MAX189ACWE+ Equivalent & Substitute Parts

Part Overview

The MAX189ACWE+ 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 75 kSPS sampling rate and operates from dual 5V supply rails. The part is currently classified as obsolete, making identification of active equivalent alternatives essential for new designs and production continuity.

Substiute Parts

MAX189ACWE+

Analog Devices Inc./Maxim IntegratedIn Stock: 762MAX189ACWE+ Datasheet

Current PartRFQ

MAX189BCWE+

Analog Devices Inc./Maxim IntegratedIn Stock: 838MAX189BCWE+ Datasheet

Parametric EquivalentRFQ

MAX189CCWE+

Analog Devices Inc./Maxim IntegratedIn Stock: 979MAX189CCWE+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX189ACWE+ is determined by strict equivalence across all electrical and mechanical parameters. The substitute parts MAX189BCWE+ and MAX189CCWE+ maintain identical specifications for resolution, sampling rate, input configuration, data interface, supply voltages, package type, and mounting method. The primary distinction between these parts lies in their product status and operating temperature grade designation, which is reflected in the part number suffix. Both substitute parts are currently in active production status, whereas the original MAX189ACWE+ is obsolete.

Substitution eligibility is based on the following key parameters:

• 12-bit resolution
• 75 kSPS sampling rate
• Single-ended input configuration
• SPI digital interface
• External reference architecture
• 5V analog and digital supply requirements
• 16-SOIC surface mount package
• 0°C to 70°C operating temperature range

Parameter Comparison

Engineering Selection Recommendations

Both MAX189BCWE+ and MAX189CCWE+ are direct parametric equivalents to the MAX189ACWE+ and are suitable for component replacement in applications requiring 12-bit single-ended analog-to-digital conversion with SPI interface and 75 kSPS sampling capability.

The primary advantage of selecting either substitute part is their active production status, ensuring long-term availability and supply chain continuity. Both parts maintain identical electrical performance and mechanical compatibility with the original MAX189ACWE+ design.

From a compliance perspective, all three parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity ratings. The choice between MAX189BCWE+ and MAX189CCWE+ should be based on inventory availability and procurement lead times, as both parts are electrically and mechanically interchangeable.

Frequently Asked Questions (FAQ)

Q: Can MAX189BCWE+ and MAX189CCWE+ be used interchangeably with MAX189ACWE+?

A: Yes. Both substitute parts maintain identical electrical specifications, including 12-bit resolution, 75 kSPS sampling rate, single-ended input configuration, SPI interface, and 5V supply requirements. The 16-SOIC package and surface mount configuration are identical, enabling direct PCB-level substitution without design modification.

Q: What is the difference between the three part numbers?

A: The differences are reflected in the part number suffix and product status. MAX189ACWE+ is obsolete, while MAX189BCWE+ and MAX189CCWE+ are active production parts. The suffix designation indicates temperature grade classification, but all three parts operate within the 0°C to 70°C temperature range specified in their datasheets.

Q: Are there any compliance or certification differences?

A: No. All three parts carry identical RoHS3 compliance, REACH unaffected status, and moisture sensitivity level ratings. There are no differences in regulatory compliance or environmental certifications.

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

A: MAX189BCWE+ and MAX189CCWE+ are supplied in tube packaging. Both maintain the 16-SOIC surface mount package configuration identical to the original MAX189ACWE+.

Q: Can these parts be used in new designs?

A: Yes. MAX189BCWE+ and MAX189CCWE+ are active production parts and are suitable for new design implementations. The MAX189ACWE+ should not be selected for new designs due to its obsolete status.