MAX4066CPD Equivalent & Substitute Parts

Part Overview

The MAX4066CPD is a 4-circuit SPST-NO analog switch IC manufactured by Analog Devices Inc./Maxim Integrated, designed for signal routing and multiplexing applications in the 2V to 16V supply range. The device features 45Ohm on-state resistance, 100MHz bandwidth, and 14-DIP through-hole packaging. The MAX4066CPD is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Switch Circuit Type	SPST - NO (Single Pole Single Throw - Normally Open)
Number of Circuits	4
On-State Resistance (Max)	45Ohm
Channel-to-Channel Matching (ΔRon)	500mOhm
Voltage - Supply, Single (V+)	2V ~ 16V
Switch Time (Ton, Toff) (Max)	100ns, 75ns
-3dB Bandwidth	100MHz
Charge Injection	1pC
Channel Capacitance (CS(off), CD(off))	9pF, 9pF
Current - Leakage (IS(off)) (Max)	1nA
Crosstalk	-86dB @ 1MHz
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	14-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution eligibility for the MAX4066CPD is determined by the following critical parameters:

Primary Substitution Criteria:

Switch circuit topology: SPST - NO (4 circuits)
Multiplexer/Demultiplexer circuit: 1:1
Package type: 14-DIP through-hole
On-state resistance compatibility: Maximum 45Ohm for direct drop-in replacement
Supply voltage range: Minimum 2V ~ 16V coverage

Substitute Categories:

Direct Equivalent (MAX4066CPD+): Identical electrical specifications and package. Differs only in product status (Active vs. Obsolete) and RoHS compliance. Provides pin-for-pin compatibility with no design modifications required.

Functional Equivalent (CD74HC4066E): Maintains SPST-NO 4-circuit topology and 14-DIP package. Differs in on-state resistance (70Ohm vs. 45Ohm), supply voltage range (2V ~ 10V vs. 2V ~ 16V), and operating temperature range (-55°C ~ 125°C vs. 0°C ~ 70°C). Substitution requires verification of circuit tolerance to higher on-state resistance and reduced supply voltage ceiling.

Parameter Comparison

Parameter	MAX4066CPD (Main)	MAX4066CPD+ (Direct Equivalent)	CD74HC4066E (Functional Equivalent)
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Texas Instruments
Product Status	Obsolete	Active	Last Time Buy
Switch Circuit	SPST - NO	SPST - NO	SPST - NO
Number of Circuits	4	4	4
On-State Resistance (Max)	45Ohm	45Ohm	70Ohm
Channel-to-Channel Matching (ΔRon)	500mOhm	500mOhm	500mOhm
Voltage - Supply, Single (V+)	2V ~ 16V	2V ~ 16V	2V ~ 10V
-3dB Bandwidth	100MHz	100MHz	200MHz
Charge Injection	1pC	1pC	Not specified
Channel Capacitance (CS(off), CD(off))	9pF, 9pF	9pF, 9pF	5pF
Current - Leakage (IS(off)) (Max)	1nA	1nA	100nA
Crosstalk	-86dB @ 1MHz	-86dB @ 1MHz	-72dB @ 1MHz
Operating Temperature	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	-55°C ~ 125°C (TA)
Package / Case	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (No Design Changes): Select MAX4066CPD+ when available. This part maintains identical electrical performance and pin configuration while offering Active product status and ROHS3 compliance. No circuit modifications or re-qualification are required.

For Functional Substitution (Design Verification Required): The CD74HC4066E from Texas Instruments provides SPST-NO 4-circuit switching in the same 14-DIP package. However, the following parameter differences require circuit-level evaluation:

On-state resistance increases from 45Ohm to 70Ohm, affecting signal attenuation and impedance matching in analog signal paths
Supply voltage range reduces to 2V ~ 10V, eliminating compatibility with applications requiring 10V to 16V operation
Leakage current increases from 1nA to 100nA, impacting precision analog applications
Crosstalk performance degrades from -86dB to -72dB @ 1MHz

The CD74HC4066E is suitable only for applications where these parameter variations fall within acceptable design tolerances. Extended operating temperature range (-55°C ~ 125°C) and higher bandwidth (200MHz) may provide advantages in specific thermal or frequency-dependent applications.

Frequently Asked Questions (FAQ)

Q: Can MAX4066CPD+ be used as a direct replacement for MAX4066CPD?

A: Yes. MAX4066CPD+ is electrically and mechanically identical to MAX4066CPD. The primary differences are product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. non-compliant). No design modifications are required for substitution.

Q: What are the key limitations when substituting CD74HC4066E for MAX4066CPD?

A: The CD74HC4066E differs in three critical parameters: on-state resistance (70Ohm vs. 45Ohm), maximum supply voltage (10V vs. 16V), and leakage current (100nA vs. 1nA). Applications operating above 10V supply or requiring low-impedance signal paths cannot use this substitute without circuit redesign.

Q: Are all substitute parts available in the same 14-DIP package?

A: Yes. Both MAX4066CPD+ and CD74HC4066E are supplied in 14-DIP (0.300", 7.62mm) through-hole packages, ensuring mechanical compatibility with existing PCB layouts.

Q: What is the difference between RoHS non-compliant and ROHS3 compliant status?

A: RoHS non-compliant parts (MAX4066CPD) may contain restricted substances such as lead. ROHS3 compliant parts (MAX4066CPD+, CD74HC4066E) meet European Union Restriction of Hazardous Substances directives. Selection depends on regulatory requirements for the end application and target market.

Q: Which substitute part should be selected for new designs?

A: MAX4066CPD+ is the preferred choice for new designs, offering identical performance to the obsolete MAX4066CPD with Active product status and ROHS3 compliance. CD74HC4066E should be considered only when the parameter differences provide specific advantages (extended temperature range, higher bandwidth) and circuit tolerance analysis confirms compatibility.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message