MAX1249BCEE Equivalent & Substitute Parts

Part Overview

The MAX1249BCEE is a 10-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 differential and single-ended input support, operating across a supply voltage range of 2.7V to 5.25V for both analog and digital domains.

The MAX1249BCEE is classified as obsolete, which necessitates identification of functionally equivalent alternatives for new designs or component replacement in existing systems. The primary substitute maintains identical electrical and mechanical specifications while offering improved product status and compliance certifications.

Substiute Parts

MAX1249BCEE

Analog Devices Inc./Maxim IntegratedIn Stock: 6335MAX1249BCEE Datasheet

Current PartRFQ

MAX1249BCEE+

Analog Devices Inc./Maxim IntegratedIn Stock: 1644MAX1249BCEE+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX1249BCEE is determined by strict equivalence across the following critical parameters:

• Resolution & Sampling Rate: 10-bit resolution at 133 kSPS
• Input Configuration: Support for 2 or 4 input channels with differential and single-ended modes
• Data Interface: SPI protocol compatibility
• Architecture: SAR-based conversion topology
• Supply Voltage Compatibility: 2.7V to 5.25V for both analog and digital supplies
• Package & Pinout: 16-SSOP surface mount package with identical mechanical dimensions
• Operating Temperature: 0°C to 70°C range

The MAX1249BCEE+ meets all these criteria and qualifies as a direct substitute. The primary distinction lies in product status and regulatory compliance, not functional or electrical performance.

Parameter Comparison

Engineering Selection Recommendations

The MAX1249BCEE+ is the direct substitute for the MAX1249BCEE. Selection of the MAX1249BCEE+ is justified on the following grounds:

Product Status: The MAX1249BCEE is classified as obsolete, limiting long-term availability and supply chain reliability. The MAX1249BCEE+ maintains active product status, ensuring continued manufacturing support and component availability.

Regulatory Compliance: The MAX1249BCEE+ achieves RoHS3 compliance, whereas the original MAX1249BCEE is RoHS non-compliant. This distinction is critical for applications subject to RoHS directives or customer requirements mandating compliant components.

Functional Equivalence: All electrical parameters, including resolution, sampling rate, input configuration, supply voltage ranges, and operating temperature specifications, are identical between the two parts. Pin-to-pin compatibility and package dimensions are preserved.

Certification Alignment: Both parts maintain identical REACH and ECCN classifications, ensuring no additional regulatory burden or export restrictions.

For new designs or component replacement scenarios, the MAX1249BCEE+ is the appropriate selection. Existing designs using the MAX1249BCEE may transition to the MAX1249BCEE+ without circuit modification, provided that RoHS compliance requirements are satisfied.

Frequently Asked Questions (FAQ)

Q: Are the MAX1249BCEE and MAX1249BCEE+ pin-compatible?

A: Yes. Both components use the 16-SSOP package with identical pinout and mechanical dimensions (0.154" width, 3.90mm). Direct PCB substitution is possible without layout modification.

Q: What is the primary reason to substitute the MAX1249BCEE?

A: The MAX1249BCEE is obsolete. The MAX1249BCEE+ provides identical functionality with active product status and RoHS3 compliance, ensuring supply chain continuity and regulatory alignment.

Q: Do the parts differ in electrical performance?

A: No. Both parts deliver 10-bit resolution at 133 kSPS with identical input configurations, supply voltage ranges (2.7V to 5.25V), and operating temperature specifications (0°C to 70°C).

Q: Is the MAX1249BCEE+ suitable for RoHS-compliant applications?

A: Yes. The MAX1249BCEE+ is RoHS3 compliant. The original MAX1249BCEE is RoHS non-compliant and should not be used in applications requiring RoHS certification.

Q: What packaging options are available for the MAX1249BCEE+?

A: The MAX1249BCEE+ is supplied in Tube packaging. Both parts are surface mount components in 16-SSOP configuration.

Q: Are there any differences in moisture sensitivity or handling requirements?

A: No. Both parts carry MSL 1 (Unlimited) classification, indicating no moisture sensitivity constraints during storage or handling.

Q: Can I use the MAX1249BCEE+ in existing designs without circuit changes?

A: Yes. The MAX1249BCEE+ is a direct functional and mechanical substitute. No circuit modifications are required for component replacement.