MAX397EPI+ Equivalent & Substitute Parts

Part Overview

The MAX397EPI+ is a dual 8:1 analog multiplexer/demultiplexer integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. This interface component features two independent 8:1 switch circuits with 100Ohm on-state resistance, designed for signal routing and switching applications in analog systems. The device is currently in active production status with 1111 pieces available in new original stock. Alternative components are identified based on matching electrical characteristics and mechanical compatibility to ensure seamless integration in existing designs.

Key Parameters

Parameter	Value
Multiplexer/Demultiplexer Circuit Configuration	8:1
Number of Circuits	2
On-State Resistance (Max)	100Ohm
Channel-to-Channel Matching (ΔRon)	1.8Ohm
Voltage - Supply, Single (V+)	2.7V ~ 16V
Voltage - Supply, Dual (V±)	±2.7V ~ 8V
Switch Time (Ton, Toff) (Max)	150ns, 150ns
Charge Injection	2pC
Channel Capacitance (CS(off), CD(off))	11pF, 80pF
Current - Leakage (IS(off)) (Max)	100pA
Crosstalk	-92dB @ 100kHz
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	28-DIP (0.600", 15.24mm)
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MAX397EPI+ is determined by strict equivalence across the following critical parameters:

Electrical Characteristics:

Multiplexer configuration: 8:1 dual circuit topology
On-state resistance: 100Ohm maximum
Channel-to-Channel matching: 1.8Ohm maximum
Supply voltage ranges: Single supply 2.7V ~ 16V or dual supply ±2.7V ~ 8V
Switch timing: 150ns maximum for both Ton and Toff
Charge injection: 2pC
Channel capacitance specifications: CS(off) 11pF, CD(off) 80pF
Leakage current: 100pA maximum
Crosstalk performance: -92dB @ 100kHz

Mechanical & Packaging Requirements:

Package type: 28-DIP (0.600", 15.24mm)
Mounting: Through Hole
Supplier device package: 28-PDIP

Compliance & Status:

Product status: Active
RoHS3 compliance required
MSL rating: 1 (Unlimited)

Only components matching all specified parameters across these categories qualify as direct substitutes.

Parameter Comparison

Parameter	MAX397EPI+ (Main)	MAX397EPI+ (Substitute)
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Multiplexer/Demultiplexer Circuit	8:1	8:1
Number of Circuits	2	2
On-State Resistance (Max)	100Ohm	100Ohm
Channel-to-Channel Matching (ΔRon)	1.8Ohm	1.8Ohm
Voltage - Supply, Single (V+)	2.7V ~ 16V	2.7V ~ 16V
Voltage - Supply, Dual (V±)	±2.7V ~ 8V	±2.7V ~ 8V
Switch Time (Ton, Toff) (Max)	150ns, 150ns	150ns, 150ns
Charge Injection	2pC	2pC
Channel Capacitance (CS(off), CD(off))	11pF, 80pF	11pF, 80pF
Current - Leakage (IS(off)) (Max)	100pA	100pA
Crosstalk	-92dB @ 100kHz	-92dB @ 100kHz
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	28-DIP (0.600", 15.24mm)	28-DIP (0.600", 15.24mm)
Mounting Type	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active

Engineering Selection Recommendations

The MAX397EPI+ is an active product with full ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), making it suitable for standard industrial and commercial applications without environmental restrictions. The substitute part maintains identical electrical performance, mechanical packaging, and regulatory compliance status. Selection between the main part and substitute should be based on inventory availability and lead time requirements, as both components are functionally equivalent for all specified applications. The active product status ensures continued manufacturing support and supply chain stability.

Frequently Asked Questions (FAQ)

Q: What defines a valid substitute for the MAX397EPI+? A: A valid substitute must match all electrical parameters including 8:1 dual multiplexer configuration, 100Ohm on-state resistance, 1.8Ohm channel matching, specified supply voltage ranges, 150ns switch timing, and all capacitance and leakage specifications. The package must be 28-DIP through-hole, and compliance certifications (ROHS3, MSL 1) must be identical.

Q: Can the MAX397EPI+ be used in applications requiring different supply voltages? A: The MAX397EPI+ supports both single supply (2.7V ~ 16V) and dual supply (±2.7V ~ 8V) configurations. Application design must operate within these specified ranges.

Q: Is the 28-DIP package compatible with surface-mount PCB designs? A: No. The MAX397EPI+ is a through-hole component with 28-DIP package. Surface-mount applications require alternative package types not covered by this substitution analysis.

Q: What is the significance of the 1.8Ohm channel-to-channel matching specification? A: Channel-to-Channel matching (ΔRon) of 1.8Ohm maximum ensures consistent on-state resistance across all eight channels within each multiplexer circuit, critical for applications requiring uniform signal attenuation and impedance characteristics.

Q: Are there any temperature derating considerations for the MAX397EPI+? A: The MAX397EPI+ operates across -40°C ~ 85°C ambient temperature range. Applications must ensure operating conditions remain within this specification; external thermal management may be required for high-power switching scenarios.

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