MAX127BENG Equivalent & Substitute Parts

Part Overview

The MAX127BENG is a 12-bit Analog-to-Digital Converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications requiring 8 single-ended input channels with I2C serial interface. The device operates at a sampling rate of 8 kHz and is housed in a 24-pin DIP package for through-hole mounting.

The MAX127BENG is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure continued availability for new designs, maintenance applications, and production continuity where original components are no longer readily available from primary sources.

Substiute Parts

MAX127BENG

Analog Devices Inc./Maxim IntegratedIn Stock: 2303MAX127BENG Datasheet

Current PartRFQ

MAX127BENG+

Analog Devices Inc./Maxim IntegratedIn Stock: 1195MAX127BENG+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX127BENG is determined by strict equivalence across the following critical parameters:

• Resolution and Sampling Rate: 12-bit resolution at 8 kHz sampling rate
• Channel Configuration: 8 single-ended input channels
• Serial Interface: I2C protocol compatibility
• Supply Voltage: 5V analog and digital supply operation
• Package and Mounting: 24-DIP through-hole package maintaining identical pinout and mechanical compatibility
• Operating Temperature: -40°C to 85°C range
• Architecture: SAR-based analog-to-digital conversion

The MAX127BENG+ qualifies as a direct substitute based on matching all critical electrical and mechanical parameters while maintaining identical package specifications and pinout compatibility.

Parameter Comparison

Engineering Selection Recommendations

The MAX127BENG+ is the direct functional equivalent of the MAX127BENG and serves as the primary substitute for this obsolete component. Both devices share identical electrical specifications, channel configuration, sampling characteristics, and package form factor.

The MAX127BENG+ offers the following advantages for new designs and production applications:

• Active Product Status: The MAX127BENG+ maintains active manufacturing status, ensuring long-term availability and supply chain reliability compared to the obsolete MAX127BENG.
• RoHS3 Compliance: The MAX127BENG+ meets ROHS3 compliance requirements, whereas the original MAX127BENG is RoHS non-compliant. This distinction is critical for applications subject to environmental and regulatory standards.
• Improved Supply Voltage Tolerance: The MAX127BENG+ specifies a supply voltage range of 4.75V to 5.25V, providing greater tolerance margins compared to the nominal 5V specification of the MAX127BENG.

For applications where RoHS compliance is not a requirement and existing inventory of MAX127BENG components is available, the original part may continue to be used. However, for new production runs and long-term design continuity, the MAX127BENG+ is the recommended selection.

Frequently Asked Questions (FAQ)

Q: Can the MAX127BENG+ be used as a direct replacement for the MAX127BENG in existing designs?

A: Yes. The MAX127BENG+ is a direct substitute. Both devices feature identical 12-bit resolution, 8-channel single-ended input configuration, 8 kHz sampling rate, I2C interface, and 24-DIP package. Pinout and electrical operation are fully compatible. No circuit modifications are required.

Q: What is the primary difference between the MAX127BENG and MAX127BENG+?

A: The MAX127BENG+ is the active production variant with ROHS3 compliance and improved supply voltage tolerance (4.75V to 5.25V). The original MAX127BENG is obsolete and RoHS non-compliant. Both maintain identical functional specifications and package form factor.

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

A: No. Both the MAX127BENG and MAX127BENG+ use the 24-DIP (0.300", 7.62mm) package with through-hole mounting. Mechanical compatibility and PCB layout requirements are identical.

Q: Why is the MAX127BENG classified as obsolete?

A: The MAX127BENG has been superseded by the MAX127BENG+, which offers improved compliance certifications and supply voltage tolerance while maintaining full functional equivalence. Analog Devices Inc./Maxim Integrated has transitioned production to the newer variant.

Q: Is the MAX127BENG+ suitable for applications requiring RoHS compliance?

A: Yes. The MAX127BENG+ is ROHS3 compliant and is appropriate for applications subject to RoHS environmental standards. The original MAX127BENG is not RoHS compliant.

Q: What is the supply voltage specification for each part?

A: The MAX127BENG specifies 5V for both analog and digital supplies. The MAX127BENG+ specifies 4.75V to 5.25V for both supplies, providing a wider operating margin. Both are compatible with standard 5V supply systems.