MAX311CWN Equivalent & Substitute Parts

Part Overview

The MAX311CWN is a video multiplexer IC manufactured by Analog Devices Inc./Maxim Integrated, designed for video switching applications requiring a 4:1 multiplexer configuration with 2 channels. This component operates across a wide supply voltage range (9V to 36V single supply, or ±4.5V to 18V dual supply) and features break-before-make switching characteristics in an 18-SOIC surface mount package.

The MAX311CWN is classified as obsolete. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this component.

Substiute Parts

MAX311CWN

Analog Devices Inc./Maxim IntegratedIn Stock: 771MAX311CWN Datasheet

Current PartRFQ

MAX311CWN+

Analog Devices Inc./Maxim IntegratedIn Stock: 914MAX311CWN+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX311CWN is determined by strict equivalence across the following critical parameters:

• Multiplexer configuration (4:1)
• Channel count (2 channels)
• On-state resistance specification (250 Ohm maximum)
• Supply voltage ranges (9V–36V single; ±4.5V–18V dual)
• Break-before-make switching behavior
• Operating temperature range (0°C–70°C)
• Package type and physical dimensions (18-SOIC)
• Surface mount mounting type

The MAX311CWN+ meets all substitution criteria and is classified as an active product with improved compliance status.

Parameter Comparison

Engineering Selection Recommendations

The MAX311CWN+ is the direct functional equivalent of the MAX311CWN. Both parts share identical electrical specifications, pin configurations, and package dimensions. The primary distinction is product lifecycle status: the MAX311CWN is obsolete, while the MAX311CWN+ is actively manufactured.

For new designs or component replenishment, the MAX311CWN+ is the appropriate selection. This part maintains full electrical and mechanical compatibility while offering improved compliance status (ROHS3 Compliant versus RoHS non-compliant) and active product support from the manufacturer.

Frequently Asked Questions (FAQ)

Q: Can MAX311CWN+ be used as a direct replacement for MAX311CWN in existing designs?

A: Yes. The MAX311CWN+ is electrically and mechanically identical to the MAX311CWN. Pin configuration, package dimensions (18-SOIC), and all electrical parameters are equivalent. No circuit modifications are required.

Q: What is the difference between MAX311CWN and MAX311CWN+?

A: The primary differences are product status and compliance certification. The MAX311CWN is obsolete; the MAX311CWN+ is an active product. The MAX311CWN+ is ROHS3 compliant, whereas the MAX311CWN is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there any package or mounting differences?

A: Both parts use the same 18-SOIC surface mount package with identical physical dimensions (0.295", 7.50mm width). The MAX311CWN+ is supplied in tube packaging, while the MAX311CWN packaging type is not specified.

Q: What supply voltage configurations does this part support?

A: The MAX311CWN and MAX311CWN+ support both single and dual supply configurations. Single supply range: 9V to 36V. Dual supply range: ±4.5V to ±18V.

Q: What is the on-state resistance specification?

A: The maximum on-state resistance for both parts is 250 Ohm.

Q: Does this part feature break-before-make switching?

A: Yes. Both the MAX311CWN and MAX311CWN+ incorporate break-before-make switching characteristics, ensuring no signal overlap during channel transitions.