MAX1241BCSA Equivalent & Substitute Parts

Part Overview

The MAX1241BCSA 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 component 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. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity.

Substiute Parts

MAX1241BCSA
Analog Devices Inc./Maxim IntegratedIn Stock: 1340MAX1241BCSA Datasheet
MAX1241BCSA
Current Part
MAX1241BCSA+
Analog Devices Inc./Maxim IntegratedIn Stock: 2321MAX1241BCSA+ Datasheet
MAX1241BCSA+
Direct
MAX1241ACSA+
Analog Devices Inc./Maxim IntegratedIn Stock: 794MAX1241ACSA+ Datasheet
MAX1241ACSA+
Parametric Equivalent
MAX1241CCSA+
Analog Devices Inc./Maxim IntegratedIn Stock: 2082MAX1241CCSA+ Datasheet
MAX1241CCSA+
Parametric Equivalent

Key Parameters

Parameter Value
Resolution 12 Bit
Sampling Rate 73 kSPS
Number of Inputs 1
Input Type Single Ended
Data Interface SPI
Architecture SAR
Reference Type External
Voltage Supply (Analog) 2.7V ~ 5.25V
Voltage Supply (Digital) 2.7V ~ 5.25V
Operating Temperature 0°C ~ 70°C
Package 8-SOIC (0.154", 3.90mm Width)
Mounting Type Surface Mount

Substitute Part Grouping Explanation

Substitution for the MAX1241BCSA is determined by strict equivalence across all electrical and mechanical parameters. The substitute parts MAX1241BCSA+, MAX1241ACSA+, and MAX1241CCSA+ are functionally equivalent based on the following criteria:

  • 12-bit resolution and 73 kSPS sampling rate
  • Single-ended input configuration with SPI data interface
  • SAR architecture with external reference
  • Identical supply voltage ranges (2.7V ~ 5.25V for both analog and digital)
  • Operating temperature range of 0°C ~ 70°C
  • 8-SOIC surface mount package with identical physical dimensions

The primary distinction among these parts is product status and compliance certification, not functional capability.

Parameter Comparison

Parameter MAX1241BCSA MAX1241BCSA+ MAX1241ACSA+ MAX1241CCSA+
Manufacturer Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated
Resolution (Bits) 12 12 12 12
Sampling Rate 73 kSPS 73 kSPS 73 kSPS 73 kSPS
Number of Inputs 1 1 1 1
Input Type Single Ended Single Ended Single Ended Single Ended
Data Interface SPI SPI SPI SPI
Architecture SAR SAR SAR SAR
Reference Type External External External External
Voltage Supply (Analog) 2.7V ~ 5.25V 2.7V ~ 5.25V 2.7V ~ 5.25V 2.7V ~ 5.25V
Voltage Supply (Digital) 2.7V ~ 5.25V 2.7V ~ 5.25V 2.7V ~ 5.25V 2.7V ~ 5.25V
Operating Temperature 0°C ~ 70°C 0°C ~ 70°C 0°C ~ 70°C 0°C ~ 70°C
Package / Case 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Product Status Obsolete Active Active Active
RoHS Status RoHS non-compliant ROHS3 Compliant ROHS3 Compliant ROHS3 Compliant
Packaging Not specified Tube Tube Tube

Engineering Selection Recommendations

For new designs and procurement, MAX1241BCSA+ is the direct manufacturer equivalent with active product status and ROHS3 compliance. This part maintains identical electrical and mechanical specifications while offering improved regulatory compliance and ongoing manufacturer support.

MAX1241ACSA+ and MAX1241CCSA+ are parametric equivalents with identical functional characteristics and active product status. Selection among these three active variants should be based on availability and supply chain requirements, as all three meet the same electrical and mechanical specifications.

The original MAX1241BCSA, classified as obsolete, should be replaced in new designs with one of the active equivalents listed above.

Frequently Asked Questions (FAQ)

Q: Can MAX1241BCSA+ be used as a direct replacement for MAX1241BCSA?

A: Yes. MAX1241BCSA+ is the direct manufacturer equivalent with identical electrical specifications, pin configuration, and 8-SOIC package. The primary difference is active product status and ROHS3 compliance certification.

Q: Are MAX1241ACSA+ and MAX1241CCSA+ functionally interchangeable with MAX1241BCSA+?

A: Yes. All three active variants (MAX1241BCSA+, MAX1241ACSA+, MAX1241CCSA+) share identical 12-bit resolution, 73 kSPS sampling rate, SPI interface, external reference configuration, and 8-SOIC package specifications. They are parametric equivalents suitable for the same applications.

Q: What is the difference between the substitute parts?

A: The substitute parts differ only in product status (all active) and compliance certifications (all ROHS3 compliant). Electrical performance, pin configuration, and package dimensions are identical across all three variants.

Q: Is the 8-SOIC package compatible with existing PCB designs?

A: Yes. All substitute parts use the identical 8-SOIC (0.154", 3.90mm Width) surface mount package, ensuring direct compatibility with existing PCB layouts and assembly processes.

Q: What supply voltage range applies to all substitute parts?

A: All substitute parts operate with 2.7V to 5.25V supply voltage for both analog and digital supplies, matching the original MAX1241BCSA specification.

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