MAX327CSE Equivalent & Substitute Parts

Part Overview

The MAX327CSE is a 4-circuit SPST-NO IC switch manufactured by Analog Devices Inc./Maxim Integrated, housed in a 16-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. The MAX327CSE operates with single supply voltages from 10V to 30V or dual supplies from ±5V to ±18V, with a maximum on-state resistance of 4.6kOhm and switching times of 1µs (Ton) and 500ns (Toff).

Key Parameters

Parameter	Value
Manufacturer Part Number	MAX327CSE
Manufacturer	Analog Devices Inc./Maxim Integrated
Category	Interface
Switch Circuit	SPST - NO
Number of Circuits	4
On-State Resistance (Max)	4.6kOhm
Voltage - Supply, Single (V+)	10V ~ 30V
Voltage - Supply, Dual (V±)	±5V ~ 18V
Switch Time (Ton, Toff) (Max)	1µs, 500ns
Operating Temperature	0°C ~ 70°C
Package / Case	16-SOIC (0.154", 3.90mm Width)
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the MAX327CSE is determined by the following critical parameters:

Package compatibility: All substitutes must use 16-SOIC surface mount packaging with identical 0.154" (3.90mm) width
Circuit configuration: SPST-NO topology with 4 circuits (1:1 multiplexer/demultiplexer)
Supply voltage range: Compatibility with either single supply (10V ~ 30V) or dual supply (±5V ~ ±18V) operation
On-state resistance: Maximum 4.6kOhm acceptable for direct replacement; lower resistance values provide improved performance
Switching performance: Maximum switching times of 1µs (Ton) and 500ns (Toff)
Leakage current: Maximum 10pA specification
Operating temperature: Minimum range of 0°C ~ 70°C

Substitute parts are grouped by on-state resistance performance tier, as this parameter directly affects signal integrity and power dissipation in switching applications.

Parameter Comparison

Parameter	MAX327CSE	MAX327CSE+	ADG1312YRZ-REEL7	ADG442BRZ	ADG442BRZ-REEL	ALD4202MSCL	DG455EY-T1-E3
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Advanced Linear Devices Inc.	Vishay Siliconix
Switch Circuit	SPST - NO	SPST - NO	SPST - NO	SPST - NO	SPST - NO	SPST - NO	SPST - NO
Number of Circuits	4	4	4	4	4	4	4
On-State Resistance (Max)	4.6kOhm	4.6kOhm	200Ohm	70Ohm	70Ohm	135Ohm	5.3Ohm
Voltage - Supply, Single (V+)	10V ~ 30V	10V ~ 30V	12V	12V	12V	3V ~ 12V	12V ~ 36V
Voltage - Supply, Dual (V±)	±5V ~ 18V	±5V ~ 18V	±15V	±15V	±15V	±1.5V ~ 6V	±5V ~ 15V
Switch Time (Ton, Toff) (Max)	1µs, 500ns	1µs, 500ns	125ns, 50ns	110ns, 60ns	110ns, 60ns	240ns, 130ns	118ns, 97ns
Charge Injection	2pC	2pC	2pC	1pC	1pC	1pC	22pC
Channel Capacitance (CS(off), CD(off))	1.7pF, 1.7pF	1.7pF, 1.7pF	5pF, 5pF	4pF, 4pF	4pF, 4pF	3pF, 3pF	31pF, 34pF
Current - Leakage (IS(off)) (Max)	10pA	10pA	10nA	500pA	500pA	100pA	500pA
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 105°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 125°C
Package / Case	16-SOIC (0.154", 3.90mm Width)	16-SOIC (0.154", 3.90mm Width)	16-SOIC (0.154", 3.90mm Width)	16-SOIC (0.154", 3.90mm Width)	16-SOIC (0.154", 3.90mm Width)	16-SOIC (0.154", 3.90mm Width)	16-SOIC (0.154", 3.90mm Width)
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Replacement (Pin-Compatible, Same Performance Tier)

MAX327CSE+ is the direct successor to the MAX327CSE. Both parts share identical electrical specifications (4.6kOhm on-state resistance, 1µs/500ns switching times, 10pA leakage current) and package configuration. The primary distinction is product status: MAX327CSE+ is active and ROHS3 compliant, whereas the original MAX327CSE is obsolete and RoHS non-compliant. For new designs or production continuation, MAX327CSE+ is the recommended equivalent.

Performance-Enhanced Substitutes (Lower On-State Resistance)

ADG442BRZ and ADG442BRZ-REEL offer significantly improved on-state resistance (70Ohm versus 4.6kOhm), resulting in reduced power dissipation and improved signal integrity. Both are ROHS3 compliant and active products. Supply voltage operation is restricted to 12V single supply or ±15V dual supply, which may require circuit redesign if the original application requires the full 10V ~ 30V single supply range. Switching performance is superior (110ns/60ns versus 1µs/500ns).

ADG1312YRZ-REEL7 provides intermediate performance with 200Ohm on-state resistance and the fastest switching times (125ns/50ns). This part operates at 12V single supply or ±15V dual supply and extends the operating temperature range to -40°C ~ 105°C. ROHS3 compliant and active status.

ALD4202MSCL offers 135Ohm on-state resistance with the lowest supply voltage requirement (3V ~ 12V single supply or ±1.5V ~ 6V dual supply). This part is suitable for low-voltage applications and maintains the original 0°C ~ 70°C operating temperature range. ROHS3 compliant and active status.

DG455EY-T1-E3 (Vishay Siliconix) provides the lowest on-state resistance (5.3Ohm) and the widest single supply voltage range (12V ~ 36V). This part is ROHS3 compliant and active, with extended operating temperature range (-40°C ~ 125°C). Higher charge injection (22pC) and channel capacitance values may affect high-frequency performance compared to other substitutes.

Compliance Considerations

All substitute parts listed are ROHS3 compliant and carry active product status, addressing the obsolescence and compliance limitations of the original MAX327CSE. Selection should prioritize supply voltage compatibility with the target application circuit.

Frequently Asked Questions (FAQ)

Q: Can MAX327CSE+ be used as a direct replacement for MAX327CSE?

A: Yes. MAX327CSE+ is electrically and mechanically identical to MAX327CSE, with the same 4.6kOhm on-state resistance, switching times, and 16-SOIC package. The primary differences are product status (active versus obsolete) and RoHS compliance (ROHS3 versus non-compliant). MAX327CSE+ is the recommended direct equivalent.

Q: What is the key difference between MAX327CSE and the ADG442 series?

A: On-state resistance is the primary difference. MAX327CSE specifies 4.6kOhm maximum, while ADG442BRZ and ADG442BRZ-REEL specify 70Ohm maximum. Lower on-state resistance reduces power dissipation and improves signal fidelity. However, ADG442 parts require 12V single supply or ±15V dual supply operation, whereas MAX327CSE supports 10V ~ 30V single supply or ±5V ~ 18V dual supply. Circuit redesign may be necessary if the original application requires the full voltage range.

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

A: Yes. All substitute parts listed use 16-SOIC surface mount packaging with 0.154" (3.90mm) width, matching the original MAX327CSE package specification. Pin-to-pin compatibility is maintained across all listed substitutes.

Q: Which substitute part offers the best performance for low-voltage applications?

A: ALD4202MSCL is optimized for low-voltage operation, supporting 3V ~ 12V single supply or ±1.5V ~ 6V dual supply. This part maintains the original 0°C ~ 70°C operating temperature range and provides 135Ohm on-state resistance with ROHS3 compliance.

Q: What is the impact of on-state resistance on circuit performance?

A: On-state resistance directly affects signal attenuation and power dissipation in switching applications. Lower on-state resistance (measured in Ohms) reduces voltage drop across the switch and minimizes power loss. MAX327CSE specifies 4.6kOhm, while performance-enhanced substitutes range from 5.3Ohm (DG455EY-T1-E3) to 200Ohm (ADG1312YRZ-REEL7). Selection depends on application requirements for signal integrity and thermal management.

Q: Can DG455EY-T1-E3 replace MAX327CSE in all applications?

A: DG455EY-T1-E3 offers superior on-state resistance (5.3Ohm) and extended operating temperature range (-40°C ~ 125°C), but introduces higher charge injection (22pC versus 2pC) and significantly higher channel capacitance (31pF/34pF versus 1.7pF/1.7pF). These characteristics may affect performance in high-frequency or precision analog switching applications. Electrical simulation or prototype testing is necessary to confirm suitability for specific circuit requirements.

Q: What does ROHS3 compliance mean for component selection?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. All substitute parts listed are ROHS3 compliant, whereas the original MAX327CSE is RoHS non-compliant. For applications subject to environmental or regulatory requirements, ROHS3 compliant substitutes are mandatory.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message