MAX328EWE Equivalent & Substitute Parts

Part Overview

The MAX328EWE is an 8:1 analog multiplexer IC manufactured by Analog Devices Inc./Maxim Integrated, designed for signal routing and switching applications. This device integrates a single 8:1 multiplexer circuit with 4.6kOhm on-state resistance in a 16-SOIC surface mount package. The MAX328EWE is classified as obsolete, which necessitates identification of functionally equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

MAX328EWE
Analog Devices Inc./Maxim IntegratedIn Stock: 2426MAX328EWE Datasheet
MAX328EWE
Current Part
MAX328EWE+
Analog Devices Inc./Maxim IntegratedIn Stock: 4284MAX328EWE+ Datasheet
MAX328EWE+
Direct

Key Parameters

Parameter Value
Multiplexer Configuration 8:1
Number of Circuits 1
On-State Resistance (Max) 4.6kOhm
Channel-to-Channel Matching (ΔRon) 70Ohm
Voltage Supply - Single (V+) 10V ~ 30V
Voltage Supply - Dual (V±) ±5V ~ 18V
Switch Time (Ton, Toff) Max 1.5µs, 1µs
Charge Injection 2pC
Channel Capacitance (CS(off), CD(off)) 1.8pF, 8pF
Current - Leakage (IS(off)) Max 10pA
Operating Temperature -40°C ~ 85°C (TA)
Package / Case 16-SOIC (0.295", 7.50mm Width)
Mounting Type Surface Mount

Substitute Part Grouping Explanation

Substitution of the MAX328EWE is determined by strict equivalence across the following electrical and mechanical parameters:

  • Multiplexer Configuration: Must be 8:1 topology
  • Number of Circuits: Must be 1 circuit
  • On-State Resistance: Must not exceed 4.6kOhm maximum
  • Channel-to-Channel Matching: Must be 70Ohm or better
  • Supply Voltage Ranges: Must support both single supply (10V ~ 30V) and dual supply (±5V ~ 18V) operation
  • Switch Timing: Must meet or exceed 1.5µs (Ton) and 1µs (Toff) specifications
  • Charge Injection: Must not exceed 2pC
  • Channel Capacitance: Must not exceed 1.8pF (CS(off)) and 8pF (CD(off))
  • Leakage Current: Must not exceed 10pA at maximum
  • Operating Temperature Range: Must support -40°C ~ 85°C
  • Package: Must be 16-SOIC form factor with identical pinout

The MAX328EWE+ qualifies as a direct substitute based on identical electrical specifications and package configuration.

Parameter Comparison

Parameter MAX328EWE (Main Part) MAX328EWE+ (Substitute)
Manufacturer Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated
Multiplexer Configuration 8:1 8:1
Number of Circuits 1 1
On-State Resistance (Max) 4.6kOhm 4.6kOhm
Channel-to-Channel Matching (ΔRon) 70Ohm 70Ohm
Voltage - Supply, Single (V+) 10V ~ 30V 10V ~ 30V
Voltage - Supply, Dual (V±) ±5V ~ 18V ±5V ~ 18V
Switch Time (Ton, Toff) Max 1.5µs, 1µs 1.5µs, 1µs
Charge Injection 2pC 2pC
Channel Capacitance (CS(off), CD(off)) 1.8pF, 8pF 1.8pF, 8pF
Current - Leakage (IS(off)) Max 10pA 10pA
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Package / Case 16-SOIC (0.295", 7.50mm Width) 16-SOIC (0.295", 7.50mm Width)
Mounting Type Surface Mount Surface Mount
Product Status Obsolete Active
RoHS Status RoHS non-compliant ROHS3 Compliant
Packaging Not specified Tube

Engineering Selection Recommendations

The MAX328EWE+ is the direct functional equivalent of the MAX328EWE. Both parts share identical electrical specifications and package configuration, ensuring pin-for-pin compatibility and circuit-level interchangeability.

The primary distinction between these parts is product lifecycle status and regulatory compliance. The MAX328EWE is classified as obsolete, while the MAX328EWE+ maintains active product status. The MAX328EWE+ additionally meets ROHS3 compliance requirements, whereas the original MAX328EWE is RoHS non-compliant. For new designs and production applications requiring regulatory compliance, the MAX328EWE+ is the appropriate selection.

Both parts are supplied by Analog Devices Inc./Maxim Integrated and maintain identical electrical performance across all specified parameters, including on-state resistance, switching speed, charge injection, and leakage current characteristics.

Frequently Asked Questions (FAQ)

Q: Can the MAX328EWE+ be used as a direct replacement for the MAX328EWE?

A: Yes. The MAX328EWE+ is electrically and mechanically identical to the MAX328EWE. Both devices feature the same 8:1 multiplexer configuration, 4.6kOhm on-state resistance, supply voltage ranges, switching characteristics, and 16-SOIC package. Pin-for-pin substitution is supported without circuit modification.

Q: What is the difference between MAX328EWE and MAX328EWE+?

A: The primary differences are product status and compliance certification. The MAX328EWE is obsolete and RoHS non-compliant. The MAX328EWE+ is an active product that meets ROHS3 compliance standards. Electrical specifications and package configuration are identical.

Q: Are there packaging differences between these parts?

A: The MAX328EWE+ is supplied in tube packaging, while the original MAX328EWE packaging specification is not detailed. Both parts use the 16-SOIC surface mount package form factor with identical dimensions (0.295", 7.50mm width).

Q: What supply voltage configurations does the MAX328EWE+ support?

A: The MAX328EWE+ supports both single supply operation (10V ~ 30V) and dual supply operation (±5V ~ 18V), providing flexibility for various circuit topologies and power distribution architectures.

Q: What is the on-state resistance specification?

A: The on-state resistance maximum is 4.6kOhm with channel-to-channel matching of 70Ohm. This specification applies to both the MAX328EWE and MAX328EWE+.

Q: What is the operating temperature range?

A: Both the MAX328EWE and MAX328EWE+ operate across -40°C to 85°C ambient temperature range, suitable for industrial and commercial applications.

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