MAX174CEWI Equivalent & Substitute Parts

Part Overview

The MAX174CEWI is a 12-bit Analog-to-Digital Converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated, designed for single-ended input data acquisition applications. This component features a Successive Approximation Register (SAR) architecture with a 125 kHz sampling rate and operates across a wide supply voltage range of 5V, -12V, and -15V for both analog and digital domains. The device is packaged in a 28-SOIC surface-mount configuration with an operating temperature range of -40°C to 85°C.

The MAX174CEWI is classified as obsolete, which necessitates identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain identical electrical specifications and mechanical compatibility to ensure direct replacement capability without circuit redesign.

Substiute Parts

MAX174CEWI

Analog Devices Inc./Maxim IntegratedIn Stock: 742MAX174CEWI Datasheet

Current PartRFQ

MAX174AEWI+

Analog Devices Inc./Maxim IntegratedIn Stock: 1036MAX174AEWI+ Datasheet

Parametric EquivalentRFQ

MAX174AEWI+W

Analog Devices Inc./Maxim IntegratedIn Stock: 708MAX174AEWI+W Datasheet

Parametric EquivalentRFQ

MAX174BEWI+

Analog Devices Inc./Maxim IntegratedIn Stock: 3291MAX174BEWI+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX174CEWI are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution criteria are:

• 12-bit resolution maintained
• 125 kHz sampling rate maintained
• Single-ended input configuration maintained
• Parallel data interface maintained
• SAR architecture maintained
• Internal reference type maintained
• Identical supply voltage requirements (5V, -12V, -15V for both analog and digital)
• 28-SOIC package with identical physical dimensions
• Surface-mount configuration maintained
• Operating temperature range of -40°C to 85°C maintained

The MAX174AEWI+, MAX174AEWI+W, and MAX174BEWI+ meet all parametric requirements for direct substitution. These parts are manufactured by the same supplier (Analog Devices Inc./Maxim Integrated) and share the same base product number (MAX174), ensuring design compatibility and functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts (MAX174AEWI+, MAX174AEWI+W, and MAX174BEWI+) are parametrically equivalent to the MAX174CEWI and provide direct replacement capability. The selection among these alternatives should be based on the following factors:

Product Status: The MAX174CEWI is obsolete. All substitute parts are active products with ongoing manufacturing support and availability, making them suitable for new designs and production continuity.

Compliance Status: The MAX174CEWI is RoHS non-compliant. All substitute parts achieve ROHS3 compliance, meeting current environmental and regulatory requirements for commercial and industrial applications.

Packaging Availability: MAX174AEWI+ and MAX174BEWI+ are supplied in tube packaging, while MAX174AEWI+W does not specify packaging format. Tube packaging is standard for automated assembly processes.

Inventory Considerations: MAX174BEWI+ offers the highest inventory availability (3200 pcs), followed by MAX174AEWI+ (981 pcs) and MAX174AEWI+W (680 pcs), providing flexibility for volume requirements.

Frequently Asked Questions (FAQ)

Q: Can MAX174AEWI+, MAX174AEWI+W, and MAX174BEWI+ be used interchangeably with MAX174CEWI?

A: Yes. All three substitute parts maintain identical electrical specifications (12-bit resolution, 125 kHz sampling rate, single-ended input, parallel interface, SAR architecture, internal reference, and identical supply voltage requirements) and mechanical compatibility (28-SOIC package, surface-mount configuration, identical pin assignments). Direct substitution is possible without circuit modification.

Q: What is the primary reason for substituting the MAX174CEWI?

A: The MAX174CEWI is classified as obsolete, meaning it is no longer manufactured or supported by Analog Devices Inc./Maxim Integrated. The substitute parts are active products with ongoing availability and manufacturing support, ensuring long-term supply chain reliability.

Q: Are there compliance differences between the main part and substitutes?

A: Yes. The MAX174CEWI is RoHS non-compliant, while all substitute parts (MAX174AEWI+, MAX174AEWI+W, and MAX174BEWI+) are ROHS3 compliant. This compliance improvement makes the substitutes suitable for applications requiring environmental and regulatory adherence.

Q: Do the substitute parts have identical pin configurations?

A: Yes. All substitute parts use the 28-SOIC package with identical physical dimensions (0.295", 7.50mm width) and maintain the same base product number (MAX174), ensuring pin-for-pin compatibility and direct PCB placement without modification.

Q: Is there a performance difference between MAX174AEWI+ and MAX174BEWI+?

A: No. Both parts maintain identical electrical performance specifications. The designation difference reflects manufacturing variants within the MAX174 product family, but all parametric characteristics remain equivalent for the specified operating conditions.

Q: What packaging formats are available for the substitute parts?

A: MAX174AEWI+ and MAX174BEWI+ are supplied in tube packaging, which is standard for automated assembly and high-volume production. MAX174AEWI+W does not specify a packaging format in the provided data.