MAX154AENG Equivalent & Substitute Parts

Part Overview

The MAX154AENG is an 8-bit flash analog-to-digital converter manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications requiring 4-channel input multiplexing with integrated sample-and-hold and reference circuitry. The device operates at a 400 kHz sampling rate and is housed in a 24-DIP package for through-hole mounting.

This part is classified as obsolete. Identifying equivalent and substitute components is necessary to maintain design continuity, ensure supply chain availability, and support legacy system maintenance and reproduction.

Substiute Parts

MAX154AENG

Analog Devices Inc./Maxim IntegratedIn Stock: 992MAX154AENG Datasheet

Current PartRFQ

MAX154AENG+

Analog Devices Inc./Maxim IntegratedIn Stock: 1077MAX154AENG+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX154AENG is determined by strict equivalence across the following critical parameters:

• 8-bit resolution
• 400 kHz sampling rate
• 4 single-ended input channels
• Flash architecture with integrated multiplexer and sample-and-hold
• Internal reference
• 5V analog and digital supply requirements
• 24-DIP through-hole package
• Operating temperature range of -40°C to 85°C

The MAX154AENG+ qualifies as a direct substitute based on identical electrical specifications, package configuration, and functional architecture. The primary distinction between these parts is packaging format (tape and reel versus bulk) and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the MAX154AENG and MAX154AENG+ are classified as obsolete products. Selection between these parts should be based on the following criteria:

The MAX154AENG+ offers ROHS3 compliance, whereas the MAX154AENG is RoHS non-compliant. For applications subject to RoHS regulatory requirements or procurement policies mandating RoHS compliance, the MAX154AENG+ is the appropriate selection.

Both parts carry identical electrical and mechanical specifications, ensuring functional interchangeability within the same PCB design and assembly process. The 24-DIP through-hole package remains consistent across both variants, requiring no modifications to board layout or socket design.

Inventory availability should be evaluated based on current stock levels and supply chain lead times, as both parts are obsolete and subject to limited availability.

Frequently Asked Questions (FAQ)

Q: Can MAX154AENG+ be used as a direct replacement for MAX154AENG in existing designs?

A: Yes. The MAX154AENG+ is electrically and mechanically equivalent to the MAX154AENG. Both devices feature identical 8-bit resolution, 400 kHz sampling rate, 4-channel input configuration, and 24-DIP package dimensions. No circuit modifications or PCB redesign is required.

Q: What is the difference between MAX154AENG and MAX154AENG+?

A: The primary differences are packaging format and RoHS compliance status. The MAX154AENG is supplied in standard packaging and is RoHS non-compliant. The MAX154AENG+ is supplied in bulk packaging and is ROHS3 compliant. Electrical performance and functional specifications are identical.

Q: Are there any pin configuration differences between these parts?

A: No. Both the MAX154AENG and MAX154AENG+ use the same 24-DIP pin configuration. Pin assignments, signal definitions, and electrical characteristics are identical.

Q: What is the significance of the 24-DIP package for this device?

A: The 24-DIP (Dual In-line Package) with 0.300-inch (7.62mm) row spacing is a through-hole package type. This package is compatible with standard DIP sockets and breadboard layouts. Both substitute parts maintain this package specification, ensuring mechanical compatibility with existing PCB designs.

Q: Why is this device classified as obsolete?

A: The MAX154AENG is an older flash ADC architecture from Analog Devices. Modern data acquisition applications typically utilize higher-resolution converters with faster sampling rates and lower power consumption. Obsolete status indicates that the manufacturer has discontinued active production and support.

Q: Can this device be used in new designs?

A: While the MAX154AENG and MAX154AENG+ remain functionally operational, their obsolete status means limited availability and no ongoing manufacturer support. New designs should evaluate current-generation ADC alternatives that meet performance and compliance requirements.