MAX4614CUD Equivalent & Substitute Parts

Part Overview

The MAX4614CUD is a 4-circuit SPST-NO IC switch manufactured by Analog Devices Inc./Maxim Integrated, designed for single-supply operation from 2V to 5.5V. This part features 10Ohm on-state resistance, 70MHz bandwidth, and 14-TSSOP surface mount packaging. The MAX4614CUD is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. Substitute parts must maintain functional compatibility across switching characteristics, package form factor, and electrical performance parameters.

Key Parameters

Parameter	MAX4614CUD
Switch Circuit Type	SPST - NO
Number of Circuits	4
Multiplexer/Demultiplexer Circuit	1:1
On-State Resistance (Max)	10Ohm
Channel-to-Channel Matching (ΔRon)	200mOhm
Voltage - Supply, Single (V+)	2V ~ 5.5V
Switch Time (Ton, Toff) (Max)	12ns, 10ns
-3dB Bandwidth	70MHz
Charge Injection	6.5pC
Channel Capacitance (CS(off), CD(off))	5pF, 5pF
Current - Leakage (IS(off)) (Max)	1nA
Crosstalk	-96dB @ 100kHz
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	14-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitute parts for the MAX4614CUD are grouped based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

Switch circuit type: SPST - NO (Single Pole Single Throw - Normally Open)
Number of circuits: 4
Multiplexer configuration: 1:1
Package form factor: 14-TSSOP surface mount
On-state resistance range: 10Ohm to 35Ohm (acceptable variance for general switching applications)
Supply voltage compatibility: Minimum 2V operation required

Secondary Compatibility Factors:

Bandwidth performance: 70MHz or higher
Leakage current specifications
Operating temperature range: Minimum 0°C to 70°C coverage
RoHS compliance status for modern production environments

Substitutes are organized into two categories: direct replacements (identical electrical specifications) and functional equivalents (compatible within specified parameter tolerances).

Parameter Comparison

Part Number	Manufacturer	On-State Resistance (Max)	ΔRon	V+ Supply Range	Ton/Toff (Max)	Bandwidth	Operating Temp	Package	Product Status	RoHS
MAX4614CUD	Analog Devices	10Ohm	200mOhm	2V ~ 5.5V	12ns, 10ns	70MHz	0°C ~ 70°C	14-TSSOP	Obsolete	Non-compliant
MAX4614CUD+	Analog Devices	10Ohm	200mOhm	2V ~ 5.5V	12ns, 10ns	70MHz	0°C ~ 70°C	14-TSSOP	Active	ROHS3 Compliant
74HC4066PW,118	Nexperia USA Inc.	95Ohm	3Ohm	2V ~ 10V	30ns, 20ns	200MHz	-40°C ~ 125°C	14-TSSOP	Active	ROHS3 Compliant
74HCT4066PW,118	NXP USA Inc.	20Ohm (Typ)	3Ohm	4.5V ~ 5.5V	44ns, 30ns	200MHz	-40°C ~ 125°C	14-TSSOP	Active	ROHS3 Compliant
74HCT4066PW-Q100,1	Nexperia USA Inc.	20Ohm (Typ)	3Ohm	4.5V ~ 5.5V	44ns, 30ns	200MHz	-40°C ~ 125°C	14-TSSOP	Active	ROHS3 Compliant
74LV4066PW,118	Nexperia USA Inc.	35Ohm	—	1V ~ 6V	16ns, 28ns	200MHz	-40°C ~ 125°C	14-TSSOP	Active	ROHS3 Compliant
74LVC4066PW,118	Nexperia USA Inc.	10Ohm	—	1.65V ~ 5.5V	3.9ns, 5ns	500MHz	-40°C ~ 125°C	14-TSSOP	Active	ROHS3 Compliant
HCT4066QPWRG4Q1	Texas Instruments	95Ohm	1Ohm	4.5V ~ 5.5V	24ns, 35ns	200MHz	-40°C ~ 125°C	14-TSSOP	Last Time Buy	ROHS3 Compliant
SN74AHC4066DBR	Texas Instruments	75Ohm	2Ohm	2V ~ 5.5V	12ns, 12ns	50MHz	-40°C ~ 85°C	14-SSOP	Last Time Buy	ROHS3 Compliant
SN74AHC4066PW	Texas Instruments	75Ohm	2Ohm	2V ~ 5.5V	12ns, 12ns	50MHz	-40°C ~ 85°C	14-TSSOP	Last Time Buy	ROHS3 Compliant
SN74AHC4066PWR	Texas Instruments	75Ohm	2Ohm	2V ~ 5.5V	12ns, 12ns	50MHz	-40°C ~ 85°C	14-TSSOP	Last Time Buy	ROHS3 Compliant

Engineering Selection Recommendations

Direct Replacement (Identical Specifications): MAX4614CUD+ is the direct active replacement for MAX4614CUD. Both parts share identical electrical specifications including 10Ohm on-state resistance, 70MHz bandwidth, and 14-TSSOP packaging. MAX4614CUD+ is currently active and ROHS3 compliant, making it the preferred choice for new designs and production continuity.

Active Substitutes with Compatible Specifications:

74LVC4066PW,118 provides the closest performance match among active alternatives. This part maintains the 10Ohm on-state resistance of the original MAX4614CUD while offering superior performance characteristics: 500MHz bandwidth, faster switching times (3.9ns/5ns), and extended operating temperature range (-40°C to 125°C). Supply voltage range is 1.65V to 5.5V, which covers the original 2V to 5.5V requirement. This part is ROHS3 compliant and currently in active production with high inventory availability (38,537 pcs).

74HCT4066PW,118 and 74HCT4066PW-Q100,1 are functionally equivalent with 20Ohm typical on-state resistance. These parts are suitable for applications where slightly higher on-state resistance is acceptable. The automotive-qualified variant (74HCT4066PW-Q100,1) includes AEC-Q100 certification. Both offer 200MHz bandwidth and extended temperature range (-40°C to 125°C). Supply voltage is limited to 4.5V to 5.5V, which may restrict use in lower-voltage applications.

74HC4066PW,118 operates across 2V to 10V supply range with 95Ohm on-state resistance and 200MHz bandwidth. This part is suitable for applications requiring wider supply voltage tolerance.

74LV4066PW,118 supports 1V to 6V supply operation with 35Ohm on-state resistance and 200MHz bandwidth, offering the widest supply voltage range among substitutes.

Last Time Buy Status Parts: HCT4066QPWRG4Q1 (Texas Instruments), SN74AHC4066DBR, SN74AHC4066PW, and SN74AHC4066PWR are designated Last Time Buy. These parts remain available but are not recommended for new designs due to end-of-life status. SN74AHC4066 variants feature 75Ohm on-state resistance and 50MHz bandwidth with 2V to 5.5V supply compatibility.

Compliance Considerations: All active substitute parts are ROHS3 compliant, addressing the non-compliance status of the original MAX4614CUD. For automotive applications, 74HCT4066PW-Q100,1 and HCT4066QPWRG4Q1 provide AEC-Q100 qualification.

Frequently Asked Questions (FAQ)

Q: Can MAX4614CUD+ be used as a direct replacement for MAX4614CUD? A: Yes. MAX4614CUD+ is the active equivalent with identical electrical specifications and 14-TSSOP packaging. The only differences are product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. non-compliant). This is the recommended replacement for production continuity.

Q: What is the primary difference between 74LVC4066PW,118 and the original MAX4614CUD? A: Both maintain 10Ohm on-state resistance and 14-TSSOP packaging. The 74LVC4066PW,118 offers superior performance with 500MHz bandwidth versus 70MHz, faster switching times (3.9ns/5ns vs. 12ns/10ns), and extended operating temperature range (-40°C to 125°C vs. 0°C to 70°C). Supply voltage range is 1.65V to 5.5V, which covers the original 2V to 5.5V requirement.

Q: Why do some substitutes have higher on-state resistance values? A: On-state resistance varies by IC design and manufacturing process. Parts with 20Ohm, 35Ohm, 75Ohm, or 95Ohm on-state resistance are functionally equivalent for general switching applications where the exact resistance value is not critical. Selection depends on application requirements for signal attenuation and power dissipation.

Q: Are all substitute parts available in 14-TSSOP packaging? A: Most substitutes use 14-TSSOP packaging. SN74AHC4066DBR is available in 14-SSOP (0.209", 5.30mm width), which has different pin spacing and is not a direct PCB replacement. Verify package compatibility before selection.

Q: What supply voltage range should I consider when selecting a substitute? A: The original MAX4614CUD operates from 2V to 5.5V. Most active substitutes support this range or wider. 74HCT4066PW variants are limited to 4.5V to 5.5V, which may not be suitable for 2V to 4.4V applications. 74LV4066PW,118 and 74LVC4066PW,118 support lower voltages (1V and 1.65V respectively), providing greater flexibility.

Q: Is RoHS compliance important for my application? A: The original MAX4614CUD is RoHS non-compliant. All active substitute parts are ROHS3 compliant. If your application or supply chain requires RoHS compliance, select from active substitutes. Last Time Buy parts are also ROHS3 compliant but not recommended for new designs.

Q: Can I use SN74AHC4066 variants as substitutes? A: SN74AHC4066 parts (DBR, PW, PWR variants) are functionally compatible but designated Last Time Buy. These parts feature 75Ohm on-state resistance, 50MHz bandwidth, and 2V to 5.5V supply operation. They are available but not recommended for new production due to end-of-life status.

Q: What is the difference between cut tape, tube, and tape & reel packaging? A: These refer to supply formats, not electrical specifications. Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) are suitable for automated assembly. Tube packaging is used for manual handling. All formats contain identical parts; selection depends on manufacturing process requirements.

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