MAX158ACWI+ Equivalent & Substitute Parts

Part Overview

The MAX158ACWI+ is an 8-bit flash analog-to-digital converter manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications requiring high-speed conversion. This device features 8 single-ended inputs, a 400 kSPS sampling rate, and internal voltage reference, operating from dual 5V supplies in a 28-SOIC surface mount package.

The MAX158ACWI+ is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support long-term product availability for applications currently utilizing this component.

Substiute Parts

MAX158ACWI+

Analog Devices Inc./Maxim IntegratedIn Stock: 3323MAX158ACWI+ Datasheet

Current PartRFQ

MAX158BCWI+

Analog Devices Inc./Maxim IntegratedIn Stock: 3181MAX158BCWI+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX158ACWI+ is determined by strict equivalence across the following critical parameters:

• Resolution: 8-bit conversion capability
• Sampling Performance: 400 kSPS conversion rate
• Input Configuration: 8 single-ended analog inputs
• Interface Standard: Parallel digital output
• Conversion Architecture: Flash topology
• Reference Implementation: Internal voltage reference
• Supply Voltage Requirements: 5V analog and digital supplies
• Thermal Operating Range: 0°C to 70°C
• Physical Form Factor: 28-SOIC package with 0.295" width (7.50mm)
• Surface Mount Compatibility: SOIC mounting specification

The MAX158BCWI+ meets all these criteria and qualifies as a parametric equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

The MAX158BCWI+ is the direct substitute for the MAX158ACWI+. Both devices share identical electrical specifications, package form factor, and pin configuration. The primary distinction is product lifecycle status: the MAX158ACWI+ is obsolete, while the MAX158BCWI+ maintains active production status.

Selection of the MAX158BCWI+ provides:

• Full parametric compatibility with existing MAX158ACWI+ designs
• Continued component availability through active manufacturing
• Compliance with ROHS3 and REACH regulatory requirements
• Identical thermal and electrical operating characteristics
• Direct pin-for-pin replacement capability in 28-SOIC surface mount applications

No design modifications, PCB layout changes, or firmware adjustments are required when transitioning from MAX158ACWI+ to MAX158BCWI+.

Frequently Asked Questions (FAQ)

Q: Can the MAX158BCWI+ directly replace the MAX158ACWI+ without PCB modifications?

A: Yes. Both devices are pin-for-pin compatible with identical electrical specifications, package dimensions, and pinout. No PCB layout changes are necessary.

Q: What is the primary reason for substitution?

A: The MAX158ACWI+ is classified as obsolete. The MAX158BCWI+ is the active production equivalent, ensuring long-term supply chain availability and design continuity.

Q: Are there differences in sampling performance between these parts?

A: No. Both devices operate at 400 kSPS with identical 8-bit resolution, 8 single-ended inputs, and flash architecture.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the MAX158ACWI+ and MAX158BCWI+ are ROHS3 compliant and REACH unaffected.

Q: Is the 28-SOIC package identical for both parts?

A: Yes. Both devices use the same 28-SOIC package with 0.295" width (7.50mm), ensuring mechanical and thermal compatibility.

Q: What supply voltages are required for the MAX158BCWI+?

A: The MAX158BCWI+ requires 5V for both analog and digital supplies, matching the MAX158ACWI+ requirements.

Q: Are there any temperature range differences?

A: No. Both devices operate across the identical 0°C to 70°C temperature range.