MAX508BCPP Equivalent & Substitute Parts

Part Overview

The MAX508BCPP is a 12-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications requiring voltage output conversion. This component features an R-2R architecture with internal reference, parallel data interface, and buffered voltage output. The MAX508BCPP is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs. Active alternatives with compatible electrical and mechanical specifications are available from Analog Devices.

Substiute Parts

MAX508BCPP

Analog Devices Inc./Maxim IntegratedIn Stock: 906MAX508BCPP Datasheet

Current PartRFQ

MAX508BCPP+

Analog Devices Inc./Maxim IntegratedIn Stock: 3370MAX508BCPP+ Datasheet

DirectRFQ

AD7248AANZ

Analog Devices Inc.In Stock: 2259AD7248AANZ Datasheet

MFR RecommendedRFQ

AD7248ABNZ

Analog Devices Inc.In Stock: 881AD7248ABNZ Datasheet

MFR RecommendedRFQ

AD7248JNZ

Analog Devices Inc.In Stock: 2541AD7248JNZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MAX508BCPP is determined by the following critical parameters: 12-bit resolution, single DAC channel, R-2R architecture, internal reference, parallel data interface, buffered voltage output, 20-DIP package with through-hole mounting, and compatible supply voltage ranges. Substitute parts must maintain these core electrical and mechanical specifications to ensure functional equivalence in existing designs.

The substitute parts are grouped into two categories based on package compatibility:

20-DIP Package (Direct Pin-Compatible): MAX508BCPP+, AD7248AANZ, and AD7248JNZ maintain the original 20-DIP package format, enabling direct socket replacement without PCB modification.

24-DIP Package (Functional Equivalent, Package Variation): AD7248ABNZ uses a 24-DIP package, requiring PCB layout adjustment but offering improved performance specifications in certain parameters.

Parameter Comparison

Engineering Selection Recommendations

MAX508BCPP+ (Direct Replacement): This part is the active production equivalent of the MAX508BCPP, maintaining identical electrical specifications and 20-DIP package format. It is ROHS3 compliant and recommended for designs requiring direct socket compatibility with existing MAX508BCPP installations. Inventory availability is higher than the original part.

AD7248AANZ (20-DIP Alternative): This part provides 20-DIP package compatibility with extended operating temperature range (-40°C to 85°C) and expanded supply voltage tolerance (±10.8V ~ 16.5V). Settling time is 7µs versus 5µs for the original part. ROHS3 compliant. Suitable for applications requiring wider temperature operation or supply voltage margins.

AD7248JNZ (20-DIP Alternative): This part maintains 20-DIP package format with settling time specifications of 5µs or 10µs and restricted supply voltage range (±14.25V ~ 15.75V). Operating temperature matches the original specification (0°C ~ 70°C). ROHS3 compliant. Applicable for systems with tightly regulated power supplies within the specified range.

AD7248ABNZ (24-DIP Functional Equivalent): This part offers improved INL specification (±0.75 LSB maximum) and extended operating temperature range (-40°C to 85°C), but requires 24-DIP package accommodation. ROHS3 compliant. Suitable for new designs where PCB layout can accommodate the larger package and improved linearity is beneficial.

Frequently Asked Questions (FAQ)

Q: Can MAX508BCPP+ be used as a direct replacement for MAX508BCPP? A: Yes. MAX508BCPP+ is the active production equivalent with identical electrical specifications and 20-DIP package format. No circuit modifications are required.

Q: What is the primary difference between 20-DIP and 24-DIP package options? A: The 20-DIP package (MAX508BCPP, MAX508BCPP+, AD7248AANZ, AD7248JNZ) enables direct socket replacement in existing designs. The 24-DIP package (AD7248ABNZ) requires PCB layout modification but offers improved INL specification (±0.75 LSB versus ±1 LSB).

Q: Are all substitute parts RoHS compliant? A: MAX508BCPP is RoHS non-compliant. All substitute parts (MAX508BCPP+, AD7248AANZ, AD7248ABNZ, AD7248JNZ) are ROHS3 compliant.

Q: Which substitute part has the widest operating temperature range? A: AD7248AANZ and AD7248ABNZ both operate from -40°C to 85°C, compared to 0°C to 70°C for the original MAX508BCPP and MAX508BCPP+.

Q: What are the supply voltage differences among substitute parts? A: MAX508BCPP and MAX508BCPP+ require ±11.4V ~ 15.75V. AD7248AANZ and AD7248ABNZ accept ±10.8V ~ 16.5V (wider tolerance). AD7248JNZ operates within ±14.25V ~ 15.75V (narrower tolerance).

Q: Does settling time affect functional compatibility? A: Settling time differences (5µs versus 7µs) do not affect functional compatibility but may impact system timing performance. Applications with strict settling time requirements should verify compatibility with the specific substitute part's specification.

Q: Are all substitute parts available in tube packaging? A: Yes. MAX508BCPP+, AD7248AANZ, AD7248ABNZ, and AD7248JNZ are all available in tube packaging.