MAX120ENG 12-Bit SAR ADC Equivalent & Substitute Parts

Part Overview

The MAX120ENG is a 12-bit Successive Approximation Register (SAR) analog-to-digital converter manufactured by Analog Devices Inc./Maxim Integrated. It features a single-ended input, parallel data interface, and operates from a 5V supply with external or internal reference options. The device is packaged in a 24-pin DIP configuration suitable for through-hole mounting.

The MAX120ENG is classified as obsolete. Identifying equivalent and substitute parts is necessary to support legacy system maintenance, design updates, and procurement continuity where original components are no longer readily available or have been discontinued.

Substiute Parts

MAX120ENG

Analog Devices Inc./Maxim IntegratedIn Stock: 18789MAX120ENG Datasheet

Current PartRFQ

MAX120ENG+

Analog Devices Inc./Maxim IntegratedIn Stock: 1163MAX120ENG+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX120ENG is determined by strict equivalence across the following critical parameters:

• Resolution: 12 bits
• Sampling Rate: 500 kSPS
• Input Configuration: Single-ended, 1 input
• Data Interface: Parallel
• Architecture: SAR
• Reference Options: External and Internal
• Supply Voltages: Analog 5V/-10.8V ~ 15.75V, Digital 5V
• Operating Temperature: -40°C ~ 85°C
• Package: 24-DIP through-hole
• Pin Compatibility: Base product number MAX120

The MAX120ENG+ is a direct substitute that maintains identical electrical specifications and pinout while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The MAX120ENG+ is the direct equivalent substitute for the MAX120ENG. Both devices share identical electrical specifications, pinout, and package configuration, ensuring drop-in compatibility in existing designs.

The MAX120ENG+ offers two significant advantages over the original MAX120ENG:

1. Active Product Status: The MAX120ENG+ is actively manufactured and supported, providing assured long-term availability and supply chain continuity.

2. Compliance Certifications: The MAX120ENG+ is ROHS3 compliant, meeting current environmental and regulatory requirements. Both variants maintain REACH Unaffected status and EAR99 export classification.

For new designs or system updates, the MAX120ENG+ is the appropriate selection. For legacy system maintenance where the original MAX120ENG is specified, the MAX120ENG+ provides equivalent functionality with improved compliance and availability.

Frequently Asked Questions (FAQ)

Q: Can the MAX120ENG+ be used as a direct replacement for the MAX120ENG in existing designs?

A: Yes. The MAX120ENG+ is electrically and mechanically identical to the MAX120ENG. Both devices feature the same 12-bit resolution, 500 kSPS sampling rate, single-ended input, parallel interface, and 24-DIP through-hole package. Pin-for-pin compatibility is maintained.

Q: What is the difference between MAX120ENG and MAX120ENG+?

A: The primary differences are product status and compliance. The MAX120ENG is obsolete and RoHS non-compliant. The MAX120ENG+ is actively manufactured, ROHS3 compliant, and supplied in tube packaging. Electrical specifications and performance are identical.

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

A: Both parts use the 24-DIP (0.300", 7.62mm) package with through-hole mounting. The MAX120ENG+ is supplied in tube packaging, while the original MAX120ENG packaging is not specified. The physical footprint and pin configuration are identical.

Q: What supply voltages are required for operation?

A: The analog supply accepts 5V or -10.8V to 15.75V. The digital supply requires 5V. Both the MAX120ENG and MAX120ENG+ operate across the same voltage ranges.

Q: Is the MAX120ENG+ suitable for new product designs?

A: Yes. The MAX120ENG+ is the recommended choice for new designs. It provides active manufacturer support, current compliance certifications, and assured availability compared to the obsolete MAX120ENG.