MAX189ACPA Equivalent & Substitute Parts

Part Overview

The MAX189ACPA is a 12-bit Analog-to-Digital Converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated, designed for single-ended input data acquisition applications. It features a Successive Approximation Register (SAR) architecture with a 75 kSPS sampling rate and operates on 5V supply voltage for both analog and digital domains. The device is packaged in an 8-PDIP through-hole configuration.

The MAX189ACPA is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production or maintenance requirements for legacy systems.

Substiute Parts

MAX189ACPA

Analog Devices Inc./Maxim IntegratedIn Stock: 770MAX189ACPA Datasheet

Current PartRFQ

MAX189ACPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1014MAX189ACPA+ Datasheet

DirectRFQ

MAX189CCPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1004MAX189CCPA+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MAX189ACPA is determined by strict equivalence across the following critical parameters:

• Resolution & Sampling Rate: 12-bit resolution at 75 kSPS
• Input Configuration: Single-ended input with 1 channel
• Interface Protocol: SPI data interface
• Converter Architecture: SAR topology
• Supply Voltage Requirements: 5V analog and digital supplies
• Package & Mounting: 8-DIP through-hole package (0.300", 7.62mm)
• Operating Temperature: 0°C to 70°C range
• Reference Configuration: External reference type

The substitute parts identified—MAX189ACPA+ and MAX189CCPA+—maintain identical electrical and mechanical specifications across all parameters listed above. Both substitutes are derived from the same MAX189 base product family and are pin-compatible with the original MAX189ACPA.

Parameter Comparison

Engineering Selection Recommendations

Both MAX189ACPA+ and MAX189CCPA+ are functionally equivalent to the MAX189ACPA and serve as direct substitutes for component replacement and new designs.

MAX189ACPA+ is the direct successor to the MAX189ACPA, maintaining the same part number designation with the addition of the "+" suffix. It is currently in active production status and carries ROHS3 compliance certification, making it suitable for applications requiring modern regulatory compliance. This part is the preferred choice for direct replacement in existing designs.

MAX189CCPA+ is a parametric equivalent offering identical electrical and mechanical specifications. It is also in active production with ROHS3 compliance. The selection between MAX189ACPA+ and MAX189CCPA+ may be determined by availability, packaging preferences (both supplied in tube packaging), or supply chain considerations, as both parts are functionally interchangeable within the specified operating parameters.

Both substitutes eliminate the obsolescence risk associated with the original MAX189ACPA while maintaining full design compatibility and performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can MAX189ACPA+ and MAX189CCPA+ be used interchangeably with MAX189ACPA?

A: Yes. Both substitute parts maintain identical electrical specifications, pin configuration, and package dimensions. They are pin-for-pin compatible and require no circuit modifications for substitution.

Q: What is the significance of the "+" suffix in MAX189ACPA+ and MAX189CCPA+?

A: The "+" suffix indicates an updated version of the base MAX189 product line. These parts incorporate modern manufacturing processes and comply with current regulatory standards (ROHS3), while maintaining backward compatibility with the original MAX189ACPA design.

Q: Are there any differences in performance between MAX189ACPA and its substitutes?

A: No. All three parts share identical performance parameters: 12-bit resolution, 75 kSPS sampling rate, single-ended input configuration, SPI interface, and 5V supply requirements. Performance characteristics remain constant across the product line.

Q: Why is the original MAX189ACPA classified as obsolete?

A: The MAX189ACPA has reached end-of-life status in the manufacturer's product portfolio. The active substitutes (MAX189ACPA+ and MAX189CCPA+) represent the current manufacturing alternatives and are recommended for all new designs and ongoing production requirements.

Q: Are there any compliance or certification differences between the parts?

A: Yes. The original MAX189ACPA is RoHS non-compliant, while both MAX189ACPA+ and MAX189CCPA+ carry ROHS3 compliance certification. For applications requiring regulatory compliance with modern environmental standards, the substitute parts are the appropriate choice.

Q: What packaging options are available for the substitute parts?

A: Both MAX189ACPA+ and MAX189CCPA+ are supplied in tube packaging. The 8-DIP through-hole package dimensions remain consistent at 0.300" (7.62mm) across all variants.

Q: Can I use these parts in new designs, or are they only for replacement applications?

A: Both substitute parts are in active production status and are suitable for new designs. They are the recommended choice for any application requiring a 12-bit, 75 kSPS single-ended ADC with SPI interface in an 8-DIP package.