MAX317EPA+ Equivalent & Substitute Parts

Part Overview

The MAX317EPA+ is a single-circuit SPST-NC (Normally Closed) analog switch manufactured by Analog Devices Inc./Maxim Integrated. This component features a 1:1 multiplexer/demultiplexer configuration with 35Ohm on-state resistance and operates across a wide supply voltage range. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Switch Circuit Type	SPST - NC
Number of Circuits	1
Multiplexer/Demultiplexer Configuration	1:1
On-State Resistance (Max)	35Ohm
Channel-to-Channel Matching (ΔRon)	2Ohm (Max)
Voltage - Supply, Single (V+)	10V ~ 30V
Voltage - Supply, Dual (V±)	±4.5V ~ 20V
Switch Time (Ton, Toff) (Max)	175ns, 145ns
Charge Injection	3pC
Channel Capacitance (CS(off), CD(off))	8pF, 8pF
Current - Leakage (IS(off)) (Max)	250pA
Crosstalk	-85dB @ 1MHz
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MAX317EPA+ is determined by strict equivalence across the following critical parameters:

Switch circuit topology: SPST - NC configuration
Circuit count and multiplexer ratio: 1 circuit, 1:1 configuration
On-state resistance specification: 35Ohm maximum
Package and mounting: 8-DIP through-hole form factor
Operating temperature range: -40°C ~ 85°C
Supply voltage compatibility: Single supply 10V ~ 30V or dual supply ±4.5V ~ 20V
Regulatory compliance: ROHS3 Compliant, REACH Unaffected

The identified substitutes ADG417BNZ and DG417DJ-E3 maintain functional equivalence across these core parameters. Variations in secondary characteristics such as charge injection, channel capacitance, and switch timing do not preclude substitution when the primary electrical and mechanical specifications align.

Parameter Comparison

Parameter	MAX317EPA+	ADG417BNZ	DG417DJ-E3
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc.	Vishay Siliconix
Product Status	Obsolete	Active	Active
Switch Circuit	SPST - NC	SPST - NC	SPST - NC
Number of Circuits	1	1	1
Multiplexer/Demultiplexer Circuit	1:1	1:1	1:1
On-State Resistance (Max)	35Ohm	35Ohm	35Ohm
Voltage - Supply, Single (V+)	10V ~ 30V	12V	12V
Voltage - Supply, Dual (V±)	±4.5V ~ 20V	±15V	±15V
Switch Time (Ton, Toff) (Max)	175ns, 145ns	160ns, 100ns	175ns, 145ns
Charge Injection	3pC	7pC	60pC
Channel Capacitance (CS(off), CD(off))	8pF, 8pF	6pF, 6pF	8pF, 8pF
Current - Leakage (IS(off)) (Max)	250pA	250pA	250pA
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Both ADG417BNZ and DG417DJ-E3 are active products with current manufacturing status, providing supply continuity advantages over the obsolete MAX317EPA+. Both substitutes maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage protocols.

ADG417BNZ, manufactured by Analog Devices Inc., offers improved switch timing performance (160ns/100ns versus 175ns/145ns) and lower charge injection (7pC versus 3pC), with reduced channel capacitance (6pF versus 8pF).

DG417DJ-E3, manufactured by Vishay Siliconix, matches the original switch timing specification (175ns/145ns) and channel capacitance (8pF), but exhibits higher charge injection (60pC). This part maintains electrical characteristics closer to the MAX317EPA+ baseline.

Selection between substitutes depends on application sensitivity to charge injection and channel capacitance characteristics. Both parts satisfy the core functional and compliance requirements for direct substitution in 8-DIP through-hole applications.

Frequently Asked Questions (FAQ)

Q: Can ADG417BNZ and DG417DJ-E3 be used interchangeably with MAX317EPA+?

A: Both parts satisfy the core substitution criteria: SPST-NC topology, 1:1 configuration, 35Ohm on-state resistance, 8-DIP through-hole package, and -40°C ~ 85°C operating range. Pin-to-pin compatibility and functional equivalence are established. Application-specific performance requirements regarding charge injection and capacitance should be evaluated.

Q: What are the supply voltage differences between the original and substitute parts?

A: The MAX317EPA+ supports single supply 10V ~ 30V or dual supply ±4.5V ~ 20V. Both ADG417BNZ and DG417DJ-E3 specify single supply 12V or dual supply ±15V. Designs operating at the extremes of the original specification (below 12V single supply or below ±15V dual supply) require circuit verification.

Q: Are all three parts RoHS and REACH compliant?

A: All three parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic component procurement and assembly.

Q: What is the significance of the charge injection difference between parts?

A: Charge injection values (MAX317EPA+ 3pC, ADG417BNZ 7pC, DG417DJ-E3 60pC) represent transient charge transferred during switching. Applications with high-impedance signal paths or precision analog circuits may be sensitive to these differences. DG417DJ-E3 exhibits significantly higher charge injection and should be evaluated in sensitive applications.

Q: Does package form factor differ between the three parts?

A: All three parts use identical 8-DIP (0.300", 7.62mm) through-hole packaging. PCB layout and socket compatibility are maintained across all substitutes.

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