status)

All substitute parts maintain the 20-SSOP package, 4-circuit SPDT configuration, and -40°C ~ 85°C operating temperature range.

Parameter Comparison

Parameter	MAX333AEAP	MAX333AEAP+	ADG333ABRSZ	ADG333ABRSZ-REEL	ISL43240IAZ	ISL43240IAZ-T
Switch Circuit	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT
Multiplexer/Demultiplexer	2:1	2:1	2:1	2:1	2:1	2:1
Number of Circuits	4	4	4	4	4	4
On-State Resistance (Max)	45Ohm	45Ohm	45Ohm	45Ohm	25Ohm	25Ohm
Channel-to-Channel Matching (ΔRon)	2Ohm (Max)	2Ohm (Max)	5Ohm	5Ohm	500mOhm	500mOhm
Voltage - Supply, Single (V+)	10V ~ 30V	10V ~ 30V	3V ~ 30V	3V ~ 30V	2.7V ~ 12V	2.7V ~ 12V
Voltage - Supply, Dual (V±)	±4.5V ~ 20V	±4.5V ~ 20V	±3V ~ 20V	±3V ~ 20V	±2V ~ 6V	±2V ~ 6V
Switch Time Ton (Max)	175ns	175ns	90ns (Typ)	90ns (Typ)	65ns	65ns
Switch Time Toff (Max)	145ns	145ns	80ns (Typ)	80ns (Typ)	50ns	50ns
Charge Injection	2pC	2pC	2pC	2pC	5pC (Max)	5pC (Max)
Channel Capacitance (CS(off), CD(off))	5pF	5pF	7pF	7pF	10pF, 10pF	10pF, 10pF
Current - Leakage (IS(off)) (Max)	250pA	250pA	250pA	250pA	200pA	200pA
Crosstalk	-78dB @ 1MHz	-78dB @ 1MHz	-85dB @ 1MHz	-85dB @ 1MHz	-92dB @ 1MHz	-92dB @ 1MHz
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	20-SSOP	20-SSOP	20-SSOP	20-SSOP	20-SSOP	20-SSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)	3 (168 Hours)

Engineering Selection Recommendations

For Direct Replacement with Improved Compliance:

MAX333AEAP+ is the primary substitute when maintaining Analog Devices Inc./Maxim Integrated sourcing. This part is functionally identical to the MAX333AEAP with identical electrical specifications but carries active product status and ROHS3 compliance certification. Packaging options include Tube format.

For Enhanced Performance within Analog Devices Inc. Portfolio:

ADG333ABRSZ and ADG333ABRSZ-REEL offer improved switching performance (90ns/80ns typical versus 175ns/145ns maximum) and superior crosstalk isolation (-85dB versus -78dB @ 1MHz). Both parts maintain 45Ohm on-state resistance and are ROHS3 compliant with active product status. ADG333ABRSZ-REEL provides Cut Tape and Digi-Reel packaging for high-volume applications.

For Cross-Manufacturer Alternative with Superior Switching Characteristics:

ISL43240IAZ-T (Renesas Electronics Corporation, Tape & Reel packaging, active status) provides the fastest switching performance (65ns/50ns) and lowest on-state resistance (25Ohm), resulting in superior crosstalk performance (-92dB @ 1MHz). This part is ROHS3 compliant. Supply voltage range is narrower (2.7V ~ 12V single supply, ±2V ~ 6V dual supply) compared to the MAX333AEAP. Moisture sensitivity level is MSL 3 (168 hours) versus MSL 1 for the original part.

ISL43240IAZ (Tube packaging) carries obsolete product status and should not be selected for new designs despite active inventory availability.

Compliance and Certification:

All recommended active substitutes (MAX333AEAP+, ADG333ABRSZ, ADG333ABRSZ-REEL, ISL43240IAZ-T) carry ROHS3 compliance and REACH Unaffected status, meeting modern regulatory requirements. The original MAX333AEAP is RoHS non-compliant.

Frequently Asked Questions (FAQ)

Q: Can MAX333AEAP+ be used as a direct drop-in replacement for MAX333AEAP?

A: Yes. MAX333AEAP+ maintains identical electrical specifications, package form factor (20-SSOP), and pin configuration. The primary differences are active product status and ROHS3 compliance certification. Packaging format differs (Tube versus unspecified for the original part).

Q: What are the key differences between ADG333ABRSZ and ISL43240IAZ-T?

A: Both parts maintain the 4-circuit SPDT 2:1 configuration and 20-SSOP package. ADG333ABRSZ has 45Ohm on-state resistance with 90ns/80ns switching times. ISL43240IAZ-T has 25Ohm on-state resistance with 65ns/50ns switching times, providing superior speed and lower resistance. ISL43240IAZ-T has narrower supply voltage ranges (2.7V ~ 12V single supply versus 3V ~ 30V for ADG333ABRSZ) and higher moisture sensitivity level (MSL 3 versus MSL 1).

Q: Is ISL43240IAZ suitable for new designs?

A: No. ISL43240IAZ carries obsolete product status. ISL43240IAZ-T (Tape & Reel packaging, active status) is the recommended Renesas alternative for new designs.

Q: What supply voltage compatibility must be verified when substituting?

A: The original MAX333AEAP operates at 10V ~ 30V (single supply) or ±4.5V ~ 20V (dual supply). ADG333ABRSZ supports wider ranges (3V ~ 30V single, ±3V ~ 20V dual). ISL43240IAZ-T has narrower ranges (2.7V ~ 12V single, ±2V ~ 6V dual). Verify that the substitute part's supply voltage range encompasses the application's operating requirements.

Q: Are there packaging format differences between substitutes?

A: Yes. MAX333AEAP+ is available in Tube format. ADG333ABRSZ is available in Tube format. ADG333ABRSZ-REEL is available in Cut Tape and Digi-Reel format for automated assembly. ISL43240IAZ-T is available in Tape & Reel format. All parts use the same 20-SSOP case outline.

Q: What is the impact of moisture sensitivity level differences?

A: The original MAX333AEAP and all Analog Devices substitutes have MSL 1 (Unlimited), meaning no moisture-related storage restrictions. ISL43240IAZ-T has MSL 3 (168 hours), requiring controlled storage conditions and bake-out procedures before reflow soldering if storage exceeds 168 hours at 30°C / 60% RH.

Q: Which substitute offers the best crosstalk performance?

A: ISL43240IAZ-T provides the best crosstalk isolation at -92dB @ 1MHz, compared to -85dB for ADG333ABRSZ and -78dB for the original MAX333AEAP. This is relevant for applications requiring high signal integrity and minimal cross-channel interference.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message