MAX4533CAP Equivalent & Substitute Parts

Part Overview

The MAX4533CAP is a 4-circuit SPDT (Single Pole Double Throw) 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 an on-state resistance of 175Ω and is designed for signal routing applications in analog systems.

The MAX4533CAP is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this interface component.

Key Parameters

Parameter	Value
Switch Circuit Configuration	SPDT
Multiplexer/Demultiplexer Circuit	2:1
Number of Circuits	4
On-State Resistance (Max)	175Ω
Channel-to-Channel Matching (ΔRon)	1Ω
Voltage Supply - Single (V+)	9V ~ 36V
Voltage Supply - Dual (V±)	±4.5V ~ 18V
Switch Time (Ton, Toff) Max	250ns, 150ns
Charge Injection	1.5pC
Channel Capacitance (CS(off), CD(off))	5pF
Current - Leakage (IS(off)) Max	20nA
Crosstalk	-66dB @ 1MHz
Operating Temperature	0°C ~ 70°C
Package / Case	20-SSOP (0.209", 5.30mm Width)
Mounting Type	Surface Mount
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the MAX4533CAP is determined by strict equivalence across the following critical parameters:

Functional Architecture: SPDT switch configuration with 2:1 multiplexer/demultiplexer topology and 4 circuits
Package Compatibility: 20-SSOP surface mount package with identical 0.209" (5.30mm) width
Electrical Performance: On-state resistance, channel matching, supply voltage ranges, switching speed, and leakage current
Environmental Specifications: Operating temperature range and moisture sensitivity level

Substitute parts are grouped into two categories:

Category 1 - Direct Functional Equivalents (Same Base Specifications)

MAX4533CAP+ (Analog Devices Inc./Maxim Integrated): Identical electrical specifications with active product status and improved RoHS3 compliance

Category 2 - Performance-Enhanced Alternatives (Superior Electrical Characteristics)

ADG333ABRSZ and ADG333ABRSZ-REEL (Analog Devices Inc.): Lower on-state resistance (45Ω vs 175Ω), faster switching times, improved crosstalk performance, extended operating temperature range (-40°C ~ 85°C), active product status
ISL43240IAZ and ISL43240IAZ-T (Renesas Electronics Corporation): Lowest on-state resistance (25Ω), fastest switching times, superior crosstalk performance (-92dB), extended operating temperature range, active product status (ISL43240IAZ-T only)

Parameter Comparison

Parameter	MAX4533CAP	MAX4533CAP+	ADG333ABRSZ / ADG333ABRSZ-REEL	ISL43240IAZ / ISL43240IAZ-T
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Analog Devices Inc.	Renesas Electronics Corporation
Switch Circuit	SPDT	SPDT	SPDT	SPDT
Multiplexer/Demultiplexer Circuit	2:1	2:1	2:1	2:1
Number of Circuits	4	4	4	4
On-State Resistance (Max)	175Ω	175Ω	45Ω	25Ω
Channel-to-Channel Matching (ΔRon)	1Ω	1Ω	5Ω	500mΩ
Voltage Supply - Single (V+)	9V ~ 36V	9V ~ 36V	3V ~ 30V	2.7V ~ 12V
Voltage Supply - Dual (V±)	±4.5V ~ 18V	±4.5V ~ 18V	±3V ~ 20V	±2V ~ 6V
Switch Time Ton (Max)	250ns	250ns	90ns (Typ)	65ns
Switch Time Toff (Max)	150ns	150ns	80ns (Typ)	50ns
Charge Injection	1.5pC	1.5pC	2pC	5pC (Max)
Channel Capacitance (CS(off), CD(off))	5pF	5pF	7pF	10pF, 10pF
Current - Leakage (IS(off)) Max	20nA	20nA	250pA	200pA
Crosstalk	-66dB @ 1MHz	-66dB @ 1MHz	-85dB @ 1MHz	-92dB @ 1MHz
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	20-SSOP	20-SSOP	20-SSOP	20-SSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Obsolete (IAZ) / Active (IAZ-T)
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement with Identical Specifications: Select MAX4533CAP+ when the design requires exact electrical equivalence to the original MAX4533CAP. This part maintains identical on-state resistance (175Ω), switching times, and supply voltage ranges while offering active product status and ROHS3 compliance. Packaging options include Tube format for standard applications.

For Enhanced Performance in New Designs or Redesigns: The ADG333ABRSZ and ADG333ABRSZ-REEL offer superior electrical performance with significantly lower on-state resistance (45Ω), faster switching times (90ns/80ns typical), and improved crosstalk performance (-85dB). These parts support extended operating temperature range (-40°C ~ 85°C) and maintain active product status with ROHS3 compliance. Packaging is available in Tube (ADG333ABRSZ) or Cut Tape & Digi-Reel format (ADG333ABRSZ-REEL).

For Lowest On-State Resistance and Fastest Switching Performance: The ISL43240IAZ-T (Renesas Electronics Corporation) delivers the lowest on-state resistance (25Ω), fastest switching times (65ns/50ns), and superior crosstalk performance (-92dB @ 1MHz). This part is classified as active and ROHS3 compliant. Note that ISL43240IAZ-T operates with reduced supply voltage ranges (2.7V ~ 12V single supply, ±2V ~ 6V dual supply) compared to the original MAX4533CAP. Verify supply voltage compatibility before selection. Packaging is Tape & Reel format.

Compliance Considerations: All substitute parts listed are ROHS3 compliant, addressing the RoHS non-compliance status of the original MAX4533CAP. All parts maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can MAX4533CAP+ be used as a direct drop-in replacement for MAX4533CAP? A: Yes. MAX4533CAP+ maintains identical electrical specifications including on-state resistance (175Ω), switching times (250ns/150ns), supply voltage ranges (9V ~ 36V single, ±4.5V ~ 18V dual), and 20-SSOP package dimensions. The primary differences are active product status and ROHS3 compliance.

Q: What are the key differences between MAX4533CAP and ADG333ABRSZ? A: ADG333ABRSZ offers superior performance with lower on-state resistance (45Ω vs 175Ω), faster switching times (90ns/80ns typical vs 250ns/150ns), improved crosstalk (-85dB vs -66dB), and extended operating temperature range (-40°C ~ 85°C vs 0°C ~ 70°C). Both maintain 4-circuit SPDT 2:1 multiplexer architecture in 20-SSOP packages. Supply voltage ranges differ: ADG333ABRSZ supports 3V ~ 30V single supply and ±3V ~ 20V dual supply.

Q: Is ISL43240IAZ-T compatible with all MAX4533CAP applications? A: ISL43240IAZ-T provides superior electrical performance but operates with narrower supply voltage ranges (2.7V ~ 12V single supply, ±2V ~ 6V dual supply) compared to MAX4533CAP (9V ~ 36V single, ±4.5V ~ 18V dual). Verify that your application's supply voltages fall within ISL43240IAZ-T specifications before selection. All other functional parameters (SPDT 2:1 multiplexer, 4 circuits, 20-SSOP package) are compatible.

Q: What is the difference between ADG333ABRSZ and ADG333ABRSZ-REEL? A: Both parts are electrically identical with identical specifications. The difference is packaging format: ADG333ABRSZ is supplied in Tube format, while ADG333ABRSZ-REEL is supplied in Cut Tape & Digi-Reel format. Select based on your procurement and assembly process requirements.

Q: Are all substitute parts available in the same 20-SSOP package? A: Yes. All substitute parts (MAX4533CAP+, ADG333ABRSZ, ADG333ABRSZ-REEL, ISL43240IAZ, ISL43240IAZ-T) are housed in 20-SSOP surface mount packages with identical 0.209" (5.30mm) width, ensuring PCB layout compatibility.

Q: Which substitute part should I select for a new design? A: For new designs, ADG333ABRSZ or ISL43240IAZ-T are recommended based on performance requirements. ADG333ABRSZ offers balanced performance improvement with broader supply voltage compatibility. ISL43240IAZ-T delivers maximum performance but requires verification of supply voltage compatibility with your application.

Q: Are all substitute parts RoHS compliant? A: Yes. All substitute parts listed (MAX4533CAP+, ADG333ABRSZ, ADG333ABRSZ-REEL, ISL43240IAZ, ISL43240IAZ-T) are ROHS3 compliant, addressing the RoHS non-compliance status of the original MAX4533CAP.

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