MAX333CPP Equivalent & Substitute Parts

Part Overview

The MAX333CPP is a 4-circuit SPDT (Single Pole Double Throw) analog switch IC manufactured by Analog Devices Inc./Maxim Integrated. This component functions as a 2:1 multiplexer/demultiplexer with an on-state resistance of 250Ohm and operates across single supply voltages of 10V to 30V or dual supply voltages of ±5V to ±18V. The MAX333CPP is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Switch Circuit Configuration	SPDT
Multiplexer/Demultiplexer Circuit	2:1
Number of Circuits	4
On-State Resistance (Max)	250Ohm
Voltage - Supply, Single (V+)	10V ~ 30V
Voltage - Supply, Dual (V±)	±5V ~ 18V
Switch Time (Ton, Toff) (Max)	1µs, 500ns
Channel Capacitance (CS(off), CD(off))	5pF
Current - Leakage (IS(off)) (Max)	5nA
Crosstalk	-78dB @ 1MHz
Operating Temperature	0°C ~ 70°C
Package / Case	20-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the MAX333CPP is determined by strict equivalence across the following electrical and mechanical parameters:

Mandatory Equivalence Criteria:

Switch circuit configuration: SPDT
Multiplexer/demultiplexer circuit: 2:1
Number of circuits: 4
Package type: 20-DIP (0.300", 7.62mm)
Mounting type: Through Hole

Allowable Parameter Variations: Substitute parts may exhibit improvements in the following parameters without compromising functional compatibility:

On-state resistance (lower values acceptable)
Supply voltage ranges (wider ranges acceptable)
Switch timing characteristics (faster switching acceptable)
Leakage current (lower values acceptable)
Crosstalk performance (better isolation acceptable)
Operating temperature range (wider ranges acceptable)
Product status (active parts preferred over obsolete)

The ADG333ABNZ meets all mandatory equivalence criteria and demonstrates superior electrical performance across multiple parameters while maintaining identical package and circuit configuration.

Parameter Comparison

Parameter	MAX333CPP	ADG333ABNZ
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc.
Switch Circuit	SPDT	SPDT
Multiplexer/Demultiplexer Circuit	2:1	2:1
Number of Circuits	4	4
On-State Resistance (Max)	250Ohm	45Ohm
Voltage - Supply, Single (V+)	10V ~ 30V	3V ~ 30V
Voltage - Supply, Dual (V±)	±5V ~ 18V	±3V ~ 20V
Switch Time (Ton, Toff) (Max)	1µs, 500ns	90ns, 80ns (Typ)
Channel Capacitance (CS(off), CD(off))	5pF	7pF
Current - Leakage (IS(off)) (Max)	5nA	250pA
Crosstalk	-78dB @ 1MHz	-85dB @ 1MHz
Operating Temperature	0°C ~ 70°C	-40°C ~ 85°C
Package / Case	20-DIP (0.300", 7.62mm)	20-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant

Engineering Selection Recommendations

The ADG333ABNZ is the direct functional equivalent for MAX333CPP replacement. Selection of ADG333ABNZ is supported by the following factors:

Product Status: The ADG333ABNZ maintains active product status with ongoing manufacturer support, whereas the MAX333CPP is obsolete. Active status ensures continued availability and technical documentation access.

Regulatory Compliance: The ADG333ABNZ is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The MAX333CPP is RoHS non-compliant, presenting compliance constraints for new designs and procurement.

Electrical Performance: The ADG333ABNZ demonstrates superior electrical characteristics including 82% reduction in on-state resistance (45Ohm vs. 250Ohm), 50-fold reduction in leakage current (250pA vs. 5nA), and improved crosstalk isolation (-85dB vs. -78dB @ 1MHz). These improvements enhance signal integrity and reduce power dissipation.

Supply Voltage Flexibility: The ADG333ABNZ supports lower minimum supply voltages (3V single supply, ±3V dual supply) compared to the MAX333CPP (10V single supply, ±5V dual supply), enabling operation in low-voltage applications.

Temperature Range: The ADG333ABNZ operates across -40°C to 85°C, providing extended temperature coverage relative to the MAX333CPP (0°C to 70°C).

Frequently Asked Questions (FAQ)

Q: Can ADG333ABNZ directly replace MAX333CPP in existing designs?

A: Yes. Both components share identical circuit configuration (4-circuit SPDT 2:1 multiplexer), package type (20-DIP), and mounting method (through hole). Pin-for-pin compatibility is maintained. The ADG333ABNZ exhibits superior electrical performance across all comparable parameters.

Q: What are the key differences between MAX333CPP and ADG333ABNZ?

A: Primary differences include on-state resistance (250Ohm vs. 45Ohm), supply voltage ranges (10V-30V single vs. 3V-30V single), switch timing (1µs/500ns vs. 90ns/80ns), leakage current (5nA vs. 250pA), operating temperature range (0°C-70°C vs. -40°C-85°C), and product status (obsolete vs. active). The ADG333ABNZ also provides ROHS3 compliance.

Q: Are there packaging options for ADG333ABNZ?

A: The ADG333ABNZ is supplied in tube packaging. Both MAX333CPP and ADG333ABNZ utilize 20-DIP (0.300", 7.62mm) package format with through-hole mounting.

Q: Does lower on-state resistance in ADG333ABNZ affect circuit design?

A: Lower on-state resistance (45Ohm vs. 250Ohm) in the ADG333ABNZ reduces voltage drop across the switch and decreases power dissipation. This represents an improvement for most applications and does not require design modifications. Circuits designed for MAX333CPP will function with improved performance characteristics when using ADG333ABNZ.

Q: What is the significance of the extended temperature range in ADG333ABNZ?

A: The ADG333ABNZ operates from -40°C to 85°C compared to MAX333CPP's 0°C to 70°C range. This extended range enables deployment in industrial, automotive, and temperature-extreme environments where MAX333CPP cannot be used.

Q: Is RoHS compliance a factor in selecting ADG333ABNZ?

A: Yes. The ADG333ABNZ is ROHS3 compliant, meeting current environmental regulations. The MAX333CPP is RoHS non-compliant, which may restrict its use in new designs and certain markets. ADG333ABNZ is the compliant alternative.

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