MAX1246AEEE Equivalent & Substitute Parts

Part Overview

The MAX1246AEEE is a 12-bit Analog to Digital Converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications requiring SAR (Successive Approximation Register) architecture. This component features 2 or 4 configurable input channels with both differential and single-ended input support, operating across a 2.7V to 3.6V supply voltage range with a sampling rate of 133 kSPS.

The MAX1246AEEE is classified as obsolete, which necessitates identification of functionally equivalent alternatives for new designs or component replenishment. Active substitute parts maintain identical electrical and mechanical specifications while offering improved availability and compliance status.

Substiute Parts

MAX1246AEEE

Analog Devices Inc./Maxim IntegratedIn Stock: 879MAX1246AEEE Datasheet

Current PartRFQ

MAX1246AEEE+

Analog Devices Inc./Maxim IntegratedIn Stock: 991MAX1246AEEE+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX1246AEEE is determined by strict equivalence across the following critical parameters:

• 12-bit resolution
• 133 kSPS sampling rate
• 2 or 4 configurable input channels
• Differential and single-ended input capability
• SPI serial data interface
• SAR architecture with internal and external reference support
• 2.7V to 3.6V dual supply voltage range
• 16-SSOP surface mount package
• Operating temperature range of -40°C to 85°C

Parts meeting all these specifications are classified as direct equivalents and may be substituted without circuit redesign or PCB modification.

Parameter Comparison

Engineering Selection Recommendations

The MAX1246AEEE+ is the direct functional equivalent of the MAX1246AEEE and serves as the primary substitute for obsolete stock replacement and new design implementations.

Selection rationale:

• Electrical specifications are identical across all functional parameters
• MAX1246AEEE+ maintains active product status, ensuring long-term availability and supply chain continuity
• RoHS3 compliance of the MAX1246AEEE+ satisfies modern regulatory requirements, whereas the original MAX1246AEEE is RoHS non-compliant
• Both parts share identical package geometry and pinout, enabling direct PCB substitution without layout modification
• Tube packaging of the MAX1246AEEE+ provides standard handling and storage compatibility with automated assembly processes

Frequently Asked Questions (FAQ)

Q: Can MAX1246AEEE+ be used as a direct replacement for MAX1246AEEE?

A: Yes. The MAX1246AEEE+ is electrically and mechanically identical to the MAX1246AEEE across all functional parameters. No circuit redesign or PCB modification is required for substitution.

Q: What is the primary difference between MAX1246AEEE and MAX1246AEEE+?

A: The MAX1246AEEE+ is the active production variant with RoHS3 compliance and tube packaging. The original MAX1246AEEE is obsolete and RoHS non-compliant. Both parts are functionally equivalent.

Q: Are there any pinout or package differences?

A: No. Both parts use the 16-SSOP package with identical pinout and mechanical dimensions (0.154" width, 3.90mm). Surface mount assembly compatibility is maintained.

Q: What supply voltages are supported?

A: Both parts operate with analog and digital supply voltages ranging from 2.7V to 3.6V. Separate supply pins allow independent voltage regulation for analog and digital domains.

Q: How many input channels are available?

A: Both parts support 2 or 4 configurable input channels. Channel configuration is determined by application-specific firmware or hardware strapping during system initialization.

Q: What data interface protocol is used?

A: Both parts communicate via SPI (Serial Peripheral Interface), enabling integration with standard microcontroller SPI ports without additional interface logic.

Q: Is the operating temperature range suitable for industrial applications?

A: Yes. Both parts operate across -40°C to 85°C, meeting industrial temperature specifications for most embedded and data acquisition systems.