MAX1241ACSA Equivalent & Substitute Parts

Part Overview

The MAX1241ACSA is a 12-bit Analog-to-Digital Converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated, designed for single-ended input data acquisition applications. This device features a Successive Approximation Register (SAR) architecture with a 73 kSPS sampling rate and operates across a 2.7V to 5.25V supply voltage range for both analog and digital domains. The part is currently classified as obsolete, making equivalent substitutes necessary for ongoing design support and procurement continuity.

Substiute Parts

MAX1241ACSA

Analog Devices Inc./Maxim IntegratedIn Stock: 2450MAX1241ACSA Datasheet

Current PartRFQ

MAX1241ACSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 794MAX1241ACSA+ Datasheet

DirectRFQ

MAX1241BCSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2321MAX1241BCSA+ Datasheet

Parametric EquivalentRFQ

MAX1241CCSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2082MAX1241CCSA+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MAX1241ACSA is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute parts maintain identical specifications in resolution (12 bits), sampling rate (73 kSPS), input configuration (single-ended, 1 input), data interface (SPI), architecture (SAR), reference type (external), supply voltage ranges (2.7V ~ 5.25V for both analog and digital), operating temperature range (0°C ~ 70°C), and package form factor (8-SOIC). The primary differentiators among the substitute group are product status and compliance certifications, not functional or electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the MAX1241ACSA, direct substitution is supported by MAX1241ACSA+, MAX1241BCSA+, and MAX1241CCSA+. All three substitute parts maintain complete electrical and mechanical equivalence with the original device.

MAX1241ACSA+ provides the closest direct replacement, offering identical part number designation with active product status and ROHS3 compliance. This variant is suitable for designs requiring minimal change documentation.

MAX1241BCSA+ and MAX1241CCSA+ are parametric equivalents with active product status and ROHS3 compliance. These parts are functionally interchangeable and appropriate for new designs or redesigns where component selection flexibility exists.

For applications subject to RoHS compliance requirements, MAX1241ACSA+, MAX1241BCSA+, and MAX1241CCSA+ are all ROHS3 compliant and suitable for regulated environments. The original MAX1241ACSA is RoHS non-compliant and should not be used in new designs targeting RoHS-regulated markets.

Frequently Asked Questions (FAQ)

Q: Can MAX1241BCSA+ or MAX1241CCSA+ be used as direct replacements for MAX1241ACSA?

A: Yes. All three substitute parts are parametrically equivalent across all electrical specifications, including resolution, sampling rate, input configuration, supply voltage ranges, and operating temperature. The 8-SOIC package and surface mount characteristics are identical, enabling direct PCB-level substitution without design modification.

Q: What is the difference between MAX1241ACSA+ and MAX1241BCSA+?

A: The electrical and mechanical specifications are identical. Both parts feature 12-bit resolution, 73 kSPS sampling rate, single-ended input, SPI interface, and 8-SOIC packaging. The primary differences are product status (both active) and packaging format (both tube). These parts are interchangeable from a functional standpoint.

Q: Why is the original MAX1241ACSA classified as obsolete?

A: The MAX1241ACSA is listed as obsolete by the manufacturer. Active substitutes (MAX1241ACSA+, MAX1241BCSA+, MAX1241CCSA+) are available for ongoing procurement and design support. For new designs, selection from the active substitute group is recommended.

Q: Are all substitute parts RoHS compliant?

A: MAX1241ACSA+, MAX1241BCSA+, and MAX1241CCSA+ are all ROHS3 compliant. The original MAX1241ACSA is RoHS non-compliant. For applications requiring RoHS compliance, use only the substitute parts.

Q: Does packaging format affect electrical performance?

A: No. The packaging format (bulk versus tube) does not affect electrical performance or functional characteristics. Selection between packaging formats is based on procurement, handling, and inventory management requirements.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. All substitute parts maintain complete parametric equivalence with the original MAX1241ACSA. No circuit modifications, firmware changes, or design alterations are required for substitution.