MAX120EWG Equivalent & Substitute Parts

Part Overview

The MAX120EWG 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 500 kSPS sampling rate and operates from a 5V supply with external or internal reference options. The MAX120EWG is classified as obsolete, making identification of functionally equivalent active alternatives essential for new designs and production continuity.

Substiute Parts

MAX120EWG

Analog Devices Inc./Maxim IntegratedIn Stock: 2023MAX120EWG Datasheet

Current PartRFQ

MAX120EWG+

Analog Devices Inc./Maxim IntegratedIn Stock: 2479MAX120EWG+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX120EWG is determined by strict equivalence across the following critical parameters:

• Resolution: 12-bit ADC architecture
• Sampling Rate: 500 kSPS minimum performance
• Input Configuration: Single-ended input, 1 channel
• Conversion Architecture: SAR-based conversion
• Data Interface: Parallel output
• Reference Options: Support for both external and internal references
• Supply Voltage Compatibility: 5V analog and digital supplies with specified voltage ranges
• Package Compatibility: 24-SOIC surface mount package
• Operating Temperature: -40°C to 85°C range

The MAX120EWG+ is identified as a direct substitute based on identical electrical specifications, package configuration, and functional performance across all parameters listed above.

Parameter Comparison

Engineering Selection Recommendations

The MAX120EWG+ is the direct functional equivalent for MAX120EWG applications. Selection between these parts is determined by regulatory and compliance requirements:

MAX120EWG+ is the preferred selection for new designs and production applications. This part maintains identical electrical and mechanical specifications while offering active product status and ROHS3 compliance. The transition from MAX120EWG to MAX120EWG+ requires no circuit modifications, as all functional parameters, pin configurations, and supply requirements are equivalent.

MAX120EWG remains available for legacy system support and maintenance applications where existing inventory is present. However, the obsolete product status and RoHS non-compliance status limit its use in new production environments subject to environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can MAX120EWG+ be used as a direct replacement for MAX120EWG in existing designs?

A: Yes. The MAX120EWG+ is electrically and mechanically identical to the MAX120EWG. No circuit modifications, PCB layout changes, or firmware updates are required. Pin assignments, supply voltage requirements, and functional performance are equivalent across all specified parameters.

Q: What is the primary difference between MAX120EWG and MAX120EWG+?

A: The MAX120EWG+ is the active production variant with ROHS3 compliance, while the MAX120EWG is classified as obsolete and RoHS non-compliant. All electrical specifications, sampling rates, resolution, and package configurations are identical.

Q: Are there any package or pinout differences between these parts?

A: No. Both parts use the 24-SOIC surface mount package with identical pinout and mechanical dimensions (0.295" width, 7.50mm). PCB footprints and assembly processes are interchangeable.

Q: What supply voltages are required for operation?

A: Both parts require a 5V digital supply and support analog supply voltages of 5V with a range of -10.8V to 15.75V. Reference voltage can be supplied externally or generated internally.

Q: Is the MAX120EWG+ suitable for applications requiring RoHS compliance?

A: Yes. The MAX120EWG+ is ROHS3 compliant and meets environmental regulatory requirements for new product designs and manufacturing environments subject to RoHS directives.