MAX1270AEAI Equivalent & Substitute Parts

Part Overview

The MAX1270AEAI is a 12-bit Data Acquisition System (DAS) with 8 channels, 110k sampling rate, and serial interface in a 28-SSOP surface mount package. This part is classified as obsolete, which necessitates identification of equivalent substitute components for ongoing design support and procurement continuity. The MAX1270AEAI+ serves as the direct functional equivalent with improved compliance status and active product availability.

Substiute Parts

MAX1270AEAI

Analog Devices Inc./Maxim IntegratedIn Stock: 3352MAX1270AEAI Datasheet

Current PartRFQ

MAX1270AEAI+

Analog Devices Inc./Maxim IntegratedIn Stock: 2885MAX1270AEAI+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX1270AEAI is determined by strict equivalence across the following parameters:

• Channel Count: 8 channels (fixed requirement)
• Resolution: 12 bits (fixed requirement)
• Sampling Rate: 110k samples per second (fixed requirement)
• Package: 28-SSOP with identical physical dimensions (fixed requirement)
• Mounting Type: Surface mount (fixed requirement)
• Operating Temperature: -40°C to 85°C (fixed requirement)
• Voltage Supply Source: Single supply architecture (fixed requirement)

The MAX1270AEAI+ meets all these parameters identically. The primary distinction is product status and compliance certification, not functional or electrical performance.

Parameter Comparison

Engineering Selection Recommendations

The MAX1270AEAI+ is the direct substitute for the MAX1270AEAI. Selection of the MAX1270AEAI+ is based on:

• Product Status: The MAX1270AEAI+ maintains active product status, ensuring long-term availability and manufacturing support, whereas the MAX1270AEAI is obsolete.
• Compliance: The MAX1270AEAI+ is ROHS3 compliant, meeting current regulatory requirements for electronic components in most markets. The original MAX1270AEAI is RoHS non-compliant.
• Functional Equivalence: Both parts are identical in channel count, resolution, sampling rate, package, and operating temperature range.
• Interface Capability: The MAX1270AEAI+ supports expanded serial interface options (MICROWIRE™, QSPI™, SPI™) in addition to standard serial, providing design flexibility without compromising backward compatibility.

Frequently Asked Questions (FAQ)

Q: Can the MAX1270AEAI+ be used as a direct replacement for the MAX1270AEAI in existing designs?

A: Yes. Both parts share identical channel count (8), resolution (12 bits), sampling rate (110k), package (28-SSOP), and operating temperature range (-40°C to 85°C). Pin-to-pin compatibility and electrical performance are equivalent.

Q: What is the difference in data interface between the two parts?

A: The MAX1270AEAI specifies serial interface only. The MAX1270AEAI+ supports MICROWIRE™, QSPI™, Serial, and SPI™ interfaces. This expanded capability does not affect compatibility with designs using standard serial communication.

Q: Why is the MAX1270AEAI obsolete?

A: Product obsolescence is determined by manufacturer lifecycle decisions. The MAX1270AEAI+ is the active equivalent and recommended for all new designs and procurement.

Q: Are there packaging differences between the two parts?

A: The MAX1270AEAI+ is supplied in tube packaging. The original MAX1270AEAI packaging is not specified in available documentation. Both use the same 28-SSOP physical package.

Q: Does the RoHS compliance difference affect electrical performance?

A: No. RoHS compliance relates to material composition and environmental regulations, not electrical specifications. Both parts operate identically within the specified parameters.

Q: What is the supply voltage range for these parts?

A: The MAX1270AEAI+ specifies 4.75V to 5.25V for single supply operation. The original MAX1270AEAI does not specify a voltage range in available documentation, though it operates on single supply architecture.